发明名称 |
Zero generator for voltage regulators |
摘要 |
A circuit for providing an improved "feed forward" zero in a feedback loop such that the zero has a frequency dependent on the transconductance (gm) of a common gate transistor, and pole and zero separation that is dependent on a multiple of the gm. The circuit includes an error amplifier and a compensation circuit. The compensation circuit provides a first feedback current and a second feedback current. The error amplifier receives a reference signal and a feedback signal. The feedback signal is provided by summing the first feedback current and the second feedback current.
|
申请公布号 |
US7659703(B1) |
申请公布日期 |
2010.02.09 |
申请号 |
US20050251483 |
申请日期 |
2005.10.14 |
申请人 |
NATIONAL SEMICONDUCTOR CORPORATION |
发明人 |
FESLER ROBERT ERIC;SONG CHUNPING |
分类号 |
G05F1/00 |
主分类号 |
G05F1/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|