JPH02103969U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a block diagram of a first preferred embodiment of a power supply according to the present invention using a flyback track and an SCR as a switching device, and FIG. 2 is a block diagram of a second preferred embodiment of a power supply according to the present invention using a pulse transformer and an SCR.
FIG. 3 is a block system diagram of the third embodiment of the present invention that uses a transformer and transistor switch. FIG. 4 is a schematic diagram of an example of a power supply circuit that uses a flyback transformer to control the SCR. Circuit diagrams, FIG. 5 shows a schematic circuit diagram of another embodiment of the invention using an optical coupler, and FIG. 6 shows another embodiment of the invention using a specially designed flyback transformer. 7 is a diagram showing another embodiment of the present invention in which an electronic switch is logically controlled. FIG. 8 is a diagram showing a voltage curve on a time scale to explain the operation of the circuit of FIG. 7. The figure is the first
FIG. 10 is a diagram showing a practical circuit formed by combining the various circuits shown in FIGS. 8 to 8, and FIG. 10 is a diagram showing an optical coupler for performing insulated feedback. 10...Line filter, 12...Terminal, 13...
...Input terminal, 14... Rectifier winding, 16... Primary winding, 18, 18a, 18A, 18B... Secondary winding, 20... Silicon controlled rectifier, 22... Pulse transformer, 24... Horizontal scanning regulator, 26, 26
a... Diode, 27... Line, 28... Adjuster, 30... Horizontal deflection drive output circuit, 32... Deflection yoke, 34, 34a, 58, 102, 108,
110, 134... Capacitor, 36, 36a...
... Load, 38 ... Pulse transformer, 40 ... Silicon control rectifier, 42 ... Filter, 44 ... Horizontal deflection circuit, 46 ... Timer circuit, 48 ... Trigger circuit, 50 ... Rectifier circuit, 52 ... Chiyoke coil , 54...transistor, 56...horizontal deflection circuit, 58...capacitor, 60...feedback circuit,
62...Pulse width modulator, 64...Input terminal, 6
5...Fuse, 68...Chiyoke coil, 72
... Rectifier diode, 74 ... Electrolytic capacitor,
76, 78... Voltage divider, 79... Current limiting resistor,
80... Filter, 82... Zener diode, 84... Silicon controlled rectifier, 86... Driver transistor, 88... Output transistor, 9
0... Damper diode, 92... Programmable union transistor, 94... Suppression capacitor, 96, 100, 112, 116,
118, 140, 140a...Resistor, 98...Decoupling filter capacitor, 106...Separation diode, 114...Potentiometer, 120,1
22... Decoupling capacitor, 124... Zener diode, 132... Chi York coil, 136
...Circuit, 200...Optical coupler, 300,3
02...Conductor, 304...Analog/digital converter, 306...Countdown counter, 30
8... Main oscillator, 310... Gate, 312,3
14,316...Horizontal scanning pulse, 318,32
4...Pulse, 320...Return pulse, 322...
...Trigger pulse, 407,409...Decoupling capacitor, 408,412...Winding, 414,41
6,418...DC power supply, 420...Diode, 422...Filter, 424...Isolation device, 4
26...Regulator and trigger circuit.

Claims (1)

[Claims for Utility Model Registration] 1. A magnetic core having a large cross section, a plurality of integrally wound power supply windings wound around the core, an insulating layer on the power supply winding, and a winding on the insulating layer. a horizontally swept flyback transformer having a rotated primary winding, a high voltage secondary winding and a rectified secondary winding; an alternating current power supply; connected to the alternating current power supply and adapted to provide a source of unregulated direct current potential; rectifier means for rectifying an alternating current; a triggerable control conduction device having a series circuit formed from a rectifying secondary winding of a flyback transformer and a trigger input to intermittently draw current from the unregulated direct current potential source; voltage regulating means for supplying a non-insulated regulated DC potential source; two voltage regulators connected in series to the non-insulated regulated DC potential source;
The first circuit element consists of the primary winding of a flyback transformer, and the second circuit element consists of an electronic switch operated at a horizontal sweep frequency ratio, a damper diode, and a horizontal deflection coil circuit. a horizontal sweep circuit connected in parallel; and a high voltage rectifier connected in series with the high voltage secondary winding of the flyback transformer, which is conductive from the horizontal scanning period to the horizontal retrace period to rectify the retrace period voltage peak. formed of a diode rectifier connected in series with a filter capacitor, each connected to one or more of the plurality of power supply windings, the series circuit diode rectifier being conductive during the horizontal scan period from the horizontal retrace period; each filter capacitor comprises a plurality of series circuits forming an isolated regulated series potential source; at least one high wattage voltage whose wattage requirement varies substantially during the time it is connected to the at least one isolated regulated DC potential source; a load; with respect to a horizontal retrace interval, regulating the insulation regulated DC potential source by adjusting the timing of a trigger pulse provided to the control continuity device; scanning regulating and pulsing means having a feedback input and a pulse output connected to the trigger input of the controlled conduction device so that fluctuations in the load current flowing from the isolated regulated DC potential source are controlled by high voltage and A power supply circuit that supplies power so as not to adversely affect the operation of the horizontal deflection circuit. 2. The power supply circuit of claim 1, wherein said scan adjustment and pulse generation means has a second feedback input connected to said unregulated DC potential source.