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參數資料
| 型號： | AIC1766-CN14 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | BATTERY CHARGE CONTROLLER |
| 中文描述： | 電池充電控制器 |
| 文件頁數： | 11/15頁 |
| 文件大?。?/td> | 245K |
| 代理商： | AIC1766-CN14 |
AIC1761/1766
BATTERY CHARGE CONTROLLER
SPEC NO: DS-1761-02
ANALOG INTEGRATIONS CORPORATION
www.analog.com.tw
4F, 9 Industry E. 9th Road, Science-based Industrial Park , Hsinchu, Taiwan, R.O.C. TEL: (8863)577-2500 FAX:(8863)577-2510
11
3.
If the battery charge current is high, say, over
1.5A, quality of circuit board layout and wiring
connection points become increasingly im-
portant in the charger circuit reliability.
4.
Critical components need to meet adequate
rating to prevent heating-up of these compo-
nents from causing circuit malfunction.
5.
Since the AIC1761/1766 is fabricated with
CMOS process, cares must be taken in han-
dling this device to avoid possible damage
from electro-static discharge.
EXPERIMENTAL RESULTS
Experiments have been conducted to verify the
AIC1761/1766 operation with NiCd and NiMH
battery cells of various brands. Actual results
shown in the following figures clearly indicate that
the negative delta voltage detector and the peak
voltage timer of the AIC1761/1766 have precisely
detected the tiny cell voltage drops or the cell volt-
age peaks and subsequently terminated the fast
charge process after batteries are fully charged.
The battery cell temperatures were all under
safety levels. Note that the fast charge for the
NiMH battery in Fig. 5 is terminated by the peak
voltage timer (0 V
) while the fast charge for the
NiCd battery in Fig. 6 is terminated by the -
V
detector.
Charge Time (min.)
C
°
C
C
0
20
40
60
80
1.2
1.3
1.4
1.5
1.6
Temperature
Voltage
Charge Current = 1A
Cell Capacity = 1000mAH
20
30
40
50
60
AIC1766
AIC1766
Fig. 5
Charge Characteristics of NiMH Battery
Both Fig. 5 and Fig. 6 were obtained by using the
AIC1766. Results of similar experiments by using the
AIC1761 are shown in Fig. 7 and Fig.8.
Charge Time (min.)
C
°
C
C
20
30
40
50
60
0
20
40
60
80
1.3
1.4
1.5
1.6
1.7
Temperature
Voltage
Charge Current=0.7A
Cell Capacity=700mAH
AIC1766
Fig. 6
Charge Characteristics of NiCd Battery
Charge Time (min.)
C
°
C
0
10
20
30
40
50
60
70
1.2
1.3
1.4
1.5
1.6
20
30
40
50
60
Temperature
Voltage
AIC1761
Charge Current = 1A
Cell Capacity =1000mAH
Fig. 7
Charge Characteristics of NiMH Battery
C
0
20
40
60
80
1.3
1.4
1.5
1.6
1.7
Charge Time (min.)
20
30
40
50
60
Voltage
°
C
Temperature
Charge Current=0.7A
Cell Capacity=700mAH
AIC1761
Fig. 8
Charge Characteristics of NiCd Battery
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