Block Diagram

485_A
AC 120V 60Hz
FUSE
250V 5A
FILTER
FUSE
250V 3A
Bridge
Diode
(KBP306G)
P14V
7VCC
12V
24V
T1VD
B1VD
T2VD
T3VD
T4VD
T5VD
BVD
+7V
-7V
AVCC
Switching
FET
(TOP-267)
VFB
PHOTO
COUPLER
(EL1018)
P14V
+7V
LDO1
(MIC391)
LDO3
(KIA79L0
5)
+7V
VCC 5V
+7V
-5V
LDO4
(KIA78L0
5)
AVCC
A5V
DSP
(DSPIC33CK256MP)
VCC 3V3
EEPROM
(M24C16)
SCL0
SDA0
Thermal
Sensor
VCC 3V3
VCC 3V3
ADC0
OSC
(24MHz)
VCC 3V3
MCLK
Authority
(PIC12F18
22)
VCC 3V3
UART_TX
UART_RX
UART
(ZT485)
485_TX
485_RX
485_EN
A5V
485_B
C
O
N
12V
24V
485_A
485_B
To MAIN B/D
C
O
N
C
O
N
NTC1
NTC2
Thermal Resistor
Switching
FET
(NTPF082)
Switching
FET
(NTPF082)
Current
Sensor
(HLSR20)
T1G
B1G
AC_CUR
Switching
FET
(KGT15)
SMPS Converter
MAIN AC-DC CONVERTER
Main DC+
H Bridge
FET
(KGT15*4EA)
DC+
T2G
B2G
T3G
B3G
Relay
Switch
(G2RL-14-E)
C
O
N
CDI1+
NDI1
Current
Sensor
(HLSR20)
CDI1-
H Bridge
FET
(KGT15*4EA)
DC+
T4G
B4G
T5G
B5G
Relay
Switch
(G2RL-14-E)
C
O
N
CDI2+
NDI2
Current
Sensor
(HLSR20)
CDI2-
RLY1
RLY2
LDO2
(LM1117)
VCC 5V VCC 3V3
CDI2_CUR
CDI1_CUR
OP AMP
(TL074IDR)
PHOTO
COUPLER
(ACPL-C79A)
LDO5
(LM3480)
7VCC
AC_INPUT
AC_INPUT
VAC+
VAC-
DC+
CDI1+
CDI1-
CDI2+
CDI2-
VCC 5V
-5V
DSP_CDI1
DSP_VAC
DSP_CDI2
DSP_VDC
DRR_G
PHOTO
COUPLER
(TLP5702)
VCC 5V
BUF_T1
VCC 5V
BUF_T2
T2G
VCC 5V
BUF_T3
T3G
VCC 5V
BUF_T4
T4G
VCC 5V
BUF_T5
T5G
PHOTO
COUPLER
(ACPL-
332)
VCC 5V
BUF_B1
B1G
PHOTO
COUPLER
(ACPL-
332)
VCC 5V
BUF_B2
B2G
PHOTO
COUPLER
(ACPL-
332)
VCC 5V
BUF_B3
B3G
PHOTO
COUPLER
(ACPL-
332)
VCC 5V
BUF_B4
B4G
PHOTO
COUPLER
(ACPL-
332)
VCC 5V
BUF_B5
B5G
FLT_TB1
FLT_TB2
FLT_TB3
FLT_TB4
FLT_TB5
T1G
PHOTO
COUPLER
(TLP5702)
PHOTO
COUPLER
(TLP5702)
PHOTO
COUPLER
(TLP5702)
PHOTO
COUPLER
(TLP5702)
PHOTO
COUPLER
(ACPL-
332)
VCC 5V
DC_BRK
DRR_G
FLT_DBR
DSP_T1
DSP_B1
DC_BRK
BUF_T1
BUF_B1
DC_BRK
LOGIC
Transceiver
(TL074IDR)
DSP_T2
DSP_B2
DSP_T3
DSP_B3
DSP_T4
DSP_B4
DSP_T5
DSP_B5
LOGIC
Transceiver
(TL074IDR)
BUF_T2
BUF_B2
BUF_T3
BUF_B3
BUF_T4
BUF_B4
BUF_T5
BUF_B5
VCC 3V3 VCC 5V
VCC 3V3 VCC 5V
BUF_ON
BUF_ON
NAND
(MC74HC)
FLT_DBR
FLT_TB1
FLT_TB2
FLT_TB3
FLT_TB4
FLT_TB5
BUF_ON
AC_INPUT
PH
VAC+
VAC-
PH
Heat sink
DRV_FLT
DRV_RST
C
O
N
To PUMP
PUMP
Switch
Circuit
AC_INPUT
PUMP_ON
To FAN
FAN_PWM
24V
DSP_T2
DSP_B2
DSP_T3
DSP_B3
DSP_T4
DSP_B4
DSP_T5
DSP_B5
DSP_T1
DSP_B1
DC_BRK
PUMP_ON
FAN_CHK
FAN_PWM
RLY1
RLY2
DRV_RST
DRV_FLT
FLT_DBR
FLT_TB1
FLT_TB2
FLT_TB3
FLT_TB4
FLT_TB5
NTC1
NTC2
AC_CUR
CDI1_CUR
CDI2_CUR
DSP_CDI1
DSP_VAC
DSP_CDI2
DSP_VDC
T5G
Contents
Voltage Line
Switch Control Line
ADC Feedback Line
Logic control Line
Logic Feedback Line
C
O
N
FAN_CHK
Power block
Power check block DSP block
Transceiver block
NDI block
Switch block
(U5)
(U18)
(U101)
(OSC2)
(CN2)
(U45)
(U62)
(U8)
(U6)
(U37)
(U7)
(ISO2)
(U19)
(T44)
(U3)
(PC100)
(F1)
(BD2)
(U2)
(U1)
(U33)
(U4)
(T9)
(FET_T1)
(FET_B1)
(CT3)
(FUSE-U)
(FET_B6)
U5
(PC-T1)
(PC-T2)
(PC-T3)
(PC-T4)
(PC-T5)
(PC_B1)
(PC_B2)
(PC_B3)
(PC_B4)
(PC_B5)
(PC_B6)
(NTC_AC)
(NTC_DC)
(CT2)
(CT4)
(RLY1)
(RLY2)
(DC1-OUT)
(DC2-OUT)
(PUMP)
(FAN)