It is quite simple to build a crystal oscillator by using a field impact transistor. This low voltage crystal oscillator circuit functions at comparatively low supply voltages, from 1.5 volts […]
Mains AC Voltage Monitor Circuit
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 […]