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| application note 9032 dip-smart power module test board iv may, 2003 rev. a, may 2003 1 ?2003 fairchild semiconductor corporation spm ? test board for use in isolated inverter gnd (interface using optocouplers with two isolated power supplies)
2 rev. a, may 2003 ?2003 fairchild semiconductor corporation schematics and external interface diagram note) 1. dead time of > 10 s would be required in order to prevent a inverter-leg from being arm-short. it depends on the optocoupler?s characteristics. in this board, a slow and low-cost type of optocoupler is selected. 2. two isolated power supplies are required. for the primary side: +5v for cpu operation. for the secondary side: +15v for spm operation. +5v is generated by the use of the voltage regulator of7805 c14 33uf 35v c13 104 r9 20 1/4w d3 1n4937 c9 33uf 35v c8 104 r8 20 1/4w d2 1n4937 c7 33uf 35v c6 104 r4 20 1/4w d1 1n4937 c5 220uf 35v c28 104 c15 333 m vdc c20 0.1uf 630v r10 3.9k 1/8w c19 102 r11 56 1/8w r12 270 1/8w c12 471 r7 560 1/8w r6 560 1/8w r5 560 1/8w c11 471 c10 471 c23 102 com(l) vcc in(ul) in(vl) in(wl) vfo c(fod) c(sc) out(ul) out(vl) out(wl) n u (26) n v (27) n w (28) u (29) v (30) w (31) p (32) (23) v s(w) (22) v b(w) (19) v s(v) (18) v b(v) (9) c sc (8) c fod (7) v fo (5) in (wl) (4) in (vl) (3) in (ul) (2) com (l) (1) v cc(l) (10) r sc v th (25) r th (24) (6) com (l) vcc vb out com vs in vb vs out in com vcc vcc vb out com vs in (21) v cc(wh) (20) in (wh) (17) v cc(vh) (15) in (vh) (16) com (h) (14) v s(u) (13) v b(u) (12) v cc(uh) (11) in (uh) thermistor c3 122 r3 560 1/8w c2 122 r2 560 1/8w c1 122 r1 560 1/8w p n p n w w v v u u test board test board test board test board c16 104 c17 104 c18 104 u9 dip-spm u3 h11a817b u2 h11a817b u1 h11a817b u8 h11a817b u7 h11a817b u6 h11a817b u5 h11a817b 680 1/8w 680 1/8w 680 1/8w 680 1/8w 680 1/8w 10k 1/8w 15v 15v 15v 15v com com com com 1 1 1 1 2 2 2 2 j1 cn1 c24 100uf 16v 15v 15v 15v 15v com com com com 1 1 1 1 2 2 2 2 primary 5v primary 5v primary 5v primary 5v secondary 15v secondary 15v secondary 15v secondary 15v primary gnd primary gnd primary gnd primary gnd secondary gnd secondary gnd secondary gnd secondary gnd secondary gnd secondary gnd secondary gnd secondary gnd secondary secondary secondary secondary 15v 15v 15v 15v primary gnd primary gnd primary gnd primary gnd uh uh uh uh vh vh vh vh wh wh wh wh ul ul ul ul vl vl vl vl wl wl wl wl fo fo fo fo 5v 5v 5v 5v gnd gnd gnd gnd 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 8 8 8 8 9 9 9 9 10 10 10 10 7 7 7 7 uh uh uh uh vh vh vh vh wh wh wh wh ul ul ul ul vl vl vl vl wl wl wl wl fo fo fo fo 5v 5v 5v 5v gnd gnd gnd gnd 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 6 8 8 8 8 9 9 9 9 10 10 10 10 7 7 7 7 fault gating uh gating ul gating vl gating wh gating vh gating wl c c c c p p p p u u u u 102 primary 5v primary 5v primary 5v primary 5v secondar 15v secondar 15v secondar 15v secondar 15v secondar 5v secondar 5v secondar 5v secondar 5v secondar 5v secondar 5v secondar 5v secondar 5v reg1 7805 1 2 3 vin vout gnd c21 104 c22 104 secondary 5v secondary 5v secondary 5v secondary 5v secondary 15v secondary 15v secondary 15v secondary 15v secondary gnd secondary gnd secondary gnd secondary gnd c25 33uf 35v secondar 5v secondar 5v secondar 5v secondar 5v r48 390 1/8w rev. a, may 2003 3 ?2003 fairchild semiconductor corporation pcb map photocouplers bias supply connection for photocoupler primary side driving low-side input connection from cpu fault-out signal connection high-side input connection from cpu power connection terminals motor input connection (u, v, w) spm bias supply (15v)terminals electrolytic capacitor for bias supply signal connection terminals dc-link input connection (p, n) dc-link film capacitor bootstrap components 4 rev. a, may 2003 ?2003 fairchild semiconductor corporation external connection signal interface 1 1 high-side input signal from cpu (phase u) 2 high-side input signal from cpu (phase v) 3 high-side input signal from cpu (phase w) 4 low-side input signal from cpu (phase u) 5 low-side input signal from cpu (phase v) 6 low-side input signal from cpu (phase w) 7 no connection 8 fault-out signal to cpu 9 bias supply (+5v) terminal for photo coupler primary side driving 10 bias supply groundterminal for photo coupler primary side driving signal