Thyristor-controlled rectifier
An alternative to the transistor, a thyristor (Figure 15.4) may be used as the regulating device for a power supply. A thyristor is triggered into conduc- tion by a positive voltage applied to its gate, provided that its anode is
positive with respect to the cathode. When fed with an a.c. voltage, the thyristor can only conduct during the positive half cycle. The conduction period is determined by the timing of the trigger pulse to the gate. The output level may thus be controlled by switching the thyristor for longer or shorter periods of time as shown in Figure 15.5.
Related posts:
Plasma panels:Dynamic brightness control
Plasma panels:Address display separated
Magnetic tape recording:Track configuration and Scanning systems.
Flat panel television receivers:Video formatting and De-interlacing
TIMEBASE CIRCUITS.
DVD:Triple-layer DVD and DVD encoding process
VIDEO ON MAGNETIC TAPE:LONG-PLAY VARIANTS.
Liquid crystal display (LCD):TFT cell drive
CONTROL SYSTEMS:MICROPROCESSOR CONTROL.
AUDIO RECORD AND PLAYBACK:PCM RECORDING.
IMAGE DISPLAY AND CAPTURE DEVICES:CONVERGENCE.
Flat panel television receivers:Panasonic GC3 2-chip solution
TV sound, mono and NICAM:Interleaving and Framing
MPEG encoding:The complete DCT coder
The digital TV reception:Flat panel iDTV