DC-DC power converter including sensing means for providing an o

Details DC-DC power converter including sensing means for providing an o DC-DC power converter including sensing means for providing an o

1992-04-16

1994-02-22

Beha, Jr., William H.

Electric power conversion systems

Current conversion

Including d.c.-a.c.-d.c. converter

379324, 379413, H02H 3335, H04M 1900

Patent

active

052893596

ABSTRACT:
A DC to DC power converter in the form of a pulse-width modulator is shown which can sense via an indication of duty cycle how much reserve power is available for loads using the present input voltage. The device is for use at the end of a telephone line where the input voltage power supply impedance can be appreciable. When the reserve power, as detected in the power converter, reaches a minimum critical level, a signal is sent out requesting the voltage supply to increase the available voltage to the power converter.

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patent: 4961222 (1990-10-01), Johansson et al.
patent: 5144544 (1992-09-01), Jenneve et al.

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