Electricity: power supply or regulation systems – In shunt with source or load – Using choke and switch across source
Patent
1995-01-05
1996-05-21
Nguyen, Matthew V.
Electricity: power supply or regulation systems
In shunt with source or load
Using choke and switch across source
323285, G05F 110, G05F 140
Patent
active
055193072
ABSTRACT:
A DC/DC converter for supplying a plurality of direct-current output voltages using a single pulse-width-modulator. A voltage regulator in the DC/DC converter comprises first and second switch elements, a pulse width modulator for generating a switching signal to control the switching of the first switch element, an inductor the generation and the collapse of the magnetic field thereof being controlled by selective conduction of the first switch element, and a capacitor charged with current supplied in response to the collapse of the magnetic field of the inductor as conducted thereto by selective conduction of the second switch element. The level of output voltage from the voltage regulator means is sensed to generate a control voltage, applied through output feedback circuitry for cutting off the generation and the collapse of the magnetic field of said inductor responsive to the control signal indicating that the level of the output voltage exceeds a prescribed value, thus to regulate the amount of charge supplied to the capacitor in response to the switching signal generated by the pulse width modulator. The output feedback circuitry includes first and second transistors that are connected by Darlington method with a base electrode of the first transistor having an emitter electrode of the second transistor connected thereto, with a base electrode of the second transistor connected to receive the control voltage, with an emitter electrode of the first transistor connected to receive the switching signal generated by the pulse width modulator, and with an interconnection of the collector electrodes of the first and second transistors connected to the first switch element for controlling the selective conduction thereof.
REFERENCES:
patent: 4311954 (1982-01-01), Capel
patent: 4536700 (1985-08-01), Bello et al.
patent: 4542330 (1985-09-01), Terbrack
patent: 4987361 (1991-01-01), Ohms
patent: 5341085 (1994-08-01), Ettes
patent: 5349284 (1994-09-01), Whittle
Nguyen Matthew V.
Samsung Electronics Co,. Ltd.
LandOfFree
DC/DC converter for outputting multiple signals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with DC/DC converter for outputting multiple signals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DC/DC converter for outputting multiple signals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2040575