Phase-difference synchronization controlling circuit of parallel

Details Phase-difference synchronization controlling circuit of parallel Phase-difference synchronization controlling circuit of parallel

1993-05-20

1994-11-29

Stephan, Steven L.

Electric power conversion systems

Current conversion

Having plural converters for single conversion

H02M 3335

Patent

active

053695640

ABSTRACT:
A power circuit of SMPS (Switching Mode Power Supply) is disclosed. Particularly, a phase-difference synchronization controlling circuit of a power circuit for operating in parallel two or more SMPSs is disclosed. The phase-difference synchronization controlling circuit comprises a first PWM controller, a second PWM controller, phase-difference synchronization controlling means connected between an output terminal of the first PWM controller and an output control terminal of the second PWM controller, first and second transformers whose one-sided ends of respective primary windings are connected to a supply voltage Vdc, and first and second switching transistors and coupled between the first and second transformers and a ground. By the above constitution, the output phases of two power circuits are synchronized, and at the same time, PWM pulses are alternatively outputted with a phase difference of 180.degree., so that two power supplies can be operated in parallel with DC power source supplied from a power source supplier of small capacity.

REFERENCES:
patent: 4661897 (1987-04-01), Pitel
patent: 4825144 (1989-04-01), Alberkrack et al.
patent: 5008795 (1991-04-01), Parsley et al.
patent: 5130561 (1992-07-01), Elliott et al.
patent: 5142468 (1992-08-01), Nerem

Affiliated with

Also associated with

Rating

Phase-difference synchronization controlling circuit of parallel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase-difference synchronization controlling circuit of parallel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase-difference synchronization controlling circuit of parallel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-77656