公开(公告)号：US4027228A

公开(公告)日：1977-05-31

申请号：US669380

申请日：1976-03-23

Applicant: James R. Collins

Inventor： James R. Collins

IPC: H02M7/537 ,  H02M7/5387 ,  G05F1/64

CPC classification number: H02M7/537 ,  H02M7/53871 ,  Y10S323/902 ,  Y10T307/773

Abstract: A switching transistor inverter circuit for driving high power AC loads such as arc discharge lamps from a DC electrical energy source. Each switching transistor is included in a switching amplifier whose response time is short as compared with the response characteristic of the load and the AC cycle period. A single driver circuit is coupled to the respective switching amplifiers by photocouple isolation means through an electrooptically coupled light emitter-sensor pair. A clock pulse generator provides the necessary signal to the driver circuit which includes a phase splitter driver. A two-stage amplifier receives the signal from the sensor transistor of the photocouple and amplifies it to drive the switching transistor which is, in the preferred embodiment, a power darlington device of the monolithic type.

Abstract translation: 一种用于从DC电能源驱动诸如电弧放电灯的大功率AC负载的开关晶体管反相器电路。 每个开关晶体管包括在与负载和AC循环周期的响应特性相比响应时间短的开关放大器中。 单个驱动器电路通过光电耦合光发射器 - 传感器对通过光耦隔离装置耦合到相应的开关放大器。 时钟脉冲发生器向包括相分离器驱动器的驱动器电路提供必要的信号。 两级放大器接收来自光电耦合器的传感器晶体管的信号，并将其放大以驱动开关晶体管，在优选实施例中，开关晶体管是整体型的功率达赖顿装置。