AND8123JP - 臨界導通モード(CrM)で動作する力率補正段
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- しょうこ すみだ
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1 (PFC) PFC PFC (PFC) IEC1 (THD) AC PFC APPLICATION NOTE () 4 V ( ) (Figure Figure 4) 1MOSFET MOSFET trr PFC dl/dtrms Diode Bridge PFC Stage Power Supply + AC Line IN Controller + Bulk Capacitor LOAD Figure 1. Power Factor Corrected Power Converter PFC PFC (MC6MC68MC6)NCP165 W Semiconductor Components Industries, LLC, 14 November, 14 Rev. 1 Publication Order Number: AND81JP/D
2 AND81/D Diode Bridge Diode Bridge Icoil + L Icoil + L + IN V in IN V in V out The power switch is ON The power switch being about zero, the input voltage is applied across the coil. The coil current linearly increases with a (V in /L) slope. The power switch is OFF The coil current flows through the diode. The coil voltage is (V out V in ) and the coil current linearly decays with a (V out V in )/L slope. Coil Current V in /L Icoil_pk (V out V in )/L Critical Conduction Mode: Next current cycle starts as soon as the core is reset. Figure. Switching Sequences of the PFC Stage (Figure ) (V in /L) V in L (V out V in )/L V out PFC () (Figure 4)EMI( 1 nf 1. F) Figure (V in ) PFC1V in AC AC PWM PWM MOSFET (Figure Figure 4) Figure 4 8 AC EMI Icoil T Icoil_pk (eq. 1) <Icoil> T 1( T) Icoil_pk Icoil_pk(k*V in ) <Icoil> T Icoil T k*vin k* * * sin(t) (eq. ) AC
3 AND81/D V in L1 PFC Stage D1 AC Line Input Filtering Capacitor X1 Bulk Capacitor + C1 R7 Current Sensing Resistor Zero Current Detection PWM Latch S Output Buffer Current Envelope R Current Sense Comparator Q R1 R Multiplier Error Amplifier Vref C R R4 Figure. Switching Sequences of the PFC Stage PWM PWMMOSFET Peak Inductor Current (Icoil) T MOSFET DRIVE (Tac is the AC line period) Figure 4. Coil Current 8AC
4 AND81/D ton *L* Pin toff * *L* Pin * ( **sin(t)) *sin(t) ton * **sin(t) (eq. ) **sin(t) MC6 AC (ton) (V in /L) Icoil(t) Vin L *t (eq. 4) (ton) (Icoil_pk) Icoil_pk Vin L *ton (eq. 5) ton L * Icoil_pk (eq. 6) Vin (toff) (V in V out ) ((V out V in )/L)(Icoil_pk) Icoil(t) Icoil_pk Vin *t (eq. 7) L Icoil toff L * Icoil_pk (eq. 8) Vin ( T)tontoff T ton toff L * Icoil_pk * (eq. 9) Vin * ( Vin) (17) ACrms Icoil_pk * * Pin *sin(t) (eq. 1) AC(9)Icoil _pk T * * L* Pin *sin(t) * **sin(t) * ( Vin) (eq. 11) T *L* Pin * * ( Vin) (eq. 1) f *L* Pin 1 **sin(t) (eq. 1) (ACrms) 1 *L* Pin AC 1 **sin(t) ACAC 4
5 AND81/D Figure 5. Switching Frequency Over the AC Line RMS Voltage (at the Sinusoid top) f(9) =1rms V out = 4 V ( = 18V %= 7V6%)V out AC (LLHLLLVa chl) Figure 7. Switching Frequency Over the AC Line ACf1 = VV out = 4V AC1 5 Figure 6. Switching Frequency vs. the Input Power (at the Sinusoid top) f( W) = 1 1 WPFC MHz MC6 4kHz Figure 8. Switching Frequency Over the AC Line 9 = 9V Figure 5(f ) AC 5
