東京精電 List of Products and Services

Tokyo Seiden's "DC High Current Power Supply" is a DC high current power supply using a thyristor phase control method. The standard is constant voltage control, but it can also accommodate constant current control with effective value detection. It can be used for processes such as annealing of copper wire, electrodeposition painting, various plating applications, welding, DC arc furnaces, heaters, evaporators, and other applications that utilize heat from high currents. 【Features】 ■ It is possible to provide two output systems. ■ Output 2 can also be set as an AC output. ■ The transformer can be either built-in or separate, depending on the power supply capacity. ■ An optional power meter can also be added. *For more details, please download the PDF or feel free to contact us.

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Tokyo Seiden's "Rectifier Panel" is a large-capacity rectifier that converts three-phase alternating current into direct current. It can be used for testing devices with DC input, such as large-capacity power conditioners and converters. By switching taps, it can accommodate a wide range of input voltage. 【Features】 ■ Large-capacity rectifier ■ For testing devices with DC input ■ Capable of handling a wide range of input voltage ■ Additional functions such as voltage and current monitoring, overvoltage, and overcurrent discharge are possible *For more details, please download the PDF or feel free to contact us.

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Tokyo Seiden's "Three-Phase High Current Constant Current Power Supply" converts three-phase 200V to 0–4000A for three circuits or 0–1100A for three circuits, supplying power to the load with a constant current. It can be used for short-circuit tests of breakers, fuses, circuit breakers, wires, terminal blocks, and for temperature rise tests. With independent control of three circuits, it can correct the differences in output impedance of the UVW phases, stabilizing the output current. 【Features】 ■ Control is via independent control of three circuits ■ Composed of voltage regulator panel, transformer panel, and control panel ■ Voltage adjustment is motor-driven (manual operation is also possible) *For more details, please download the PDF or feel free to contact us.

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Tokyo Seiden's "AC Large Current Power Supply" is an AC large current power supply using thyristor phase angle control. It has a proven capability of 3000A and can provide two output systems. The standard mode is constant voltage control, but it can also support effective value detection for constant current control. 【Features】 ■ Proven capability of 3000A ■ Input is single-phase two-wire ■ Can provide two output systems ■ Optional power meter can be added ■ Can be used as an AC power supply even if there is distortion in the output waveform *For more details, please download the PDF or feel free to contact us.

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Tokyo Seiden's "Ripple Superimposed Power Supply for Secondary Batteries" is a power supply that flows ripple current through secondary batteries to investigate the battery's heat generation and characteristics during or after the application of ripple current. The frequency of the output ripple current can be variably set from 1 kHz to 30 kHz, and the output ripple current can be varied and applied from 0 to 60 Arms. The current waveform will take a shape close to a triangular wave due to wiring impedance. 【Features】 ■ The frequency of the output ripple current can be variably set from 1 kHz to 30 kHz ■ The output ripple current can be varied and applied from 0 to 60 Arms ■ The current waveform will take a shape close to a triangular wave ■ Composed of two units: the main unit and the LC box *For more details, please download the PDF or feel free to contact us.

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Tokyo Seiden's "Metal Spray Power Supply" is a power supply device that provides electricity to the "metal spray device," which sprays metal vapor. Thanks to the built-in voltage regulator and transformer, it allows for a wide range of voltage variations. Additionally, it enables output monitoring through a digital voltmeter and ammeter, as well as output switching via external control. Overcurrent protection is possible through the comparator output of the ammeter and external control. 【Features】 ■ Converts three-phase AC to DC ■ Wide range of voltage variation ■ Output monitoring with digital voltmeter and ammeter ■ Output switching via external control *For more details, please download the PDF or feel free to contact us.

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The "PFS Series" from Tokyo Seiden is a power supply for conducting instantaneous trip tests of circuit breakers. The energization time can be set to other values besides 0.2 seconds, and the current can support up to a maximum of 12,000A. The current setting is configured using a sliding-type voltage regulator on the primary side voltage of a large current transformer. 【Features】 ■ For instantaneous trip experiments of circuit breakers ■ Energization time can be set to values other than 0.2 seconds ■ Current can support up to a maximum of 12,000A *For more details, please download the PDF or feel free to contact us.

