| 摘要 |
FIELD: electricity. ^ SUBSTANCE: in a single-phase voltage inverter, according to the first version, a pulse generator is made with two antiphased outputs, every of which is connected to inputs of pulse generators in the appropriate channel. Each channel comprises generators of pulses of different duration ä1 and ä2, and antiparallel diodes are connected to transistors joined to generators of pulses with duration ä1 in each channel. According to the second version the antiparallel diodes are connected to transistors joined with generators of pulses with duration ä2 in each channel. According to the third version the control system includes a control element, the output of which is connected to additionally introduced inputs of generators of pulses with duration ä2 in each channel, the pulse generator is made with two antiphased outputs, every of which is connected to inputs of generators of pulses of the appropriate channel, and the antiparallel diodes are connected to transistors connected to generators of pulses with duration ä1 in each channel. According to the fourth version the antiparallel diodes are connected to transistors joined with generators of pulses with duration ä2 in each channel. The value of interval time between the trailing edge of the pulse with duration ä2 in one channel and the leading edge of the pulse ä1 in the other channel exceeds the time of load current drop down to zero in all versions of the single-phased voltage inverter. ^ EFFECT: simplified control system and increased operational reliability of the device. ^ 4 cl, 6 dwg |
