UIC1WGEVB: Low Cost Universal AC Input LED Circuit Evaluation Board

The UIC1WGEVB evaluation board showcases a simple, low cost, low part count chopper topology circuit. It is designed to safely operate with input voltages varying from 80 VAC to 280 VAC. ON Semiconductor CCRs are used to provide constant LED current and to protect LEDs from over-voltage conditions.

This circuit uses active switching to change how the load is being driven. The LED load will either be driven from the capacitor, C1, discharging, or directly from the AC source. The CCR ensures a constant current through the LED throughout all modes of operation. The switching point of the circuit may be changed by varying the resistor, R1. Changing this switching point will change the amount of time the capacitor is charging. If a higher power output is desired a higher current CCR can be used and the switching point will need to be changed. A metal oxide varistor and fuse are designed into the circuit for surge protection purposes.

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产品 状况 Compliance 简短说明 所用产品 行动
UIC1WGEVB Active
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Low Cost Universal AC Input LED Circuit Evaluation Board DBB08G-TM-E MMBT3906LT1G
MMBT6520LT1G MMSZ5270BT1G
NSIC2020JBT3G PZTA96ST1G
技术文档
类型 文档标题 文档编号/大小 修订号
Design Notes Low Cost Universal Input AC LED Circuit DN05087/D - 554 KB  0 
Eval Board: Test Procedure UIC1WGEVB Test Procedure UIC1WGEVB_TEST_PROCEDURE.pdf - 152 KB  0 
Eval Board: Schematic UIC1WGEVB Schematic UIC1WGEVB_SCHEMATIC.pdf - 46 KB  0 
Eval Board: Gerber UIC1WGEVB Gerber Layout Files (Zip Format) UIC1WGEVB_GERBERS.zip - 12 KB  0 
Eval Board: BOM UIC1WGEVB Bill of Materials UIC1WGEVB_BOM_ROHS.pdf - 37 KB  0 
Video Low Cost Universal AC Input LED Circuit Evaluation Board - UIC1WGEVB WVD17600/D   
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Low Cost Universal AC Input LED Circuit Evaluation Board - UIC1WGEVB
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