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The "AC/DC High Voltage Power Supply" from Tokyo Seiden is a high voltage power supply that outputs three high voltages (AC, DC+, DC-) by switching between them. It uses a constant frequency and constant voltage power supply on the primary side to achieve a stable output voltage. Additionally, the range switching between 25kV and 50kV allows for a wide range of voltage settings. It can be used as a calibration power supply for high voltage meters and voltage dividers by connecting external standard equipment. 【Features】 ■ The high voltage generation unit is embedded in oil, providing long life and stable performance. ■ The DC generation unit has built-in discharge circuits for each output. ■ Detailed voltage adjustments are possible with a fine-tuning voltage adjuster. ■ Voltage settings and output ON/OFF can be controlled from a remote box. ■ It can be divided into AC and DC racks for transport. *For more details, please download the PDF or feel free to contact us.

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The "400V Output Sliding Voltage Regulator" from Tokyo Seiden is a device composed of a toroidal transformer, a sliding mechanism, and sliding brushes, allowing for variable output voltage. It can output from 0 to 400V with an input voltage of 200V, and unlike power supplies that use semiconductors, it is resistant to instantaneous overcurrent. With a simple structure that allows the desired voltage to be obtained by manually turning a handle, it is easy to handle. 【Features】 ■ Outputs from 0 to 400V ■ Manual operation ■ Enclosed case for safety with no exposure of charging parts ■ Equipped with casters for easy movement of the equipment *For more details, please download the PDF or feel free to contact us.

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This device is a non-isolated step-up/down DC/DC converter. It is capable of outputting constant voltage, constant current, and constant power. It can be customized in terms of capacity, voltage, interface, etc., so please contact us. 【Features】 ■ Capable of outputting constant voltage, constant current, and constant power ■ Customizable *For more details, please refer to the PDF document or feel free to contact us.

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The "PCT・PCW series" is a DC power supply that uses thyristor phase angle control for constant voltage and constant current control. The "PCW series" adopts a 12-phase rectification method and is designed to suppress harmonic currents (improve power factor). Input voltage, output voltage, and capacity can be customized, so please contact us for inquiries. 【Features】 ■ Proven production of output voltage up to DC 1,000V and capacity up to 100kVA ■ Capable of suppressing high-frequency input current and improving the power factor of input current (12-phase rectification method) ■ Reduction of output voltage ripple (12-phase rectification method) *For more details, please refer to the PDF materials or feel free to contact us.

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This power supply unit is used to supply 24V DC power to transmitters in devices that measure pressure, differential pressure, temperature, and so on. It is suitable for connecting numerous transmitters; for example, in the case of a 2-wire output 4-20mA transmitter, approximately 30 units can be used. Additionally, it has high output voltage stability and low ripple. 【Features】 ■ Widely adaptable for connecting transmitters ■ High output voltage stability and low ripple *For more details, please refer to the PDF document or feel free to contact us.

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This device is a DC high-voltage power supply that achieves large-capacity output by adopting a high-frequency insulation method (switching method). By incorporating a power factor correction circuit in the three-phase AC input section, it reduces input capacity and promotes energy savings. Input voltage, output voltage, current, etc., can be customized, so please contact us for inquiries. 【Features】 ■ Equipped with startup and short-circuit sequences including soft start function, instantaneous spark protection function, continuous spark protection function, and high-voltage short-circuit protection function. ■ Includes short-circuit protection features required for power supplies for dust collectors to prevent damage from sparks. *For more details, please refer to the PDF materials or feel free to contact us.

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This device is an isolated DC-DC converter that performs bidirectional power conversion. It can be used in energy storage systems such as HEMS, regional distributed smart grids connected to DC power supply systems, power regeneration systems using motors and generators, and research and development for charge and discharge testing. If customization is required, we can support everything from circuit and mechanical design of power electronics products to component design, such as copper bars, and the final completion of the product. [Features] ■ Bidirectional power conversion ■ Various customization options available for shape and other specifications *For more details, please refer to the PDF document or feel free to contact us.

