电源的介绍.pdf

AN-556 2002 National Semiconductor Corporation AN010061 556 20029 TV Hi-fi 50 1-2- 3- 1. 01006101 1. 2. 3. 4. 5. 6. 100 1 2 C1 5V12V - Vi–Vo x Io EMI 2 AN-556 2. 01006105 1 60 3 R Voavg ton/T x Vi 1 tonVoavg PWM - - 5V28V48V 41 28V 5VTTL 4toVo LC VoQ LC L MOSFET D 0.02–0.050.05–0.1 0.02–0.10.1–1.0 0.5 mV–2 mV RMS10 mV–100 mVP-P 1020 40–5560–95 0.5 W/cu. in.2W–10W/cu. in. 50 s300 s 2 ms34 ms a b 01006102 1. AN-556 3 5 5V12V 150V t0 3. 01006103 4. 01006104 time1 D LIPWM PWM Vo Vo VINT/Tton 2 5. I/V 01006106 4 AN-556 6 - 110V/220V 7 150W 2 50 Hz/60 Hz 7 t0 t 1 D PWM N2/N1 VoVINx ton/Tton x N2/N1 3 1. 2.2VIN 3. 6. 01006107 8 7. 01006108 AN-556 5 115V 230V 9 8. 01006109 100W500W10 D1 D2 Vo VIN x N2/N1 x ton/T 4 D3 N3/N1 150 2VIN 9. 115V/230V 01006110 6 AN-556 11 Q1Q2ton PWM2 10. 01006111 Vo 2 x VIN x N2/N1 x ton/T 5 td LC D3 11. 01006112 12 AN-556 1. / a b 2. // CSP-9-111C2 CSP-9-111S2CSP-9-111S2 RoHS National Semiconductor Americas Customer Support Center Email new.feedback Tel 1-800-272-9959 National Semiconductor Europe Customer Support Center Fax 49 0 180-530 85 86 Email europe.support Deutsch Tel 49 0 69 9508 6208 English Tel 44 0 870 24 0 2171 Franais Tel 33 0 1 41 91 8790 National Semiconductor Asia Pacifi c Customer Support Center Email ap.support National Semiconductor Japan Customer Support Center Fax 81-3-5639-7507 Email jpn.feedback Tel 81-3-5639-7560 C1C2 VIN/2 2 VoVIN x N2/N1 x ton/T 6 VIN C1 C2Q1 13 VIN 13. 01006114 12. 01006113