发明名称 |
Power factor boost converter power supply |
摘要 |
A boost-type power factor correction circuit is disclosed in which output voltage of the convertor is proportional to the peak input voltage. To achieve this, the circuit includes a peak rectifier D2, C2 which senses peak input voltage and provides a reference to which the output voltage derived through resistors R3, R4 is compared to give an error signal dependent upon variation from the peak input voltage derived reference. The error signal is used to control a MOSFET switch 120 to provide an output voltage Vout dependent upon the reference.
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申请公布号 |
US5349284(A) |
申请公布日期 |
1994.09.20 |
申请号 |
US19930126423 |
申请日期 |
1993.09.24 |
申请人 |
ASTEC INTERNATIONAL, LTD. |
发明人 |
WHITTLE, REX W. J. |
分类号 |
H02M1/00;H02M1/42;(IPC1-7):G05F1/70 |
主分类号 |
H02M1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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