发明名称 |
Current control/power limiter circuit |
摘要 |
An analog circuit provides selectable current control and power limiting for a connected load. A current control loop is combined with a voltage/power control loop to generate a current level signal via an output transistor to control current flow through a load. Current through a load is monitored with the current control loop maintaining current flow through the load at a selected value. If a selected power level is exceeded, the current is reduced by the voltage/power control loop. Voltage monitoring and feedback is used to control the operating power for a power level control operational amplifier and thereby maintain a selected power level. By providing multiple, voltage dependent gains in the voltage feedback loop, a piecewise linear approximation of a desired power curve can be obtained.
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申请公布号 |
US5264781(A) |
申请公布日期 |
1993.11.23 |
申请号 |
US19920846139 |
申请日期 |
1992.03.05 |
申请人 |
FORD MOTOR COMPANY |
发明人 |
MILLER, JOHN M.;SPRING, HAROLD G. |
分类号 |
G05F1/573;G05F1/575;(IPC1-7):G05F1/40 |
主分类号 |
G05F1/573 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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