C
C
AVCC
to cpu
JP1
3 2 1
BD1 BAV99
R18 R19 C8
R20
B2
AI1 R21 DVCC to cpu
C9 C10
U5
1 R25 2 C14 R27
24V
AGND
DI5 B 24V
B AVCC to cpu R28 JP2
20mA 5V 3 2 1
DVCC to cpu
U6
1 R32 2 C19 R34 1 R33 2 C20 R35
To Close PWM
W/C R23
R26
Iw
A
A
current protect circuit
1
2
3
4
dummyname
1
2
3
4
D
D
+24V
Control signal
1 P
C? / MOV? C? C?
main circuit
2
SCR R3 UH C2 R4 R1 D1 D? R?
PB
Q1 VH Q2 WH Q3
snubber circuit
C R S T
C
1 OPTIONAL
C3 Q4 UL VL Q5 WL Q6
1 2 3 4 5 6
1
2
3
4
Add fault signal from IGBT
D VCCA R1 1 2 R2 VREFI R3 D1 U1B R7 3 5 7 6 U/C C4 470P LF353M R9 C R6 C3 VREFI R8 VCCA 4 R13 U2A 2 1 3 C8 1u R21 8 C9 0.1u B 2 C12 VCCA LM393 VREFI R14 U3B R17 R20 R10 R12 C5 0.1u 2 3 R15 Z1 C6 -15 0.1u C7 C 7 6 LF353 R18 D2 D3 D4 R4 0.1u U3B 5 R19 Iu C2 +15 R5 C1 D
VE VLED2+ DESAT VCC2 VC VOUT VEE VEE
16 15 14 13 12 11 10 9
C13 104
C14 104
C15 331 R5 100R
V' D3 BYV96E R7 100 R8 20K P' WT+ W-UP-DRV W' WT-
5 6
IC+ -15V ICOV OUT HALL +15V
DI6 24V
BD2 BAV99
AI2 RST1 4 3 C17 R31
U7
C15
R29
R30
C16
AGND AGND ACOM'
TLP181
RST
A
A
part connector circuit
dummyname
1
2
3
HY
4
Made in china
1
2
3
4
5
6
U1 CN1 D EN BKE WB VB UB WT VT UT NTC VCP IV IW TRIP 1 3 5 7 9 11 13 15 17 19 21 23 25 2 4 6 8 10 12 14 16 18 20 22 24 26 DJ FAN UT' EN +5V C1 +5V -15V +15V VT' EN +5V C11 104 RST FAU 1 2 3 4 5 6 7 8 104 RST FAU 1 2 3 4 5 6 7 8
W-
VE VLED2+ DESAT VCC2 VC VOUT VEE VEE
P' PB U W V
R S T PB P U V W
HALL +15V 1 +15V
WT' C EN +5V C12 104 RST FAU
1 2 3 4 5 6 7 8
VIN+ VINVCC1 GND1 RESET FAULT LED+ LEDHCPL316J
WOUT 10 11 3 4 5 8 9 6 7 2 +5V
W-Hall
W-DOWN-DRV
V-DOWN-DRV
Current detect circuit
A
U-DOWN-DRV
BKE-DRV
NTC
LF347
R25 10K
N
1
A
little power inverter Part Drives Circuit
1 Power circuit
2 connect circuit
A
A
1
2
3
4
1
2
3
4
Power circuit
D19 BYV96E D R29 R31 R50 VS C71 104/63V D24 LED R80 R82 CS DZ13 6 5 4 3 2 1 CON6 VF CS G N VS 1N4728 D10 BYV27-200 R16 N R17 VBUT+ R10 UT-GND C16 104 C12 104 DZ1 6.8V C14 100UF/25V C9 UTB VT+ R13 VT-GND C22 104 C18 DZ4 104 6.8V C20 100UF/25V C15 VTWT+ R30 WT-GND A WTC42 104 C30 104 DZ7 6.8V C38 100UF/25V C21 100UF/25V R14 C26 104/63V 100UF/25V R24 C32 104/63V C37 220UF/35V 11 6 D5 BYV27-200 10 C31 220UF/35V VB2A 8 9 C61 220UF/35V C74 104/63V D4 BYV27-200 12 D15 BYV27-200 7 100UF/25V R15 C27 104/63V C33 220UF/35V 13 4 D22 BYV27-200 C65 220UF/35V C81 104/63V B C29 104/63V C35 220UF/35V D8 BYV27-200 1 5 BYV27-200 14 D18 BYV27-200 D16 BYV27-200 -15V 24V 15 C76 220UF/35V D6 D7 VB+ C28 104/63V C34 BYV27-200 220UF/35V 2 C77 220UF/35V C70 104 3 17 D20 BYV27-200 +15V C R25 R37 R45 G Q2 D13 BYV96E R71 D21 BYV96E 18 BYV27-200 C52 N R61 221/2KV R67 C60 103/2KV 16 19 D23 BYV27-200 220UF/35V D17 VF L1 10uH C92 104/63V C88 220U/35V +5V T1 C62 R68 104/63V VPN D
this circuit linear is not good which had been changed
DVCC to cpu
R2 4 3
U1
1 R12 2 C5 R15
D 24V
C2
TLP181 R9 4 C3 R10 4 C4 R11 4 C11 3 TLP181 R22 4 C12 AGND ACOM' R23 4 C18 B3 3 TLP181 3 TLP181 3 TLP181 10V 5V DVCC to cpu R24 2 U4 1 3 TLP181 DVCC to cpu AGND ACOM' 2 R14 U3 1
C66
C82 DZ19 100U/25V 1N4744 J4
C
C69 104
VB2+
It is not the very good circuit. only reference
1
2
3
4
1
2
3
4
D +10V R1 R5 from cpu R4 R3 C1 Q1 BC817 Q2 BC807 R7 R6 R8
C1 C2 R5
U V W
DIODE
2
B K
Q7
C?
CAP
N
DRIVE VOLTAGE B
select
2
7 SPWM TO IGBT
3 drive circuit
B
control circuit
CPU SPWM OP
1
SMPS
24VDC FAN VOLTAGE FAN KEY connector
4 current protect / detect circuit
to cpu
OC
C10 470P
V/C 3 C11 0.1u
R16 Z2
5 7 6 LF353 R25
Iv
F r o m h a ll
How to design the protect time?
VREFI
B R24 C13 R22 +15 0.1u 8 U4A 3 1 2 LF353 4 C14 -15 0.1u R27
19
20
18
13
15
17
6 5
VOUT
V-Hall R19 10K
16 U-UP-DRV
PB
WOUT
P'
P
U5
LF347
R S
21 22 23