Accu Voltage Controller for 4 or 5 NiCd Cells
This Low-Power Battery Voltage Controller for RC Models is flashing with approx. 0.6 Hz, indicating proper function,
if the battery voltage is higher than a adjustable reference voltage. If the battery voltage drops below the reference voltage,
the LED starts flashing with 5 Hz.
Recommended reference voltage : 4.85 - 4.95 V if 4 NiCd Cells are used
If Ud is positive at the LM 311, that means battery voltage is below Uref, the output of the LM 311 is floating (Open Collector of LM 311), so the 1u C is not active (T = 2.7M * 150n).
If Ud is negative, that means battery voltage exceeds Uref, the output is low (Ground), so the 1u C is active
(T = 2.7M * (1u + 150n)).
Power Consumption: 5 - 9 mAh