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1. 发明授权

US4639845A Voltage inverter 失效
标题翻译：电压变频器
公开(公告)号：US4639845A
公开(公告)日：1987-01-27
申请号：US609470
申请日：1984-05-11
申请人： Eric G. Persson , Ronald D. Veith
发明人： Eric G. Persson , Ronald D. Veith
IPC分类号： H02M7/5383 , H02M7/53846 , H02M3/335
CPC分类号： H02M7/53846
摘要： A voltage inverter is disclosed. A clock circuit provides timing signals to the electronics of the system. Electronics include a circuit for controlling the phase relationship between a pair of square waves, an overcurrent protection circuit, an auto-on circuit, a low voltage shutdown circuit, and output driver transistors for driving a primary transformer. A power transformer is connected to the primary transformer, and the output of the inverter is taken from the secondary transformer. Voltage and current magnitude indicative feedback signals are provided from the output of the inverter with the voltage signal being monitored by the phase varying circuit and the current feedback signal being monitored by the overcurrent protection circuit. Control of the off-time between alternating pulses during a cycle of the output is controlled by overlapping the square waves controlling the driver transistors for exitation of the primary transformer.
摘要翻译：公开了一种电压逆变器。时钟电路向系统的电子设备提供定时信号。电子装置包括用于控制一对方波之间的相位关系的电路，过电流保护电路，自动启动电路，低压关断电路以及用于驱动初级变压器的输出驱动晶体管。电源变压器连接到主变压器，变频器的输出从次级变压器取出。电压和电流幅度指示反馈信号由逆变器的输出提供，电压信号由相变电路监测，电流反馈信号由过流保护电路监控。通过将控制驱动晶体管的方波重叠起来来控制在输出周期期间的交替脉冲之间的关闭时间，以便退出初级变压器。

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