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Automatic Generator Choke Actuator Circuit

Last Updated on January 2, 2024 by Swagatam 2 Comments

automaticchokeoperatorcircuit

In this post I have explained a simple automatic generator choke actuator circuit using a straightforward delay OFF timer circuit and a solenoid device.  The circuit was requested by Mr. Bob Perry. Technical Specifications I’m in need of a time delay schematic for the following project. I have an electric generator that I can start by […]

Filed Under: Voltage Control and Protection Tagged With: Actuator, Automatic, Choke, