Canon MVX200 E - 3 Built-In Charger Circuit; Outline

MVX250i E, MVX200i E, MVX200 E
TECHNICAL DESCRIPTION
7
3. Built-in Charger Circuit
3-1 Outline
The main circuit elements and their functions are as follows.
(1) MODE MI-COM
• Control of IC1810
• Detection and display of charging progress
• Error discrimination and display
• Battery type discrimination and DC jack input detection
(2) IC1810 (CHARGE CONTROL)
• Charging voltage and charging current control
Fig. 4
IC1810
MB3833A
CHARGE
CONTROL
IC1811
CHARGE
I DETECT
OSC
OUTPUT
DRIVE
POWER
SAVE
1312
7 8
VCC
14
15 2 3
4
1
3
INIT CHARGE 1
CHARGE
DC +
DC J SW
MAIN P.C.B.
PM SECTION
UNREG
CN3202
BATT.
TERNINAL
CN1801
DC IN OFF
MAIN P.C.B.
JACK1 P.C.B.
MAIN P.C.B.
MODE MI-COM
MAIN P.C.B.
MODE MI-COM
DETECT
+
−
DC JACK
CN3212
CN51
CN3211 CN3201
CN2101
BATT −
BATT INFO AD
BATT +
THERMISTOR
BATTERY
DC J SW
DC V DET
BATT INFO
DC J DET
A/D I
A/D V
DC +
Q1812
Q1813
FU1810
Q1815
Q1814
−
+
−
+
T
4,5
3
1,2
2
23
1
4