Apparatus for controlling power transducers of the pulse width m

Details Apparatus for controlling power transducers of the pulse width m Apparatus for controlling power transducers of the pulse width m

1987-01-12

1989-05-09

Smith, Jr., David

Electric power conversion systems

Current conversion

With means to introduce or eliminate frequency components

318811, H02M 7527, H02P 540

Patent

active

048294160

ABSTRACT:
In a three phase inverter which is composed of transistors turned on or off in accordance with the PWM control, the pulse widths of PWM gate signals for the transistors are determined in accordance with the magnitudes of two of the three phases of the current to be output by the inverter.
The load of a processor for generating the gate signals can be reduced to the great extent, and in addition thereto, the waveform of the output current of the inverter is much improved.

REFERENCES:
patent: 4337429 (1982-06-01), Stuart
patent: 4409534 (1983-10-01), Bose
patent: 4581693 (1986-04-01), Ueda et al.
patent: 4599685 (1986-07-01), Honibu et al.
patent: 4634952 (1987-01-01), Yoshino et al.
patent: 4654773 (1987-03-01), Ito et al.
patent: 4672285 (1987-06-01), Ito
patent: 4698744 (1987-10-01), Itani et al.
Sen et al., "Induction Motor Drives with Microcomputer Control System", Conference: IAS Annual Meeting, 1980, Cincinnati, OH, USA, Sep. 22-Oct. 3 1980.

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