Intelligent, isolated half-bridge power module

Details Intelligent, isolated half-bridge power module Intelligent, isolated half-bridge power module

1995-01-13

1997-01-21

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

361 93, 361103, 361115, H02H 504

Patent

active

055964664

ABSTRACT:
A power module having at least one power transistor. Each power transistor is coupled to and protected by an overvoltage clamp and desaturation detection circuit. An output current measurement system is coupled to the power module output. A junction temperature sensor is coupled to each power transistor. An isolation transformer is associated with each power transistor, the primary windings of which are connected to an isolated driver communications interface which converts logic signals to primary winding drive signals. An isolated gate driver is coupled to the secondary winding of each isolation transformer and the gate terminal of each power transistor.

REFERENCES:
patent: 4903106 (1990-02-01), Fukunaga
patent: 4965710 (1990-10-01), Pelly et al.
Yamazaki, T., et al., "The IGBT with Monolithic Overvoltage Protection Circuit," Proceedings of the 5th International Symposium on Power Semiconductor Devices and ICs (1993), pp. 41-45.

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