JPS6438876U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a circuit diagram showing an embodiment of the horizontal output circuit according to this invention, Fig. 2 is a circuit diagram showing an equivalent circuit of Fig. 1, and Fig. 3 is a time chart showing the operation of the circuit of Fig. 1. , FIG. 4 and FIG. 5 are operational diagrams of the circuit in FIG. 1 during each period, FIG. 6 is a circuit diagram showing an example of a conventional horizontal output circuit, FIG. 7 is an equivalent circuit diagram of FIG. 6, and FIG. 8 is a time chart showing the operation of the circuit of FIG. 6, and FIGS. 9 and 10 are operation diagrams of the circuit of FIG. 6 in each period. QSW...Horizontal output transistor, D1...Damper diode, D2, D3...Diode,
LY...Deflection yoke, LP...Primary winding, C1...
...resonant capacitor.

Claims (1)

[Claims for Utility Model Registration] A horizontal output transistor whose collector is applied with a voltage from a voltage source via the primary winding of a flyback transformer, and whose emitter is connected to a reference potential point, and which is connected in parallel to the primary winding. a horizontal deflection yoke connected to the horizontal deflection yoke; a resonant capacitor having one end connected to the collector of the horizontal output transistor and charged and discharged by the current accumulated in the primary winding and the deflection yoke when the transistor is turned on; connected between the other end of the capacitor and the voltage source, conductive when charging the resonant capacitor;
a first diode that becomes non-conducting when discharging; and a first diode that is connected between the other end of the resonant capacitor and a reference potential point and becomes conductive when the resonant capacitor is discharging;
A horizontal output circuit comprising: a second diode that becomes non-conductive during charging;