6 AND81/D EMIPFC ( ) (5 khz)emi. s (5 khz) PFCAC AC lin(t) *lac*sin(t) (eq. 14) Iin(t)ACIac AC lin(t) Icoil T Icoil_pk (eq. 15) <Icoil> T T Icoil_pk Icoil_pk * *lac*sin(t) (eq. 16) PFC1 ACrmsrms ( Pin * lac) Icoil_pk * * Pin *sin(t) (eq. 17) sin(t) 1 (Icoil_pk)H rms (Icoil_pk)H * * Pin (eq. 18) AC Icoil_max * * Pin max (eq. 19) LL <Pin>max LLAC rms rms1. rms rms 1. rms MOSFET < t < ton (IM(t) Vin * tl Icoil_pk * tton) (ID(t) Icoil_pk ( Vin) * tl Icoil_pk * (T t) ton<t<t (T ton) ) Trms (Icoil)rms T 1 T *ton Icoil_pk * t T *dt Icoil_pk * *dt T t ton ton T ton (eq. ) (Icoil)rms T 1 T *Icoil_pk ton * ton (T ton) * Icoil_pk *Icoil_pk * T T T ton Icoil_pk * T ton (eq. 1) T ton 6
7 AND81/D (Icoil)rms T 1 T *Icoil_pk *ton (T ton) ) * Icoil_pk * ( Icoil_pk (eq. ) (Icoil)rms T Icoil_pk * (eq. ) 1 T *ton T ton (Icoil)rms T Icoil_pk (eq. 4) AC rms17 (Icoil)rms T * * Pin *sin(t) (eq. 5) V in rms V in AC rms<(icoil)rms> T rms rms (eq. 6) Tac (Icoil)rms Tac * (Icoil)rms T *dt Tac = */AC( ms16.66 ms)ac PFCAC AC (Tac/) 5 Tac (Icoil)rms Tac * * * *sin(t) Pin *dt (eq. 7) rmsrms * * Pin *sin(t) ( * * Pin ) rmsrms ( ) Icoil(rms) * Pin (eq. 8) MOSFET 5% (Figure 9tt FR ) 7
8 AND81/D Figure 9. Turn Off Waveforms Figure 9 MOSFET () t (Figure 9) t FR * Icoil_pk psw * t t (eq. 9) FR T * Icoil_pk * t FR T tt FR Figure 9 T 9 () T L * Icoil_pk * Vin Vin. 99 psw Vin * ( Vin) * (t t FR) (eq. ) *L 1 AC psw (<psw>) (eq. 1) psw Tac Tac * Vin * ( Vin) * (t tfr) * dt *L psw t t FR *L * Tac Tac * Vin * * dt Tac Tac * Vin *dt (eq. ) 8
9 AND81/D V out ( * *) ( Tac Tac * Vin *dt) (eq. ) psw t t FR * * * * *L (eq. 4) psw *(t t FR)* * *L * 4 (L) L 4(V out /)MOSFET MC6 AC () PFC 1 tt FR MOSFETQ (Figure 1)t Q Q1 (Q/) (t = Q/I drive t = [Q1 + (Q/)]/I drive ) t FR Figure 1. Typical Total Gate Charge Specification of a MOSFET MOSFET (Qcc*Vcc*f)Qcc VccMOSFET Vccf PFC MOSFET MOSFET (1/*C parasitic *V *f)c parasitic V MC6 4 MOSFET Figure 4 RFI AC Icoil(t) Vin L *t (eq. 5) V in (Vin **sin(t) )L t 9
![drive t = [Q1 + (Q/)]/I drive ) t FR Figure 1.](/docs-images/48/20220745/images/page_9.jpg "Typical Total Gate Charge Specification of a MOSFET MOSFET (Qcc*Vcc*f)Qcc VccMOSFET Vccf PFC MOSFET MOSFET (1/*C")
