Transcription of POWER SUPPLY DESIGN BASICS - STMicroelectronics
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APPLICATION NOTEAN253/1088 POWER SUPPLY DESIGN BASICSby P. ANTONIAZZIIn mains-supplied electronic systems the AC inputvoltage must be converted into a DC voltage with theright value and degree of 1 and 2 show the simplest rectifier these basic configurations the peak voltageacross the load is equal to the peak value of the ACvoltage supplied by the transformer s secondarywinding. For most applications the output ripple pro-duced by these circuits is too high. However, forsome applications - driving small motors or lamps,for example - they are a filter capacitor is added after the rectifier diodesthe output voltage waveform is improved consider-ably.
a center-tapped transformer with two rectifei r diodes while the Figure 4 circuit uses a simple transformer and four rectifier diodes. Figure 1 : Basic Half Wave Rectifier Circuit. ... very stable output and include current limiter and thermal protection functions. Figures 16, 17 and 18 show how these circuits are used. Refer to the da-
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