AC to DC Bridge Voltage Doubler is simple power supply circuit. It is used to get higher DC voltage from low AC voltage, for example from 9V AC we can get near 18V to 25V DC. Therefore, it is useful when we need high voltage but transformer gives low voltage. Also, this circuit is with […]
High Voltage
9V AC to 38V DC Voltage Tripler Circuit
This project is for simple 9V AC to 38V DC Voltage Tripler Circuit and it converts low AC voltage into higher DC voltage. The input is 9V AC from transformer and the output is around 38V DC without load. It is easy to build as it uses common parts and therefore, it is good for […]
9V AC to 50V DC Voltage Quadrupler Circuit
Like our previous post on Half Wave and Full Wave Voltage Doubler Circuit this post is about a full-wave voltage quadrupler power supply circuit. It converts low AC voltage into high DC voltage for example, 9V AC is converted into approximately 50V DC. Therefore, it multiplies the input voltage almost four times, so it is […]
Half Wave and Full Wave Voltage Doubler Circuit
In many electronic projects, we need a higher DC voltage, but sometimes transformer gives low AC voltage. For example, a 9V AC transformer is common, therefore, we use voltage doubler circuit and this increases voltage without using high voltage transformer. Besides increasing the voltage, this circuit also converts AC into DC. There are two types […]
AC Lamp Flasher Circuit using SCR
This circuit is AC Lamp Flasher using SCR which works directly on 230V AC mains. It is simple and is with low cost project so it is useful for decoration light, warning lamp and festival lighting. Basically, the circuit uses SCR for switching and it also uses RC timing network, because of that the lamp […]
Electronic Mosquito Swatter Bat Circuit
Electronic Mosquito Swatter Bat Circuit is very common device at home and work place. It uses small battery and simple circuit to make big voltage. This big voltage come on mesh net of a bat. When mosquito or fly touches the mesh the current pass through body and insect die quickly. Main idea is to […]





