TCPCU-1 TCPCU-1
TCPCU-1 TCPCU-1
當Q4獲得正常工作電壓后,Q4受控起振、振蕩器的振蕩頻率范圍為100HZ—500kHZ。振蕩脈沖經整形及放大后由Q4⑥腳輸出經R4加至開關管Q1的柵極G。控制Q1是處于導通狀態還是處于截止狀態。當Q4輸出的脈沖為上升沿時,Q1處于導通狀態,高頻變壓器B儲存能量。當Q4輸出的脈沖為下降沿時,Q1處于截止狀態,此時高頻變壓器釋放能量,在B的次級多繞組線圈中產生感應電動勢。
3 輸出電路
輸出電路由B的次級繞組線圈⑤—⑥、⑦—⑧、⑨—⑩及T5—T10整流管和各濾波電容組成。
變壓器B的次級各繞組線圈產生的感應電壓,由整流管整流后,經濾波電容器濾波組輸出直流電壓。各繞組輸出不同值的直流電壓供設備負載用。
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