在100mA下，+12 V输入转换器生成在 - 165V

上述电路产生- 165V 100mA时从+12 V输入。基于MAX668变压器反激应用上，该电路采用一个定制的变压器匝数比和占空比组合产生165V通过。 SG5型，大小骨架以方便绕组和减少漏感变压器的设计。
Maxim > App Notes > AUTOMOTIVE POWER-SUPPLY CIRCUITS

Keywords: +12V Input Converter Generates -165V at 100mA Nov 01, 2000

APPLICATION NOTE 435
+12V Input Converter Generates -165V at 100mA
Additional Information:


q Quick View Data Sheet for the MAX668
q Quick View Data Sheet for the MAX4130
q Technical Support: Power




This circuit uses the MAX668 and a transformer (which will need about a one-to-six turns ratio) to make a
flyback converter. The op amp inverts the feedback from the negative output voltage.

The above circuit generates -165V at 100mA from a +12V input. Based on a MAX668 transformer flyback
application, the circuit employs a custom transformer to generate -165V through a combination of turns ratio
and