发明名称 |
Current sense circuit |
摘要 |
A current sense circuit includes a current sense device and a voltage sense device. The current sense device is positioned to sense a drive current provided to a load by a drive circuit. The voltage sense device is coupled across the current sense device and receives a variable threshold signal at a first input and provides an output signal on an output whose value is dependent upon whether a sense signal at a second input is above or below the variable threshold signal. A level of the variable threshold signal changes in response to a voltage level of a power supply that supplies the drive current to the drive circuit.
|
申请公布号 |
US2003086229(A1) |
申请公布日期 |
2003.05.08 |
申请号 |
US20010008291 |
申请日期 |
2001.11.08 |
申请人 |
POE G BRUCE;TURNBULL ROBERT R |
发明人 |
POE G. BRUCE;TURNBULL ROBERT R. |
分类号 |
H02H3/00;H02H3/087;(IPC1-7):H02H3/08;H02H9/02 |
主分类号 |
H02H3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|