interface 2 1 spm bias supply +15v terminal 2 spm bias supply ground terminal power connection p positive dc link input connection n negative dc link input connection u motor input connection (phase u) v motor input connection (phase v) w motor input connection (phase w) rev. a, may 2003 5 ?2003 fairchild semiconductor corporation photograph of assembled pcb 76[mm] 84[mm] (a) top side view (b) bottom side view 6 rev. a, may 2003 ?2003 fairchild semiconductor corporation part list part no. rating characteristics definition r1 560 ? , 1/8w carbon film resistor (5%) pull-up resistor (uh) r2 560 ? , 1/8w carbon film resistor (5%) pull-up resistor (vh) r3 560 ? , 1/8w carbon film resistor (5%) pull-up resistor (wh) r4 20 ? , 1/4w carbon film resistor (5%) bootstrap resistor (phase u) r5 560 ? , 1/8w carbon film resistor (5%) pull-up resistor (ul) r6 560 ? , 1/8w carbon film resistor (5%) pull-up resistor (vl) r7 560 ? , 1/8w carbon film resistor (5%) pull-up resistor (wl) r8 20 ? , 1/4w carbon film resistor (5%) bootstrap resistor (phase v) r9 20 ? , 1/4w carbon film resistor (5%) bootstrap resistor (phase w) r10 3.9k ? , 1/8w carbon film resistor (5%) low-pass-filter for current sensing r11 56 ? , 1/8w carbon film resistor (5%) current sensing resistor r12 270 ? , 1/8w carbon film resistor (5%) pull-up resistor (fault-out) r48 390 ? , 1/8w carbon film resistor (5%) series resistor for csc c1 1.2nf ceramic capacitor high-side pull-up capacitor (phase u) c2 1.2nf ceramic capacitor high-side pull-up capacitor (phase v) c3 1.2nf ceramic capacitor high-side pull-up capacitor (phase w) c5 220 f, 35v electrolytic capacitor +15v bias voltage source capacitor c6 100nf ceramic capacitor bypass capacitor for bootstrap supply (phase u) c7 33 f, 35v electrolytic capacitor bootstrap capacitor (phase u) c8 100nf ceramic capacitor bypass capacitor for bootstrap supply (phase v) c9 33 f, 35v electrolytic capacitor bootstrap capacitor (phase v) c10 470pf ceramic capacitor low-side pull-up capacitor (phase u) c11 470pf ceramic capacitor low-side pull-up capacitor (phase v) c12 470pf ceramic capacitor low-side pull-up capacitor (phase w) c13 100nf ceramic capacitor bypass capacitor for bootstrap supply (phase w) c14 33 f, 35v electrolytic capacitor bootstrap capacitor (phase w) c15 33nf ceramic capacitor capacitor for selection for fault out duration c16 100nf ceramic capacitor +15v bias voltage bypass capacitor (wh) c17 100nf ceramic capacitor +15v bias voltage bypass capacitor (vh) c18 100nf ceramic capacitor +15v bias voltage bypass capacitor (uh) c19 1nf ceramic capacitor low-pass-fault for current sensing c20 0.1 f, 630v film capacitor snubber capacitor to suppress the spike-voltage c21 100nf ceramic capacitor +15v bias voltage bypass capacitor c22 1 f monolithic capacitor +5v bias voltage bypass capacitor c23 1nf ceramic capacitor pull-up capacitor of fault-out signal c24 100 f, 16v electrolytic capacitor +5v bias voltage source capacitor (for the primary side) c25 220 f, 35v electrolytic capacitor +15v bias voltage source capacitor d1 1a, 600v fast recovery diode (1n4937) bootstrap diode (phase u) d2 1a, 600v fast recovery diode (1n4937) bootstrap diode (phase v) d3 1a, 600v fast recovery diode (1n4937) bootstrap diode (phase w) rev. a, may 2003 7 ?2003 fairchild semiconductor corporation part list part no. rating characteristics definition u1 b photocoupler (h11a817b) photocoupler for signal interface (uh) u2 b photocoupler (h11a817b) photocoupler for signal interface (vh) u3 b photocoupler (h11a817b) photocoupler for signal interface (wh) u4 - dip-spm see the datasheet u5 b photocoupler (h11a817b) photocoupler for signal interface (ul) u6 b photocoupler (h11a817b) photocoupler for signal interface (vl) u7 b photocoupler (h11a817b) photocoupler for signal interface (wl) u8 b photocoupler (h11a817b) photocoupler for signal interface (fault-out) reg1 100ma voltage regulator (ka78l05a) 3-terminal positive voltage regulator !"#$ %"& '(% & % )'"% &' ! %*$%('( (! '&$$% "'+ '% ,'*- %& ''.$ '- '( $$ %+ !% !"'* %("& % % $% %( / 0 ! 11 2 2 34 5 1 23 45 11 3 45 1 1 1 2 1 3 21 6 2 7 1 21 11 2 1 21 11 23 2 $ 2 ( ( % 1 1 1 1 2 2 1 2 3 11 2 1 2 1 1 2 1 1 1 2 1 2 " $ $ ( $ !"# ! $ % & '( ) * + ,-./ , 0 " " "! "# ! 1+# ! % ! 0 #23 #24 #25 ( ( + # 6% 6 7 ! 0!$ 8! # ! 0!, 8 0! ,! 0 +$! '! |
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