Self-oscillating driver with soft start circuit

Details Self-oscillating driver with soft start circuit Self-oscillating driver with soft start circuit

2007-12-11

2007-12-11

Wells, Kenneth B. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

C327S423000, C327S108000

Reexamination Certificate

active

10831807

ABSTRACT:
A driver circuit for a transistor provides a soft start feature where pulses provided to the transistor are varied in duration during startup. The driver also provides an overcurrent protection feature for disabling a driver output for a safe period of time when an overcurrent condition is detected. The driver circuit includes an oscillator that produces a saw tooth wave and a narrow width pulse train for determining pulse width and dead time, respectively. The driver circuit may be used in half-bridge or full-bridge drivers.

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patent: 2003/0035260 (2003-02-01), Shearon et al.
patent: 32 41 668 (1984-05-01), None

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