User`s guide

SMPS AC/DC Reference Design User’s Guide
DS70320B-page 84 © 2008 Microchip Technology Inc.
FIGURE A-10: CONTROL BOARD I/F AND TEMPERATURE SENSING/MISC. SCHEMATIC
5V_OUT
PKSB
5V_REMOTE_NEG
3.3V_REMOTE_POS
TEMP_SENSE
SCL
PKSB
+DIG
5V_BUCK_FW_FIRE
3.3V_OUT
3.3V_REMOTE_NEG
3.3V_OUT_J3P7_IN 3.3V_OUT_J3P9_IN
TEMP_SENSE
5V_OUT
5V_REMOTE_NEG
12V_OUT
DRIVE_SUPPLY
12V_OUT
LIVE_GND
LIVE_DIG_SUPPLY
LIVE_GND
LIVE_SCL
LIVE_SDA
LIVE_GND
|VAC|_SENSE
LIVE_+DIG
PKSA
5V_REMOTE_POS
3.3V_REMOTE_NEG
NEG_OUT
12V_OUT
SDA
PKSA
3.3V_OUT_J3P5_IN
3.3V_REMOTE_POS
5V_REMOTE_POS
DIG_SUPPLY
NEG_OUT
LIVE_+DIG
100nF
LIVE_+DIG
PFC_FIRE
-HV_BUS
HV_LINK_SENSE
LIVE_GND
0.1uF
+DIG
3.3V_BUCK#3_CONTROL_FIRE
3.3V_BUCK#3_FW_FIRE 3.3V_BUCK#2_FW_FIRE
3.3V_BUCK#1_CONTROL_FIRE
5V_BUCK_CONTROL_FIRE
3.3V_BUCK#1_SHUNT_POS_HDR 3.3V_BUCK#2_SHUNT_POS_HDR
5V_OUT
5V_BUCK_SHUNT_POS_SENSE
NEG_OUT
LIVE_SCL3.3V_OUT
NEG_OUT
ZVT_LEFT_LOW_FIRE
ZVT_RIGHT_HIGH_FIRE
SYNCH_RECT_#1_FIRE SYNCH_RECT_#2_FIRE
+DIG
Remote Analog Inputs
MCP9700_SC-70
U11
3.3V_BUCK#2_CONTROL_FIRE
3.3V_BUCK#1_FW_FIRE
NEG_OUT3.3V_BUCK#3_SHUNT_POS_HDR
LIVE_SDA
NEG_OUT
220R
5V_BUCK_SHUNT_NEG_SENSE
3.3V_OUT
J2
0.1uF
LIVE_GND
1
TP
12V_OUT
ZVT_LEFT_HIGH_FIRE
ZVT_RIGHT_LOW_FIRE
BAT54S_SOT23
D39
BAT54S_SOT23
D40
MCP9700_SC-70
U8
D34
BZX84C5V1
LIVE_TEMP_SENSE
PFC_SHUNT_NEG
12V_BUS_ERROR_F/B
LIVE_DIG_SUPPLY
LIVE_DRIVE_SUPPLY
ZVT_CT_|BURDEN|_POS
TC74_TO-220_5PUP
U1