カイロスキ List of Products and Services

- Long lifespan with EDLC adoption - Capable of high power charge and discharge - No use of heavy metals, environmentally friendly - Low risk of failure - Customizable due to in-house development - Small lot support available from 50 units - Can be integrated into the enclosure with DC input With a low risk of failure and safe circuit design entrusted to Kairoski, you can use it with confidence.

• Other power sources
• power supply
• Other safety equipment

【Examples of solvable issues】 ■ Development of circuits that handle weak voltages and currents from sensors (μA/μV～) ■ We want to configure circuits using sensors/fine signals such as photodiodes, strain gauges, thermocouples, and flow meters in our products. ■ We want to implement noise countermeasures and achieve high-precision output due to handling weak voltages/currents. ■ We would like to consult with a development company that has a certain level of knowledge and experience in specific specialized fields. * Kairoski has a proven track record in various industries. Please feel free to contact us.

• Sensors
• Sensors

We have expertise in high-reliability power supplies, high-voltage power supplies, and high-efficiency power supplies. We have extensive experience in the control and driver development of brushless motors and stepping motors! **Examples of problems we can solve:** - We want to verify the current circuit during development and improve reliability as much as possible. - To shorten the development period, we want to enhance the completeness of the prototype PCB as much as possible. - We want to address circuit configuration, PCB noise countermeasures, and thermal countermeasures as much as possible. - We would like to consult about troubleshooting related to analog circuits and their countermeasures. - We want to connect with a circuit design company that has development experience, knowledge, and theories in various industries. And more... *For more details, please refer to the PDF document or feel free to contact us. *This information is as of January 2023.

• power supply
• Sensors
• Other power sources

We will fully support the [restoration and reproduction] of various issues such as [absence of developers], [lack of drawings due to old development products], and [concerns about supply due to overseas procurement]. [Kaeroski's Achievements] With over 250 circuit development (board development) projects in the past 7 years, we have identified issues and proposed countermeasures through noise, heat, and EOL measures, as well as verification against Kaeroski standards. Based on this knowledge, we will assist with reverse engineering of boards without drawings, in the absence of developers, and outsourced boards. If you fall into any of the following categories, we believe we can help: - Developed in-house several decades ago, but renewal is necessary for performance improvement/EOL measures. There are no remaining documents and we would like support from a knowledgeable company. - We want to analyze an (in-house) board without a developer, create drawings, leave design evidence, and conduct verification and improvement discussions regarding functionality and reliability. - We want to develop a board that has been procured overseas in-house. - Due to company growth, we are lacking development resources. We would like our engineers to lead the development (reverse engineering) support. And so on.

• Printed Circuit Board
• Circuit board design and manufacturing

Through circuit board technology, we were able to significantly reduce costs, labor, and size by reducing the number of components and then creating the circuit board. Reduction examples: wiring labor by 70%, size by 75%, and component costs by 20%. Key points when creating a circuit board: While it is possible to reduce size and labor by creating a circuit board with the same functionality, it is also possible to significantly slim down by breaking down the functions one by one and minimizing the necessary components. Of course, we consider the scalability of functions and future risks, conducting hearings with customers to make proposals. Therefore, in some cases, it may be better not to create a circuit board for areas with high scalability. While we cannot completely predict issues such as component shortages or discontinued parts, we can provide advice on inventory management based on trends. As an example of our proposals: - Optimization of power capacity components according to the current-carrying parts (using large-capacity components in small-capacity areas) - Optimization of functional components (for instance, replacing two component functions with one component) It is not uncommon for new products to be launched that did not previously exist as components on circuit boards. Please feel free to consult with Kairoski, specialists in circuit board components.

• power supply
• relay
• Control Panel

The "Board Inspection" by Kairoski is a full-node inspection conducted from the perspective of an analog circuit designer before the actual prototype of the board is made, to determine whether the layout is "ideal" and whether adequate risk mitigation measures have been implemented as much as possible. Through the board inspection, we can propose ways to enhance the reliability of the equipment, such as noise reduction and heat generation reduction. Of course, there are aspects that can only be understood through prototyping and actual verification, but by taking preemptive measures on points that are likely to have a significant impact, we support efforts to "reduce revisions" and "create reliable and competitive products." [Development Achievements] *Approximately 300 projects over 8 years! - Power circuits - Power electronics (motor drive circuits) - Power sections of small to medium-sized devices manufactured in-house - Drones - Flying cars - Power and charging (including non-contact) for entertainment devices, as well as power distribution - Analysis of operating conditions and feedback circuits Currently, we are also running a limited-time "Free Inspection Campaign"! Please check our company website's campaign or the catalog on our Ipros company page for more information.