10 AND81/D Icoil T pt 1 T * ton RonMOSFET ton 6 (eq. 7) pt Ron T * Vin ton L * t *dt 1 *Ron* Vin L * ton T Icoil_pk Vin * tonl pt 1 (eq. 8) * Ron * Icoil_pk * ton T ( 1 * Ron * Ipk *dipk dmosfet) MOSFET ton Ron * Icoil(t) *dt 1 T * Ron * Vin L *t *dt (eq. 6) (d = ton/t) 1 (toff)ton( )(T = ton + Toff) 1 (CCM)CCM d ton T 1 Vin (eq. 9) 98 (eq. 4) pt 1 * Ron * Icoil_pk *1 Vin (Icoil_pk) Icoil_pk * * Pin *sin(t) ( 17) V in Icoil_pk( **sin(t) )( * * Pin *sin(t) ) 4 pt 1 (eq. 41) *Ron** * Pin *sin(t) *1 **sin(t) pt 8 *Ron* Pin *sin (t) * * sin (t) (eq. 4) 4V in AC p Tac 8 *Ron* Pin Tac * Tac * sin (t) * sin (t)(.5)<sin (t)> sin () 1 cos() sin( ) sin( ) sin() * cos() * sin (t) *dt (eq. 4) sin (t) *sin(t) sin(t) (eq. 44) p Tac 8 *Ron* Pin Tac * Tac * sin(t) * * * sin(t) * * sin(t) *dt 4 * 4 * (eq. 45) 1
11 AND81/D p Tac 8 *Ron* Pin 46 * 1 * p Tac 4 * Ron * Pin * 4 * *1 8* * * 4 * * * * (eq. 46) (eq. 47) (/V out )MOSFET MOSFET MC6 AC () PFC p Tac Ron * (IM)rms rms((i M )rms) (IM)rms * Pin * 1 8* * (eq. 48) * PFC MOSFET MC6 MC6 ( Figure 15 ) ( ) PFC MC6 PFC MC6 MC6 (I M )rmsrms prs 6 4 * Rs * Pin *1 8* * (eq. 49) * <prs> 6 Rs MC6 Rs Rsrms prs 6 Rs * (Icoil(rms) ) (eq. 5) Icoil(rms)rms8 Icoil(rms) * Pin. prs 6 4*Rs * Pin (eq. 51) 11
12 AND81/D prs 6 prs 6 (eq. 5) prs 6 prs 6 1 8* * * 8/.85 prs 6 prs * Vm VmAC (eq. 5) RMS Id Iload ICout (eq. 54) (eq. 55) Id Iload ICout Iload ICout ( ) Id Iload Pout (eq. 56) rms rms rms AC Figure 4 (Icoil_pk) Icoil(t) Icoil_pk * toff t (eq. 57) toff rms1 rms Id(rms) T 1 toff (eq. 58) T * Icoil_pk * toff t toff *dt 1 rms Id(rms)T toff * Icoil_pk (eq. 59) *T Icoil_pk17 Id(rms)T * * Pin * toff *sin(t) (eq. 6) T tofft toff T* Vin (eq. 61) T* **sin(t) * * (eq. 6) Id(rms)T * Pin * sin(t) * V in rms rms rms (eq. 6) Tac Id(rms) Tac * 8* * Pin * * sin (t) * dt MOSFET(sin (t)) And : Then : sin (t) sin(t) * sin (t) sin(t) * 1 cos(t) 1 * sin(t) 1 * sin(t) * cos(t) sin(t) * cos(t) 1 *(sin( t) sin(4t) ) sin (t) 4 * sin(t) 1 4 * sin(t) 6 Id(rms) Tac * Tac 8* * Pin * * sin(t) * sin(t) *dt 4 4 (eq. 64) 1
13 AND81/D Id(rms) 16 * * Tac * Pin * ( *Tac ) Id(rms) 16 * cos(tac) ) **(cos() 4 * Pin * * (1 cos() ) * cos() 1 4 *Tac 1 *Tac cos(tac) cos() 1 (eq. 65) (eq. 66) (cos) Id(rms) 16 * * Pin * 6 * 8* 1 1 * (eq. 67) rms Id(rms) * (eq. 68) 9* * Pin * rms Id(rms) 4 (eq. 69) * * * Pin * rms Figure 11 (I1)(I) Ic(t) I1(t) I(t) (eq. 7) AC1 rms111 rms Ic(rms) Tac (eq. 71) Tac * (I1 I) *dt (I1 I) (eq. 7) Ic(rms) Tac Tac * [I1 I ( * I1 * I)] * dt (eq. 7) Ic(rms) I1(rms) I(rms) 4 Tac Tac * I1 * I * dt V in DRV PFC Stage L D V out Figure 11. Output Capacitor Current I1 Power Switch Ic I Load (I1(rms)) rms (I(rms)) rms I1I PFC () rms Ic(rms) I1(rms) I(rms) (eq. 74) rms Ic(rms) * * Pin 9* ** I(rms)rms I(rms) (eq. 75) 1
![7) AC1 rms111 rms Ic(rms) Tac (eq. 71) Tac * (I1 I) *dt (I1 I) (eq. 7) Ic(rms) Tac Tac * [I1 I ( * I1 * I)] * dt (eq.](/docs-images/48/20220745/images/page_13.jpg "7) Ic(rms) I1(rms) I(rms) 4 Tac Tac * I1 * I * dt V in DRV PFC Stage L D V out Figure 11.")
