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Circuit generates an equivalent high power resistance that can be adjusted with a potentiometer.
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A simple circuit using the common CD4049 to generate the Radio PB Function
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Damping factor, and how an amplifier controls voice coil motion.
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Notch filter Q is largely independent of component tolerances and notch frequency adjustment.
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Circuit disconnects battery from operating accessories at a specific voltage to avoid dead battery.
5.00 star(s) 1 ratings
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Simple, efficient, lead-acid battery charger auto switches from CC to CV mode
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One-shot timer uses no power when quiescent, useful for battery powered circuits
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Circuit applies full actuation power to solenoid with PWM hold reducing power to 12-25% of nominal
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Minimal circuit for auto CC/CV charging. Option allows pot adjustment of charge current.
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Two simple high-side sense current limit circuits adjust to zero current and have low voltage drop
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Combination of Binary & BCD counters do Binary↔BCD conversions.
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Inexpensive, single regulator IC power supply with I and V adj. to zero, includes I & T monitors
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Good for low-drop diode applications, such as blocking battery back-charging or brownout protection
4.50 star(s) 2 ratings
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PB alternate action circuit uses CD4013 FF with simple debounce to control relay (or other load).
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Lead-acid battery charger starts with constant-current and ends with constant-voltage trickle charge
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Capacitor resonant charging can nearly double the charge efficiency and quadruple energy stored.
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Circuit outputs the min. or max. value of several analog inputs, or provides accurate bi-level clamp
5.00 star(s) 1 ratings
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