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This device is a DC high voltage power supply that generates high DC voltage using a Cockcroft-Walton circuit. The Cockcroft-Walton circuit can easily generate high voltage from low voltage and requires a small transformer, but it cannot handle large currents, and depending on the load, the ripple may become significant. The output voltage can support up to DC 90kV. Input voltage, output voltage, and other specifications can be customized, so please contact us for more information. 【Features】 ■ Supports output voltage up to DC 90kV ■ Customizable *For more details, please refer to the PDF document or feel free to contact us.

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This device is a DC-DC converter that supports high input voltage. The output side is low voltage, allowing for connection to low-voltage equipment and batteries. It has various protection features. In addition to specifications that output according to the specified voltage from external sources, it also supports operation via a panel and external controls. 【Features】 ■ Complies with vibration and shock standards (JIS D 1601 Class 3 B Type Stage 45) ■ Supports high input voltage ■ The output side is low voltage *For more details, please refer to the PDF document or feel free to contact us.

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The "CCFT Series" is a frequency-variable AC constant current power supply. It adopts a linear amplifier circuit method, ensuring low distortion by controlling the instantaneous waveform to produce a sine wave output current. Its fast rise time allows for precise measurement of the time until the current flows through breakers, etc., and is interrupted. By using a separate transformer, it reduces the connection impedance with the workpiece, allowing for a cost-effective proposal by keeping the power supply capacity low. Customization is available for 2kVA and above, as well as for other specifications, so please contact us. 【Features】 ■ Low distortion ■ Accurate measurement of interruption time ■ Customizable ■ Output signal during current flow to external contacts (optional) ■ Ability to output current synchronized with the phase of an external voltage by inputting external voltage (optional) *For more details, please refer to the PDF document or feel free to contact us.

• Testing Equipment and Devices

This device is a constant frequency, constant voltage power supply that can output up to 600V with variable frequency and variable output voltage. It adopts a PWM inverter method to achieve high efficiency. It can provide stable output with low distortion even for low power factor loads such as motors. We can also customize the voltage output of 632V (575V ±10%) for testing industrial air conditioning equipment for the Canadian market. 【Features】 - Suitable for operational testing of industrial air conditioning equipment - Standard RS-232C interface for external operation - As a factory option, it can be equipped with a converter for LAN control or GP-IB addition *For more details, please refer to the PDF materials or feel free to contact us.

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This device is an isolated grid-connected inverter, unlike commercially available solar power converters. It is ideal for applications that require isolation, such as fuel cells. The power generation and the ON/OFF operation are controlled by communication commands from the host machine. Input voltage and output capacity can be customized, so please contact us for more information. 【Features】 ■ Isolated type ■ Customizable input voltage and output capacity *For more details, please refer to the PDF document or feel free to contact us.

• Testing Equipment and Devices

The "Built-in Switching Power Supply" is a switching power supply designed for built-in applications, featuring compatibility with 440V input and multi-channel output. The capacity, voltage, and number of outputs can be customized, so please contact us for more information. 【Features】 ■ 440V input compatible ■ Multi-channel output compatible ■ Customization available *For more details, please refer to the PDF document or feel free to contact us.

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This device supplies power from the battery to the load side during a power outage, aiming to achieve an uninterruptible power supply for the load side. It continuously receives commercial power, converts it to direct current to charge the battery while supplying power to the load side, and during a power outage, it supplies power from the battery to the load. The output switches without any interruption. It is suitable for emergency lighting power, automatic door opening and closing during emergencies, and for returning NC machines to their origin. 【Features】 ■ Long power outage compensation time, 20 minutes at rated load ■ Wide input voltage range (AC 85V to 264V) ■ Available in two types: external battery type and built-in battery type *For more details, please download the PDF or feel free to contact us.

