Detection circuit

Details Detection circuit Detection circuit

2011-02-22

2011-02-22

Patel, Rajnikant B (Department: 2838)

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

C323S299000, C323S906000

Reexamination Certificate

active

07894221

ABSTRACT:
A detection circuit for generating a control signal for controlling output voltage of an AC adapter. The detection circuit for an electronic device receives power information from an external power supply via a cable to generate the control signal that controls DC input voltage output from the external power supply. In the detection circuit, a correction voltage generation circuit generates a correction voltage in correspondence with the parasitic resistance of the cable. A power information correction circuit corrects the power information provided from the external power supply via the cable with the correction voltage to generate corrected power information. A detection signal generation circuit calculates the total power amount of the electronic device and generates a power detection signal corresponding to the total power amount. The control signal generation circuit generates the control signal based on the corrected power information and the power detection signal.

REFERENCES:
patent: 5682305 (1997-10-01), Kurokami et al.
patent: 3428955 (2003-05-01), None

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