Reversible inverter system having improved control scheme

Details Reversible inverter system having improved control scheme Reversible inverter system having improved control scheme

1979-04-24

1981-01-27

Shoop, William M.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

307228, 328 74, 318722, 318345G, H02M 7515, H02M 7757

Patent

active

042478901

ABSTRACT:
An inverter system for supplying variable frequency alternating current power to a load such as an a.c. motor includes an inverter bridge of controlled rectifiers which are selectively rendered conductive by the application thereto of gating pulses. The gating signals result from a control circuit which includes a voltage controlled oscillator responsive to a command signal having a d.c. magnitude and polarity which in turn outputs a signal having a substantially saw-tooth wave shape. Comparator circuits responsive to the saw-tooth wave shape signal provide timing pulses and direction signals which are applied to a shift register to effect movement of the register contents the extant status of which initiates the production of the gating signals for rendering the semiconductors conductive.

REFERENCES:
patent: 3278737 (1966-10-01), Germain
patent: 3353081 (1967-11-01), Stemmler
patent: 3493961 (1970-02-01), Hansen
patent: 3808460 (1974-04-01), Mosca
patent: 3831113 (1974-08-01), Ahmed
patent: 4032831 (1977-06-01), Nabae et al.

Affiliated with

Also associated with

Rating

Reversible inverter system having improved control scheme does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reversible inverter system having improved control scheme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reversible inverter system having improved control scheme will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1184790