In this post I have explained a 2 simple, single chip digital potentiometer circuits which can be controlled through a single pushbutton, a dual pushbutton (up/down) or even through external digital (CMOS/TTL) input triggers. 1) About DS1869 Dallastat TM is a rheostat or potentiometer. This unit delivers 64 conceivable consistent tap outputs over the over-all […]
Circuits
Inductors in AC/DC Circuits Explained
In this post I have explained the response of inductors to DC and AC voltages as well as when applied with capacitors which is often used as a complementing part with an inductor. Properties of Inductor Inductors are known for their property of storing electrical energy in them in the form of magnetic energy. This […]
2 Simple Automatic Transfer Switch (ATS) Circuits
In this article we investigate an ATS circuit for initiating an automatic changeover from mains supply to generator supply through many intermediate transfer stages which involves activating the fuel valve, choke valve and the generator starter. The circuit was requested by Mr. Hari, and another dedicated reader from this blog. Requirement for 5kva LPG Generator […]
2 Simple Induction Heater Circuits – Hot Plate Cookers
In this post I have explained 2 easy to build induction heater circuits which work with high frequency magnetic induction principles for generating substantial magnitude of heat over a small specified radius. The discussed induction cooker circuits are truly simple and uses just a few active and passive ordinary components for the required actions. Update: You […]
5 Useful Motor Dry Run Protector Circuits Explained
The 5 simple dry run protector circuits presented here shows simple methods by which insufficient water conditions inside an underground tank can be sensed without introducing probes inside the underground tank, and thus preventing any possibility of motor dry running. The circuit also incorporates an overhead water overflow control feature. The idea was requested by […]
Battery Voltage Monitor Circuits using LM324 and LM3915 ICs
The post describes simple battery charge monitor circuits or battery status indicator circuits using 4 LEDs to 10 LEDs, and using ICs like LM324 and LM3915. The first design is a 4 LED voltage monitor circuit using the versatile IC LM324. The idea was requested by Ms. Piyali. Technical Specifications I’ve a project, if you […]