Neutral point clamped converter

Details Neutral point clamped converter Neutral point clamped converter

1997-05-28

1999-09-14

Sterrett, Jeffrey

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363132, H02M 7122

Patent

active

059532220

ABSTRACT:
A switching module, including a first self-turn-off device, a second self-turn-off device connected in series with the first self-turn-off device, a first diode connected in antiparallel with the first self-turn-off device, a second diode connected in antiparallel with the second self-turn-off device, and a third diode with its cathode connected to a connecting point of the first and second self-turn-off devices. The switching module further includes a first external terminal connected to a positive side terminal of the first self-turn-off device, a second external terminal connected to a negative side terminal of the second self-turn-off device, a third external terminal connected to an anode of the third diode, a first external control terminal connected to a control signal terminal of the first self-turn-off device, and a second external control terminal connected to a control signal terminal of the second self-turn-off device.

REFERENCES:
patent: 4855893 (1989-08-01), Kratz
patent: 4881159 (1989-11-01), Holtz et al.
patent: 5383108 (1995-01-01), Okayama
patent: 5444594 (1995-08-01), Tanaka et al.
patent: 5459655 (1995-10-01), Mori et al.
patent: 5535085 (1996-07-01), Tanaka et al.
patent: 5731970 (1998-03-01), Mori et al.
patent: 5801936 (1998-09-01), Mori et al.
patent: 5811878 (1998-09-01), Harmoinen et al.
H. Tsuchihashi, et al. "Clamp Snubber for 3-Level-Inverter" National Convention of the Institute of Electrical Engineers of Japan; Mar. 28, 1995.

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