发明名称 |
Link regulator with feed forward switching control |
摘要 |
A link regulator is disclosed for providing a regulated voltage over a wide range of input frequencies and load currents. The frequency of an internal VCO and the input frequency are phase compared to provide a reference error signal. The unregulated DC voltage is integrated for a duration proportional to the error signal. This duration controls a series switching element to provide a constant volts/seconds. The output of the series switching element is filtered to a DC voltage that controls the frequency of the VCO. The DC voltage is proportional to the error signal, thus providing a feed forward system to regulate the DC voltage. During the period when the series switching element is not conducting, a shunt switch presents a low impedance to the input of the filter to clamp the input to ground. This allows for operation over a wide range of load currents without losing regulation.
|
申请公布号 |
US4458199(A) |
申请公布日期 |
1984.07.03 |
申请号 |
US19820345669 |
申请日期 |
1982.02.04 |
申请人 |
VARO, INC. |
发明人 |
EVANS, WILLIAM E.;GILLETT, JIMMIE D. |
分类号 |
H02M3/156;(IPC1-7):G05F1/46 |
主分类号 |
H02M3/156 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|