Control circuit responsive to an impedance

Details Control circuit responsive to an impedance Control circuit responsive to an impedance

2006-10-04

2009-08-18

Riley, Shawn (Department: 2838)

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

Reexamination Certificate

active

07576528

ABSTRACT:
A power supply controller measuring impedance includes a sense circuit coupled to a sense terminal. A regulation circuit is coupled to the sense circuit and is also coupled to regulate the sense terminal to a first voltage level when a current flowing through the sense terminal is less than a first threshold current level. The regulation circuit is further coupled to regulate the sense terminal to a second voltage level when the current flowing through the sense terminal reaches the first threshold current level. A response circuit is coupled to the sense circuit and is responsive to the current flowing through the sense terminal when the sense terminal is regulated at the second voltage level.

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