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GND

VREF. EA+. 20k. EA+ へネガティブフィードバック . Negative feedback to EA+ COMP と EA- は ショート して 内部アンプはバッファと して 使用する COMP pin and EA- pin is connected, Inside amplifier is used for buffer. 10 0k. 18 0k. GND. UCC28950. 誤差増幅回路とデューティ制限回路を追加 する Add an error amp curcuit and duty a limiting curcuit.

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GND

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  1. VREF EA+ 20k EA+へネガティブフィードバック. Negative feedback to EA+ COMPとEA-はショートして 内部アンプはバッファとして使用する COMP pin and EA- pin is connected, Inside amplifier is used for buffer. 100k 180k GND

  2. UCC28950 誤差増幅回路とデューティ制限回路を追加する Add an error amp curcuit and duty a limiting curcuit IC内部の誤差アンプは、バッファとして使用する。 Inside error amp is using buffer. 定電流回路 Constant current curcuit 誤差増幅回路 Error amp curcuit デューティ制限回路 Duty limiting curcuit シャントRegは±1%品を使用する Shunt regulator should be used +/- 1% accuracy.

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