Transformer-isolated pulse drive circuit

Details Transformer-isolated pulse drive circuit Transformer-isolated pulse drive circuit

1996-12-03

1998-07-28

Sterrett, Jeffrey L.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323351, G05F 1575

Patent

active

057866872

ABSTRACT:
In a computer having switch-mode power converter, a pulse transformer circuit drives the converter's transistor switch in response to pulses from a switch control pulse source. A primary capacitor is connected in series with the switch control pulse source and the transformer's primary winding. At the leading edge of a switch control pulse, the primary capacitor causes a positive voltage spike to appear across the primary winding and hence a positive voltage spike to be induced across the transformer's secondary winding. At the trailing edge of the switch control pulse, the primary capacitor causes a negative voltage spike to appear across the primary winding and hence a negative voltage spike to be induced across the transformer's secondary winding. The induced positive voltage spike causes a driver to activate the transistor switch and maintain the activation of the transistor switch until an induced negative voltage spike, and the induced negative voltage spike causes the driver to discharge the transistor switch.

REFERENCES:
patent: 3805094 (1974-04-01), Orlando
patent: 4349752 (1982-09-01), Forte
patent: 4443719 (1984-04-01), Planer et al.
patent: 4634903 (1987-01-01), Montorfano
patent: 4937722 (1990-06-01), Deierlein
patent: 4947311 (1990-08-01), Peterson
patent: 4967101 (1990-10-01), Nakamura et al.
patent: 5138515 (1992-08-01), Bourgeois

Affiliated with

Also associated with

Rating

Transformer-isolated pulse drive 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 Transformer-isolated pulse drive circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transformer-isolated pulse drive circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-25651