Current measuring circuit for a PWM driver and method of...

Details Current measuring circuit for a PWM driver and method of... Current measuring circuit for a PWM driver and method of...

2005-08-09

2005-08-09

Tang, Minh N. (Department: 2829)

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Magnetic saturation

C324S126000

Reexamination Certificate

active

06927561

ABSTRACT:
A current measuring circuit for a PWM driver. The current measuring device measures the high side and low side currents of a PWM driver circuit before the currents reach the driver. A first measuring circuit measures the high side of the circuit and a second measuring circuit measures the low side of the circuit. The second measuring circuit also receives a signal from the first measuring circuit containing the current measurement measured by the first circuit and the second circuit then adds this current to the second circuit current and transmits a signal of the summed currents to a receiving device.

REFERENCES:
patent: 5436545 (1995-07-01), Bahr et al.
patent: 5629616 (1997-05-01), Weggel
patent: 5631817 (1997-05-01), Minami
patent: 5710495 (1998-01-01), Skelton
patent: 6320370 (2001-11-01), Weggel
patent: 6804131 (2004-10-01), Galbiati et al.

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