Drive circuit with BOT level shifter for transmitting an...

Details Drive circuit with BOT level shifter for transmitting an... Drive circuit with BOT level shifter for transmitting an...

2007-10-29

2009-12-01

Donovan, Lincoln (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C327S108000, C327S109000, C327S110000, C327S111000, C327S112000

Reexamination Certificate

active

07626441

ABSTRACT:
A drive circuit in power electronic systems comprising a half-bridge circuit of two power switches, a first so-called TOP switch and a second so-called BOT switch, which are arranged in a series circuit. The drive circuit has a BOT level shifter for transmitting an input signal from a drive logic to a BOT driver. The BOT level shifter is formed as an arrangement of an UP and a DOWN level shifter branch and a signal evaluation circuit connected downstream thereof. In the inventive method for transmitting the input signal, the signal evaluation circuit transfers an output signal to the BOT driver at least one of the UP and DOWN level shifter branches outputs a signal to the respectively assigned input of the signal evaluation circuit.

REFERENCES:
patent: 6323704 (2001-11-01), Pelley et al.
patent: 6586974 (2003-07-01), Humphrey et al.
patent: 101 52 930 (2002-10-01), None

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