Make this Solar Powered Fence Charger Circuit

A Fence charger or energizer is an equipment which is used for charging(electrifying) a fence or a boundary in order to protect the inside premise from human or animal interventions. Since these boundaries are mostly of large fields and parks, are normally away from the main cities, and powering them through some renewable option becomes … Read moreMake this Solar Powered Fence Charger Circuit

A Homemade Fence Charger, Energizer Circuit

The electric fence charger circuit presented here is basically a high voltage pulse generator. The super high voltage is derived from a commonly used automobile ignition coil. An astable multivibrator is used to generate the required frequency to drive the ignition coil. Another astable is used to control the pulses supplied to the fence. Protecting … Read moreA Homemade Fence Charger, Energizer Circuit

Build this Mosquito Bat without Battery

This simple homemade mosquito swatter bat neither requires a circuit nor a battery for the operation. The entire design works using a single high voltage capacitor and through quick charging from mains AC socket. (Designed by me) Introduction In a few of my earlier posts I have discussed how to make mosquito zappers using the … Read moreBuild this Mosquito Bat without Battery

Electronic Door for Pets Circuit – Opens when Pet Nears the Door

The post explains a simple electronic door circuit for pets which can be used as an electronic dog door for allowing only your specific pet dog to use the entrance, while keeping it locked for “strangers”. The idea was requested by Mr. Dave Monette. Circuit Objectives It’s been a while since we talked. I just … Read moreElectronic Door for Pets Circuit – Opens when Pet Nears the Door

Laser Alarm Circuit for Protecting Field Crops against Animals

The post explains a simple laser alarm circuit which can be installed in farms and fields for detecting all possible intrusions, either by a human or an animal and alarming this to the owner, and ensuring an effective protection to the crops against such intrusions. The idea was required by Mr. Mohammed and Mr. Daniel. … Read moreLaser Alarm Circuit for Protecting Field Crops against Animals

Flashing LED Battery Low Indicator Circuit

The post explains a simple low/normal battery voltage status indicator circuit through a flashing and a constant LED, where the flashing LED indicates a normal status while the solid indicator warns against a low battery condition. The idea was requested by Mr.Alf. Technical Specifications Hi, I found and built your “Low Battery Indicator Circuit Using … Read moreFlashing LED Battery Low Indicator Circuit