发明名称 |
An improved apparatus for current pulse generation in voltage down converters |
摘要 |
A voltage converter circuit for an electronic device includes a transistor switch (140) for providing current pulses to a current input node. The transistor switch has a gate (128) and a turn-on threshold voltage. An adjustment circuit (114) provides a controlled voltage to the gate for turning on the transistor switch and the adjustment circuit includes a subcircuit for compensating for variations in the turn-on threshold voltage of the transistor switch. A timer (16) for enables the adjustment circuit for a preset period of time. <IMAGE> |
申请公布号 |
EP0905898(A3) |
申请公布日期 |
1999.12.15 |
申请号 |
EP19980112919 |
申请日期 |
1998.07.11 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
WEINFURTNER, OLIVER |
分类号 |
G05F1/56;G05F1/46;G11C5/14;H03K17/06 |
主分类号 |
G05F1/56 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|