The discussed circuit is designed to discourage dogs from barking in the selected zone by the generation of a synchronized ultrasonic sound waves in response to a few initial barking […]
Search Results for: sensor
SMPS Voltage Stabilizer Circuit
The article explains a solid state switch-mode mains voltage stabilizer circuit without relays, using a ferrite core boost converter and a couple of half-bridge mosfet driver circuits. The idea was […]
How to Make a GHz Microwave Radar Security Alarm Circuit
The post explains a GHz microwave radar security alarm circuit which is designed to detect an intruder within the critical zone only while it’s moving, static objects produce no effect […]
How to Modify SMPS for Adjustable Current and Voltage Output
This article discusses a method through which any ready made SMPS can be converted into a variable current smps circuit using a few external jumper links. In one of the […]
Car Blown Brake Light Indicator Circuit to Detect Broken Bulb Filament Tail Light
The post explains a simple fused or blown car brake light indicator circuit using a single IC 555 and a few other passive components. The idea was requested by Mr. […]
Water Flow Valve Timer Controller Circuit
The article details about an automatic water flow controller timer circuit which switches a valve mechanism ON/OFF as per a set predetermined timing sequence. The idea was requested by Mr. […]