Adjustable Power Supply Circuit of IR2111

Published:2011/7/17 5:34:00 Author:Michel | Keyword: Adjustable Power Supply Circuit | From:SeekIC

The adjustable power supply circuit of IR2111 is shown as above.In the circuit,IR2111 adopts VD3 and C1 to generate the boost voltage which is more than 12V.Thus it is not necessary to use high grade driving power supply.AC11OV turns into 140V DC voltage after VDB rectifying and it drops to 24V after flowing through VT1 and VD1.And then it provides 12V voltage for IR2111 after flowing through three ports regulator 7812. PWM output of half bridge switch power supply turns into DC voltage Ui via smooth induction and capacitance and it is added to port 2 and 3 of TLP559.



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