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c) Battery temperature detection
The thermistor inside the lithium ion battery pack measures the internal battery
temperature and detects whether the battery is installed or not. This thermistor is
connected between the T terminal and negative terminal of the battery pack. ASIC
uses the A/D value of the thermistor's output voltage, THBAT, to determine whether
the battery temperature is normal. If it is, the recharging will begin.
4-43
BJC-50
Part 4: Technical Reference
TABLE 4-4 BATTERY TEMPERATURE
Battery temperature THBAT
-30°C
≥
THBAT
0°C
≥
THBAT
0°C
≥
THBAT
45°C
≥
THBAT>0°C
THBAT > 45°C
THBAT > 60°C
A/D value
965~1024
814~1024
835~1024
408~813
0~407
0~336
Determination by THBAT
No battery
Cannot start recharging
Recharging stop
Permission to start recharging
Cannot start recharging
Recharging stop
Vcc1(+5V)
THBAT
Lithium Ion
Battery Pack
IC 11
IC 6
ASIC
AD 3
ICP 2
C
T
Thermistor
Analog
Switch
Figure 4-30 Battery Temperature Detection Circuit
Summary of Contents for BJC-55 Series
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Page 75: ...Code page 860 Code page 863 2 23 BJC 50 Part 2 Product Specifications...
Page 76: ...Code page 865 Code page 857 Part 2 Product Specifications BJC 50 2 24...
Page 77: ...Code page 855 Code page 852 2 25 BJC 50 Part 2 Product Specifications...
Page 78: ...Code page 864 Code page 869 Part 2 Product Specifications BJC 50 2 26...
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Page 166: ...4 ADJUSTMENT No parts need to be adjusted Part 5 Maintenance BJC 50 5 4...
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Page 219: ...B 1 2 1 1 4 5 See FIGURE 7 3 6 7 PRINTER SET FIGURE 1 B PARTS LAYOUT PARTS LIST...
Page 223: ...B 5 1 2 S3 S2 S4 S3 S3 3 4 FIGURE 3 CONTROL BOARD...
Page 225: ...B 7 1 S2 2 4 3 FIGURE 4 PRINT UNIT LOWER CASE UNIT...
Page 227: ...B 9 4 4 4 4 3 3 3 3 2 S2 1 FIGURE 5 PRINTER BASE UNIT...
Page 229: ...B 11 FIGURE 6 CONTROL BOARD COMPONENT TOP VIEW BOTTOM VIEW...
Page 237: ...B 19 FIGURE 7 AC ADAPTER 2 3 4 5 1...
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Page 241: ...T1 FIGURE 8 TOOL D 1 D TOOL...
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