L200 查看數據表（PDF） - STMicroelectronics

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L200

ADJUSTABLE VOLTAGE AND CURRENT REGULATOR

STMicroelectronics 

Figure 26. High Input and Output Voltage.

L200

Figure 27. Constant Current Battery Charger.

Figure 28. 30 W Motor Speed Control.

The resistors R1 and R2 determine the final charging volt-

age and RSC the initial charging current. D1 prevents dis-

charge of the battery throught the regulator.

The resistor RL limits the reverse currents through ther

regulator (which should be 100 mA max) when the bat-

tery is accidentally reverse connected. If RL is in series

with a bulb of 12 V/50 mA rating this will indicate incor-

rect connection.

Figure 29. Loww Turn on.

Figure 30. Light Controller.

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