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参数资料
| 型号： | AN1593 |
| 厂商： | Motorola, Inc. |
| 元件分类： | 基准电压源/电流源 |
| 英文描述： | LOW COST 1.0 A CURRENT SOURCE FOR BATTERY CHARGERS |
| 中文描述： | 低成本1.0电流源的电池充电器 |
| 文件页数： | 7/8页 |
| 文件大小： | 212K |
| 代理商： | AN1593 |
7
MOTOROLA ANALOG IC APPLICATIONS INFORMATION
Post–Design Recommendation
In some cases, there is a need to compensate for a small
voltage drop on the constant–voltage part of the V/I
characteristic of this current source or to compensate a
voltage drop across wires leading from the output of the
current source to the charged battery. In that case, it is
possible to add a resistor between Pin 5 of the MC33341 and
the ground of the circuit shown in Figure 3.
Conclusion
The LM2575–ADJ step–down converter and the
MC33341 regulator control circuit used in the battery charger
applications offer a solution which is simple, highly efficient
and cost effective. The two current sources for battery
chargers described in this paper can operate directly from
both 12 and 24 V board voltages with no change of the
electrical connection. This fact makes these applications
especially suitable for the automotive industry.
REFERENCES
1. LM2575 Data Sheet and Application Note; order from Motorola by LM2575/D.
2. MC33341 Data Sheet and Application Note; order from Motorola by MC33341/D.
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