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[Data] Shirutoku Report No. 42 #Design of Switching Power Supplies

[Data] Shirutoku Report No. 42 #Design of Switching Power Supplies

High efficiency and miniaturization are possible! Designing switching power supplies requires expertise.

★★Shirutoku Report: Useful Information You Should Know★★ The power supply circuits handled by the Power Supply Design Department come in various circuit configurations, but they can largely be classified as switching power supplies. In this report, we will discuss the characteristics of switching power supplies. For more details, please take a moment to read through it. 【Contents】 ■ Advantages ■ Disadvantages *For more information, please refer to the PDF document or feel free to contact us.*

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[Information] Shirutoku Report No. 48 #Features of Switching Power Supply Circuit Method

[Information] Shirutoku Report No. 48 #Features of Switching Power Supply Circuit Method

Introducing circuit diagrams and features of isolated switching power supplies, such as forward and flyback methods!

★★Useful Information Report: Knowledge is Beneficial★★ This report introduces representative methods of isolated switching power supplies that use transformers among the circuit configurations of switching power supplies. It includes circuit diagrams and features of the Forward method, Flyback method, Push-Pull method, and Full Bridge method. Please take a moment to read it. [Contents] ■ Forward Method ■ Flyback Method ■ Push-Pull Method ■ Full Bridge Method *For more details, please refer to the PDF document or feel free to contact us.

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[Data] Shirutoku Report No. 85 # Power Control Methods and LED Driving

[Data] Shirutoku Report No. 85 # Power Control Methods and LED Driving

LED lighting can control the amount of light through current! Its characteristic is the ability to achieve a wide range of dimming.

★★Shirutoku Report: Useful Information You Can Benefit From★★ I am engaged in power supply circuit design and encounter a wide variety of power supplies on a daily basis. There are various control methods for power supplies, but the two most commonly seen are: (1) Constant voltage power supplies that control to maintain a constant voltage value (2) Constant current power supplies that control to maintain a constant current value This time, I would like to talk about (2) constant current power supplies. [Contents] ■1. (Pseudo) Constant current driving of LEDs using constant voltage power supplies ■2. Constant current driving of LEDs *For more details, please refer to the PDF document or feel free to contact us.

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[Data] Shirutoku Report No. 60 # Evaluation and Testing Items for Switching Power Supplies

[Data] Shirutoku Report No. 60 # Evaluation and Testing Items for Switching Power Supplies

Supports testing according to various standards such as certification. We will introduce the main evaluation and testing items for switching power supplies and their implementation details.

★★Shirutoku Report: Useful Information You Should Know★★ This report introduces the electrical evaluation related to switching power supplies. The evaluation of power circuits features a lot of content that confirms whether they can operate safely (i.e., whether there are any hazards). There are also specific aspects that may be unfamiliar to those not involved in power supply design or evaluation, so I would like to take this opportunity to explain them. 【Contents】 ■Electrical Characteristics Evaluation ■Component Rating Confirmation ■Abnormal Testing ■Temperature Rise Testing ■Immunity Testing ■Reliability Testing *For more details, please refer to the PDF document or feel free to contact us.

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[Data] Shirutoku Report No. 67 #Method of Controlling Ballast Electricity

[Data] Shirutoku Report No. 67 #Method of Controlling Ballast Electricity

To keep the lamp lit stably, it is necessary to control the power output according to the condition of the lamp!

★★Shirutoku Report: Useful Information You Should Know★★ This report introduces the features of ballast power control. The ballast power supply refers to a device that stabilizes the discharge state of lamps, which are light sources such as car headlights and LCD projectors. Unlike general power supplies that control with constant voltage or constant current, to keep the lamp lit stably, it is necessary to understand the lighting characteristics of each type of lamp and control the power output according to the lamp's state. 【Contents Included】 ■ Example of lighting characteristics of ultra-high pressure mercury lamps used in LCD projectors ■ Fast control is required ■ Emits light at the necessary brightness ■ Control of the switching operation itself *For more details, please refer to the PDF document or feel free to contact us.

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