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The "PBS Series" is a DC input AC output power supply that employs an insulated type DCDC converter in the boost section using a PWM inverter method. Through the RS-232C interface, it is possible to monitor input voltage, current, and output current. Customization options such as capacity and input voltage are also available, so please feel free to inquire. 【Features】 ■ Output waveform is a sine wave with a distortion rate of 3% or less ■ Output power supply frequency can be switched between 50Hz and 60Hz ■ RS-485 interface support is also available *For more details, please download the PDF or feel free to contact us.

• Testing Equipment and Devices

The "CV-CC Phase Variable Power Supply" is an AC power supply suitable for applying voltage and current to AC measuring instruments and for measuring and evaluating phase characteristics. It is composed of an AC variable voltage power supply and an AC variable current power supply, allowing simultaneous adjustment of the output frequency from 45 to 65 Hz and the output phase of the two power supplies from 0.0° to 359.9°. 【Features】 ■ Applies voltage and current for measuring and evaluating phase characteristics ■ Remote operation (adjustment of voltage, current, and phase) from external sources is possible *For more details, please download the PDF or feel free to contact us.

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The "PH1-200" is a 200VA AC stabilized power supply. In response to requests from the market, it features an analog meter and analog volume. The operation is simple with just four controls: "Frequency Switch," "Range Switch," "Output ON/OFF," and "Voltage Adjustment Volume." 【Features】 ■ Equipped with an analog meter and analog volume ■ Easy to operate ■ Follows a linear amplifier design ■ Low waveform distortion ■ Provides stable output against input voltage fluctuations and load variations *For more details, please refer to the catalog or feel free to contact us.

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The "TSL2 Series" is a high-frequency reactor primarily used for the removal of high-frequency components superimposed on circuit current, as well as for storing magnetic energy and controlling the rise and fall of circuit voltage. It is compact and lightweight, making it suitable for research and experimental applications, as well as for integration into devices. 【Features】 - Standardized high-frequency inductor as a core component - Short delivery time products - Compact and lightweight - Usable for research, experimental applications, and integration into devices - V-shaped types can also be manufactured *For more details, please refer to the catalog or feel free to contact us.

• Other electronic parts

The 'PH1-200' handled by Tokyo Seiden is a 200VA AC stabilized power supply that uses an analog meter and analog volume. The switches and knobs consist of only four types: frequency switch, range switch, output ON/OFF, and voltage adjustment volume, making it easy to operate! Since the power supply adopts a linear amplifier method, it has low waveform distortion and provides stable output against input voltage fluctuations and load variations. 【Features】 ■ Uses analog meter and analog volume ■ Easy operation with four knobs ■ Low waveform distortion ■ Stable against input voltage fluctuations and load variations ■ Capable of outputting 400Hz *For more details, please refer to the catalog or feel free to contact us.

• Power Supplies

Tokyo Seiden is at the core of power electronics technology, responding to customer needs through the fusion of our winding technology, circuit design, and mechanical design. We handle the design of power transformers and reactors, as well as circuits and sheet metal processing, all in-house. Power transformers, which are central to electronics products, achieve reliability, miniaturization, and high efficiency through our winding technology know-how accumulated over more than half a century. You can also rely on us for high current, high voltage, and high-frequency transformers. For more details, please download the catalog.

• LED lighting

The distributed generation system interconnection inverter has achieved miniaturization and high efficiency. It also ensures moisture resistance that can withstand JET certification tests. This power conversion device converts direct current generated from fuel cells and solar cells into alternating current and operates in conjunction with the commercial grid. Customization options, such as size, are available according to customer requirements. For more details, please download the catalog.

• Inverter

The DC broad power supply "CVCW Series" is an industry-first high-capacity 2000W model. The DC broad power supply can output without range switching within the rated output voltage. It can output 2000W in ranges such as 100A at 20V and 28.5A at 70V. Additionally, you can register a set of voltage and current settings as one group in three memory slots and recall them for use as needed. For more details, please download the catalog.

• Other power sources

The bidirectional insulated converter board is designed to accommodate rack mounting and includes an integrated isolation transformer. Additionally, various customizations in shape and other specifications are possible. We can support everything from circuit and mechanical design of power electronics products to component design, such as copper bars, and the final completion of the product. For more details, please download the catalog.

