Snubber circuit for an inverter having inductively coupled resis

Details Snubber circuit for an inverter having inductively coupled resis Snubber circuit for an inverter having inductively coupled resis

1999-10-01

2000-12-26

Nguyen, Matthew

Electric power conversion systems

Current conversion

Including automatic or integral protection means

H02H 7122

Patent

active

061669334

ABSTRACT:
A snubber circuit is disclosed having a pair of series connected switches, each switch having a capacitor in parallel with the switch. The snubber circuit includes a coupling element, such as a coil winding, or air-core transformer, in close proximity to a branch circuit having the capacitor therein. The coupling element is connected to a resistor and inductively couples the resistor in series with the capacitor in the branch circuit. The resistor is preferably located remotely from the capacitor. Therefore, a relatively high value, high power-rated resistor can be inductively coupled by the coupling element into the branch circuit in series with the capacitor without introducing additional inductance into the branch circuit. The invention is particularly useful in physically constricted snubber circuit arrangements and permits the use of readily available discrete resistors with the desired power rating to obtain the desired equivalent induced resistance. The snubber circuit effectively reduces oscillations that are caused by the switching of the switches in the snubber circuit.

REFERENCES:
patent: 3675110 (1972-07-01), Kelly, Jr.
patent: 4561046 (1985-12-01), Kuster
patent: 4760512 (1988-07-01), Loftus
patent: 4899270 (1990-02-01), Bond
patent: 5055990 (1991-10-01), Miki et al.
patent: 5130917 (1992-07-01), Shekhawat
patent: 5548503 (1996-08-01), Motonobu
patent: 5633579 (1997-05-01), Kim
patent: 5745353 (1998-04-01), Sato et al.
patent: 5923547 (1999-07-01), Mao
patent: 5986904 (1999-11-01), Jacobs et al.

Affiliated with

Also associated with

Rating

Snubber circuit for an inverter having inductively coupled resis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Snubber circuit for an inverter having inductively coupled resis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Snubber circuit for an inverter having inductively coupled resis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1002104