JPS6099895U - transistor inverter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

1 and 3 are circuit diagrams showing a conventional transistor inverter, FIG. 2 is an operation waveform diagram for explaining the circuit operation □ in FIG. 1, and FIG. 4 is a circuit showing an embodiment of the present invention. 5 is an operation waveform diagram for explaining the circuit operation of FIG. 4, and FIG. 6 is a circuit diagram showing another embodiment of the present invention. In the figure, 1 is a DC power supply, 2.13 is a beam handle, 3 is an output transformer, 4 and 5 are transistors, 6.14 is a capacitor, 7 is a load, 8 is a starting resistor, 9 is a current transformer, 1
0 is a rectifier circuit, 11 and 12 are bias resistors, P□? P
2 is the primary winding of the current transformer, P3 is the third primary winding of the same,
S is the secondary winding. Note that the same reference numerals in the figures indicate the same or corresponding parts. Figure 1 Figure 2

Claims (1)

[Scope of utility model registration request] A DC power supply, a pair of transistors connected to this power supply, an accelerator, a pair of transistors connected to the DC power supply via this reactor, parallel to each other, and alternately conductive, and an AC output due to alternate conduction of each transistor. a capacitor connected in parallel to either the primary winding or the secondary winding of the output transformer to form a parallel resonant circuit; a feedback winding connected to the base;
A current transformer having a primary winding inserted into the collector circuit of each of the transistors, and a base drive circuit that obtains a base drive current of the transistor from the output of the transformer, A transistor inverter characterized in that a third primary winding of the transistor is inserted.