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The lithium-ion battery charger distinguishes between two types of lithium-ion batteries and performs suitable charging for multiple batteries simultaneously. It also has a built-in discharge circuit, allowing for battery degradation assessment. By combining microcontrollers and power supplies, various charging devices can be manufactured. It can also accommodate battery packs with high current and high voltage. We will propose the optimal design according to the customer's desired specifications. For more details, please download the catalog.

• Charger

The PWM AC power supply "CVFS-D series" adopts a PWM inverter method, achieving high efficiency and low cost as an AC stabilized power supply. It has a waveform shaping function, providing a stable sine wave with minimal waveform distortion, and can also be used as a frequency converter. It allows switching between three output patterns: single-phase two-wire, three-wire, and three-phase three-wire, and can also perform voltage conversion, making it usable as a three-in-one power supply. For more details, please download the catalog.

• Testing Equipment and Devices

Achieving compactness, lightweight design, and low noise 【Features】 ○ Enclosed in an aluminum case ○ Environmental stability performance ○ Realization of compact and lightweight design ○ Low noise ● For details, please contact us or download the catalog.

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Achieving quiet operation and suppression of indoor temperature rise 【Features】 ○ High quietness and suppression of indoor temperature rise. ○ High power three-phase load ○ Inductive and variable resistance ● For details, please contact us or download the catalog.

• Inductor Coil

Achieving low noise, high heat dissipation, and space-saving with flat angle vertical winding coils. 【Features】 ○ Low noise (due to reduced floating capacitance compared to multi-layer winding with round wire.) ○ High heat dissipation ○ Space-saving ● For other functions and details, please download the catalog or contact us.

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Voltage withstand tests based on various standards are possible! A voltage withstand tester that enhances the accuracy of tests with a variety of features. 【Features】 ○ Equipped with a lamp timer function ○ Contact check function to prevent incorrect pass judgments ○ Achieves stable output ○ Equipped with a memory function ○ The fluorescent display tube has excellent visibility and is very easy to read, allowing for quick confirmation of test status and results ○ Easy-to-use operation panel ○ Automatic testing function ○ Input voltage free ○ Interlock function ○ Standard equipped with external I/O, RS-232C, and GPIB ● For other features and details, please download the catalog.

• Testing Equipment and Devices

In the development field of inverters and converters, we have standardized high-frequency inductors as core components and made them available as products with short delivery times. 【Features】 ○ Please use them according to the inductance values and current values used by our customers, distinguishing between series and parallel configurations. ○ They are compact and lightweight, making them suitable for research and experimental applications, as well as for integration into devices. ○ We also offer separate support for aluminum case injection products with water cooling specifications. ● For more details, please contact us or download the catalog.

• Printed Circuit Board

This is a comprehensive catalog of power supplies, testing equipment, and transformers handled by Tokyo Seiden. We offer a variety of products tailored to different applications! We also accept orders for customized products based on customer requests. ◆◆ Contents ◆◆ - High-frequency power supply - Constant frequency constant current power supply - SCR type constant voltage power supply - Sliding type constant voltage power supply - High-efficiency constant frequency constant voltage power supply - Dielectric strength tester - Insulation dielectric strength tester - High-frequency dielectric strength tester - Compact single-phase power transformer - Cut core type power transformer - Single-phase and three-phase power transformers ● For other functions and details, please download the catalog.

• Testing Equipment and Devices

Supports a wide range of power input! A lightweight and compact body with excellent convenience for a constant frequency and constant voltage power supply. 【Features】 ○ Supports a wide range of power input: AC85-250V/47-400Hz ○ Easy-to-read digital display ○ Rich external control functions (GPIB, RS-232C, memory recall) ○ Up to 10 sets of output voltage, current, and frequency setting conditions can be stored in memory ○ Complies with harmonic regulations ○ High stability ○ Output current control is possible ○ Output voltage controlled to low distortion ○ Lightweight and compact ● For other functions and details, please download the catalog.

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