Integrated current sensor torque control for ac motor drives

Details Integrated current sensor torque control for ac motor drives Integrated current sensor torque control for ac motor drives

1988-01-04

1988-10-11

Salce, Patrick R.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

363132, H02M 75387

Patent

active

047775785

ABSTRACT:
A method and apparatus for operating a current-controlled pulse width modulated inverter for driving a polyphase AC load includes using partial current feedback information, obtained from the inverter lower phase-leg switches and flyback diodes only, to regulate current flow in each phase of the load by synthesizing an analog feedback signal from the partial current feedback information.

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patent: 4533836 (1985-08-01), Carpentar et al.
patent: 4710686 (1987-12-01), Gvzik
D. M. Brod et al., "Current Control of VSI-PWM Inverters", IEEE Trans. on Industry Applications, vol. IA-21, pp. 562-570, May/Jun. 1985.
C-E. Cordonnier and D. L. Zaremba, Jr., "Application Considerations for SENSEFET.TM. Power MOSFET Devices", Power Conversion International Conference Proceedings, May 1987, pp. 47-65.
W. Schultz, "Lossless Current Sensing with SENSEFETs Enhances Motor Drive Design:, Power Conversion and Intelligent Motion, Apr. 1986, pp. 30-34.
S. Young, "Current Sensing HEX Sense Power MOSFETs Simplify SMPS Designs and Lower Losses;, Power Conversion and Intelligent Motion, Jul. 1987, pp. 76-83.

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