• power supply

■Verification Record List ■Verification Record Document ■De-rating Table ■Temperature Verification *For more details, please refer to the PDF materials or feel free to contact us.*

• Circuit board design and manufacturing
• Other contract services

**Detailed PCB Design Specification Document to Accurately Convey the Intent of the Circuit Designer** When requesting PCB design, we create many drawings to ensure that the "intent of the circuit designer" is accurately conveyed. ■ PCB Design Specification Document ■ AW Considerations ■ Outline Drawing ■ Pattern Width and GAP Instruction Drawing ■ Block Instruction Drawing **Ideal Layout and Wiring, Full Node Inspection** ■ Component Placement Inspection We check the completed component placement diagram to ensure there are no issues with the placement of each component. The connection distances for power, power supply, and analog circuits are particularly important. We identify any problematic areas and work towards an ideal layout. ■ Pattern Inspection We conduct a full node inspection on the completed pattern diagram. We verify the routing of each wire and consider whether there are more ideal wiring methods available. *For more details, please refer to the PDF document or feel free to contact us.*

• Circuit board design and manufacturing
• Other contract services

【Issues / Results】 ■ I want to control 31 units collectively via serial communication. 　→ Supports collective control of up to 31 units via RS485. ■ I want to control two types of 15W/40W motors from different manufacturers with a single circuit board. 　→ Supports two types of motors with different conditions by parameter adjustment, with just a DSW switch. ■ I want to reduce heat generation. 　→ Adopts NchFET three-phase bridge circuit. Built-in ideal diode circuit. Eliminates the need for a heat sink due to improved efficiency. ■ I want to make it more compact. 　→ Can be stacked at half the height. Eliminates the need for a heat sink due to improved efficiency. Sized to fit a business card. ■ I want to improve controllability. 　→ Improved controllability through a unique control algorithm. Built-in regenerative circuit with four-quadrant rectangular wave drive. ■ I want to reduce costs. 　→ Cost reduction for the system as heat dissipation components like fans become unnecessary due to improved efficiency. *For more details, please refer to the PDF document or feel free to contact us.

• Drive system parts

【Issues / Results】 ■ We want to create a PCB for PLC, relay, and timer sequence circuits. → Control is realized using a low-cost CPU (RL78). ■ We want to improve the flexibility of setting changes. → Settings can be changed via PC connection. ■ We want to make it vibration-resistant and simply waterproof. → Compatible with urethane potting. Vibration resistance up to 5G. ■ We want to reduce space. → Achieved a volume ratio of approximately 1/3. ■ We want to reduce costs. → Successfully reduced costs for timers, relays, bracket LEDs, and internal wiring. *For more details, please refer to the PDF document or feel free to contact us.

• Control Panel

【Issues / Results】 ■ The design quality of existing products is poor (1/3 have operational failures) 　→ Analyze existing products, extract issues, and create a new design. ■ High noise levels 　→ Identified the cause as control jitter, improved the control phase loop. Added slits to the circuit board and improved the gap. Reduced leakage current. ■ Want to change the output voltage 　→ Use transformer feedback winding for output voltage feedback control. ■ Want to support ±5KV and 10KV specifications on the same circuit board 　→ Design patterns to accommodate both specifications. ■ Want to add a DC400V power supply on the same circuit board 　→ Addressed considering noise and gap. *For more details, please refer to the PDF document or feel free to contact us.

• power supply
• power supply

【Issues / Results】 ■ The mainstream Qi standard cannot achieve more than 5W 　→ Independently developed a 30W type aimed at medium capacity. ■ A transmission distance of 20mm is desired 　→ Tuned the resonant capacitor and frequency to accommodate a 20mm gap. ■ It takes 5 seconds to start with other manufacturers' products 　→ Achieved a startup time of 0.3 seconds. ■ I want it to stop automatically 　→ Safely stops power transmission during abnormal conditions or when the receiving coil is not found. Reduces reactive power and minimizes the risk of magnetic interference. *For more details, please refer to the PDF document or feel free to contact us.

• Circuit board design and manufacturing

The "OZ-S" is an ozone generation substrate that produces low-concentration ozone using a high-voltage power supply. It is expected to have sterilization and deodorization effects!! Successful digital control with a microcontroller! Management operation via communication is also possible!! 【Challenges / Results】 ■ I want to control the amount of ozone generated. → Control of output voltage through voltage feedback and time division control using a microcontroller. ■ I want to control the amount of ozone generated. → Compatible with a wide variety of power supplies, including mobile batteries and automotive power sources. ■ I want to improve reliability and reduce size. → Achieved improved reliability and miniaturization of the substrate through urethane potting. ■ I want it to operate when no one is around. → It is also possible to operate when no one is present by coordinating with sensors. *For more details, please refer to the PDF document or feel free to contact us.

• Circuit board design and manufacturing
• Ozone Generator

------This is how it can be used------ - Detect material shortages and replenish immediately - Notice equipment abnormalities faster than customers and respond quickly - Can also be applied for security purposes. Quickly alert for leakage or intruders for peace of mind and safety *For more details, please refer to the PDF document or feel free to contact us.

• Email/Fax transmission
• Other embedded systems (software and hardware)
• Other electronic parts

Our company specializes in the design, development, and manufacturing of control circuit equipment. We have numerous achievements particularly in areas necessary for control, such as drive, feedback, computation, power supply, display, operation, and interface. By enhancing safety, performance, and reliability, we strive to ensure that our customers can use our products with greater peace of mind. Please feel free to consult us with any requests. 【Business Areas】 ■ Circuit Design ■ PCB Design ■ Software Development ■ Analysis and Consulting ■ Verification, Evaluation, and Testing ■ Enclosure Design and Manufacturing *For more details, please download the PDF or feel free to contact us.

• Circuit board design and manufacturing
• Control Panel
• Other process controls