REGULATED POLYPHASE INVERTER SYSTEM,申请号USD3671846-传众专利搜索

REGULATED POLYPHASE INVERTER SYSTEM

申请公布号：US3671846(A)

申请号：USD3671846

申请日期：1971.01.20

申请公布日期：1972.06.20

申请人：

GATES LEARJET CORP.

发明人：PHILIP D. COREY

分类号：H02M7/497;H02M7/515;(IPC1-7):H02M1/12

主分类号：H02M7/497

摘要：An important class of polyphase inverters employ pulse width modulation in the regulation of the power output voltage level. Such inverters are generally constructed in two symmetrical sections that are interconnected by summing transformers to a common polyphase output. Shifting the relative phase between the signal sets that gate the SCRs of the respective inverter sections correspondingly modulates the width of their resultant square wave pulses. The system output voltage level is correspondingly controlled. The secondary windings of the summing transformers of the present invention are uniquely arranged and interconnected to substantially reduce the size, weight and cost of the output transformer array. Further, a four-wire three-phase inverter system is directly provided without an auxiliary transformer that was heretofor required therefor.