1 Prof R T Kennedy EET 307 POWER ELECTRONICS -1 Professor Robert T Kennedy.

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Presentation transcript:

1 Prof R T Kennedy EET 307 POWER ELECTRONICS -1 Professor Robert T Kennedy

Prof R T Kennedy2

3

4 OUTPUT VOLTAGE RANGE Vout max Vout nom Vout min range maximum-minimum band about nominal value OUTPUT VOLTAGE ERROR BAND

Prof R T Kennedy5 OUTPUT VOLTAGE ACCURACY maximum deviation operational output voltage – specified nominal V o measured output voltage nominal input voltage and rated load current nominal input voltage and rated load current OUTPUT VOLTAGE TOLERANCE

Prof R T Kennedy6 LINE REGULATION CHANGE IN OUTPUT VOLTAGE due to SPECIFIED CHANGE IN INPUT VOLTAGE SPECIFIED CHANGE IN INPUT VOLTAGEat SPECIFIED LOAD CURRENT and TEMPERATURE SOURCE or VOLTAGE EFFECT

Prof R T Kennedy7 LOAD REGULATION CHANGE IN OUTPUT VOLTAGE due to SPECIFIED CHANGE IN LOAD CURRENT SPECIFIED CHANGE IN LOAD CURRENTat SPECIFIED INPUT VOLTAGE and TEMPERATURE LOAD EFFECT

Prof R T Kennedy8 PARD PERIODIC and RANDOM DEVIATION AC EFFECTS LINE & SWITCHING RIPPLE PERIODIC rms or peak-peak SWITCHING TRANSIENTS RANDOM peak-peak V OUT LINE RIPPLE SWITCHING RIPPLE

Prof R T Kennedy9 DROPOUT VOLTAGE minimum input-to-output voltage differential for regulation by the regulator. V OUT = 5 V V DO = 0.3 V V INmin = 5.3 V V INmin = 5.3 V

Prof R T Kennedy10 GROUND CURRENT the portion of regulator supply current that flows to ground instead of to load

Prof R T Kennedy11 QUIESCENT CURRENT current used by the regulator for housekeeping

Prof R T Kennedy12 PROTECTION OVERTEMPERATURE SHUTDOWN disables the output when the regulator temperature rises above a safe threshold OVERVOLTAGE SHUTDOWN disables the output when the input voltage rises above a certain threshold