14 AND81/D I = V out /RR7 Ic(rms) 1(rms) (eq. 76) R 4 Tac Tac * 1* R *dt rms Ic(rms) Id(rms) R * * Id R Ic(rms) * 9* * Pin * R * R Pout = V out /R Ic(rms) * 9* * Pin * R * Pout (eq. 77) (eq. 78) (eq. 79) Ic(rms) I I ( )(9 Ibulk Cbulk * ddt ) 79 () (ESR Figure 1) PFCMOSFET ESR (ESR*I)I ESRESR*(Id I) Id PFC ESR PFC PFC () () Figure 1Figure 14 V in Driver PFC Stage Figure 1. ESR of the Output Capacitor Id ESR Ic I Load Bulk Capacitor 14
15 AND81/D Figure 1. Output Voltage Ripple PFC PFC PFC Figure 14. Output Voltage Ripple ( )AC 15
16 AND81/D 1 lin * Pin *sin(t) (eq. 8) ( )( **sin(t) )Iin Pin * Pin * sin (t) (eq. 81) ( *Pin) PFC I * Pin I C*dVdt * Pin I Cbulk * d dt (eq. 8) 818 d 1 dt Cbulk ** * Pin * sin (t) * Pin (eq. 8) * d dt * Pin * * sin (t) 1 Cbulk (eq. 84) d() * * d cos(t) 1 * sin (t) dt dt * Pin Cbulk * * sin(t) (eq. 85) <V out > * Pin *sin(t) 1 Cbulk * * (eq. 86) (eq. 87) * Pin *sin(t) 1 Cbulk * * V out * Pin *sin(t) * 1 Cbulk * * (eq. 88) 1 () * Pin *sin(t) 1 11 Cbulk * * * Pin *sin(t) Cbulk * * * Pin *sin(t) 1 Cbulk * * 1 1 Pin *sin(t) * Cbulk * * (eq. 89) 8889 * Pin *sin(t) (eq. 9) * Cbulk * * (sin(t) 1) (sin(t) 1) ()pk pk * Pin Cbulk * * ()pk pk * sin(t) (eq. 91) (eq. 9) 16
17 AND81/D PFC 1 AC PFC MOSFET PFC 17
18 AND81/D Peak Coil Current: Icoil_pk * * Pin *sin(t) Maximum Peak Current: Icoil_max * * Pin max LL RMS Coil Current: Icoil(rms) * Pin Average Diode Current: Id Iload Pout RMS Diode Current: Id(rms) 4 * * * Pin * Switching Frequency: f *L* Pin 1 **sin(t) Switching Losses: psw *(t t FR)* *L Conduction Losses: Pon 4 *Ron* Pin * * 4 *1 8* * * L1 D6 V out I load AC Line M1 CONTROLLER + C1 LOAD R7 R5 MC6 like Current Sense Resistor (Rs = R5) Dissipation: prs 6 4*Rs * Pin MC6 like Current Sense Resistor (Rs = R7) Dissipation: prs 6 4 *Rs* Pin *1 8* * * Capacitor Low Frequency Ripple: * Pin ()pk pk Cbulk * * RMS Capacitor Current: Ic(rms) * * Pin Iload(rms) 9* * * If load is resistive: Ic(rms) * 9* * Pin * R : AC line rms voltage LL: lowest level : AC line angular frequency <Pin>: Average input power <Pin>max: Maximum pin level : Output voltage Pout: Output power Iload: Load current Iload(rms): RMS load current : Efficiency Ron: MOSFET on resistance t, t FR : Switching times (see Switching Losses section and Figure 1) Cbulk = C1: Bulk capacitor value Rs: Current sense resistance L: Coil inductance Figure 15. Summary 18
19 AND81/D ON SemiconductorONSemiconductor Components Industries, LLC (SCILLC) SCILLC ()SCILLC SCILLC SCILLCSCILLC SCILLC SCILLCSCILLC SCILLC SCILLC PUBLICATION ORDERING INFORMATION LITERATURE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 516, Denver, Colorado 817 USA Phone: or Toll Free USA/Canada Fax: or Toll Free USA/Canada orderlit@onsemi.com N. American Technical Support: Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: Japan Customer Focus Center Phone: ON Semiconductor Website: Order Literature: For additional information, please contact your local Sales Representative AND81JP/D
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CMOS 376-851511 0277 (30) 1788 0277 (30)1707 e-mail: k_haruo@el.gunma-u.ac.jp AD AD AD [] AD AD AD [] ISSCC 2007 TSMC ISSCC2007 ISSCC2007 /DAC (regulation) (AGC) ADC/DAC AD AD AD [] AD CMOS SAR ADC Gr),,
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お客様各位 カタログ等資料中の旧社名の扱いについて 2010 年 4 月 1 日を以って NEC エレクトロニクス株式会社及び株式会社ルネサステクノロジが合併し 両社の全ての事業が当社に承継されております 従いまして 本資料中には旧社名での表記が残っておりますが 当社の資料として有効ですので ご理解の程宜しくお願い申し上げます ルネサスエレクトロニクスホームページ (http://www.renesas.com)
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Description
Metal Hybrid Inductor Description Metal Hybrid Inductor Magnetically shielded Suitable for Large Current Size: 4.3 x 4.3 x H2.1 mm Max. Product weight:.18g (Ref.) Halogen Free available Operating temperature
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1.0 1. Display Format 8*2 Character 2. Power Supply 3.3V 3. Overall Module Size 30.0mm(W) x 19.5mm(H) x max 5.5mm(D) 4. Viewing Aera(W*H) 27.0mm(W) x 10.5mm(H) 5. Dot Size (W*H) 0.45mm(W) x 0.50mm(H) 6.
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1 CMOS 0.35um CMOS, 3V CMOS 2 RF CMOS RF CMOS RF CMOS RFCMOS (ADC Fabless 3 RF CMOS 1990 Abidi (UCLA): Fabless RF CMOS CMOS 90% 4 5 f T [GHz] 450 400 350 300 250 200 150 Technology loadmap L[nm] f T [GHz]