Wave generation circuit for a pulse-width modulation inverter

Details Wave generation circuit for a pulse-width modulation inverter Wave generation circuit for a pulse-width modulation inverter

1984-10-01

1987-08-11

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328155, 307262, 364721, G06F 300, H03K 500

Patent

active

046864806

ABSTRACT:
A wave generation circuit for a pulse width modulation inverter generates a plurality of differently phased waves which are modulated to form driving signals for switching elements in the inverter. This circuit has a single memory element having waveform data stored therein and also has an operation circuit for providing phase address signals which indicate the address of the waveform data corresponding to each phase. The data at the indicated addresses are read out of the memory element and latched by a phase latch circuit for each phase. When all of the stored data corresponding to each phase have been latched, the operation circuit transmits an output timing signal to cause the phase latch circuits to simultaneously provide the latched data which form driving signals for the switching elements.

REFERENCES:
patent: 4159527 (1979-06-01), Yahata et al.
patent: 4306190 (1981-12-01), Beckwith et al.
patent: 4327420 (1982-04-01), Gdula et al.

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