发明名称 |
VOLTAGE REGULATOR CIRCUIT |
摘要 |
The performance of the main regulatory transistor of an on-chip voltage regulator circuit is enhanced when the main transistor is appropriately biased during start up. In an example embodiment, a voltage regulator circuit includes a thin gate oxide transistor as the main regulatory transistor and an operational amplifier that is referenced to a midlevel operating voltage. During start-up, the potential voltage difference is large enough to necessitate the disconnection of the main transistor from the operational amplifier. A voltage divider ladder circuit is used to maintain the gate voltage of the main transistor at the midlevel voltage while a smaller thick gate oxide transistor is used to maintain loop stability and to withstand voltage transients. |
申请公布号 |
WO0192977(A3) |
申请公布日期 |
2002.06.13 |
申请号 |
WO2001US14543 |
申请日期 |
2001.05.07 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V.;PHILIPS SEMICONDUCTORS, INC. |
发明人 |
PATTAMATTA, SRINIVAS;TA, PAUL |
分类号 |
G05F1/10;G05F1/46;G05F1/56;G05F1/575;H03F3/345;H03F3/347 |
主分类号 |
G05F1/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|