You might want to find out instantly whether or not the mains voltage is running low before starting an important task because the load switch ON might cause an already […]
High Voltage Alarm Circuit
This circuit will raise an audible alarm as soon as the battery voltage goes above a predetermined over voltage limit. The astable section of a high voltage alarm is similar […]
Low Voltage Alarm Circuit
An alarm that gives indication of a low battery voltage, discharged at around 10.5 Volts in vehicles such as Boats and Cars can be made using a simple circuit. It […]
Temperature to Voltage Converter Circuit
Temperature to voltage converter is a device which converts each degree rise in ambient temperature into a corresponding rise in the output voltage from the device. It is easy to […]
Designing a IC 723 Power Supply with Variable Voltage and Current
The article provides tips and design considerations regarding building a well optimized IC 723 regulated power supply circuit. IC L146 is the improved version of IC 723 which can be […]
Two Transistor Voltage Doubler Circuit
The following small circuit will create a DC output that may be nearly 2 times the supply voltage. A square wave input is necessary of adequate amount to switch T1 […]