ICOM IC-2A Fast Battery Charger
Source: InternetPublisher:明天见 Keywords: Power charging circuit Updated: 2020/09/29
The voltage is rectified and filtered through a 24V AC transformer and fed to the LM723 voltage regulator and NPN pass transistor for constant current power supply. Before pressing the momentary button (S2), the 470 ohm resistor limits the trickle current, the SCR opens and current flows through the resistor network previously determined to limit the charging current.
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