Electric power conversion systems – Current conversion – Including automatic or integral protection means
Patent
1984-05-17
1986-12-02
Salce, Patrick R.
Electric power conversion systems
Current conversion
Including automatic or integral protection means
363132, H02M 7537
Patent
active
046269800
ABSTRACT:
A non-dissipative snubber circuit for use in a power bridge circuit having a pair of switching power transistors for controllably coupling pulses of electrical current in opposite directions through the primary winding of a power transformer, to generate a 60 hertz ac power signal. The snubber circuit includes a separate snubber capacitor shunting each transistor, with the current flowing through the transformer's primary winding being diverted to charge one of the snubber capacitors each time the associated transistor is switched off. When the transistor is again switched on, the capacitor is reinitialized by discharging it through an inductor. In a half-bridge configuration, the discharge current is directed to a fixed reference node at the opposite side of the transformer's primary winding, whereas in a full-bridge configuration, the discharge current is used to discharge a separate snubber capacitor shunting one of two additional switching power transistors connected to the opposite side of the primary winding.
REFERENCES:
patent: 3729655 (1973-04-01), Gratzke
patent: 3750003 (1973-07-01), Petersen et al.
patent: 4015185 (1977-03-01), Pollmeier
patent: 4016482 (1977-04-01), Cielo et al.
patent: 4063306 (1977-12-01), Perkins et al.
patent: 4167776 (1979-09-01), Nygaard
patent: 4276588 (1981-06-01), McLyman et al.
patent: 4334254 (1982-06-01), Baker et al.
patent: 4336587 (1982-06-01), Boettcher, Jr. et al.
patent: 4370701 (1983-01-01), Western
patent: 4403269 (1983-09-01), Carroll
patent: 4432032 (1984-02-01), Baker et al.
patent: 4488058 (1984-12-01), Cheffer
Golden Larry I.
Guttman Richard T.
Rebsch D. L.
Salce Patrick R.
Square D Company
LandOfFree
Power bridge having a non-dissipative snubber circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power bridge having a non-dissipative snubber circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power bridge having a non-dissipative snubber circuit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2296931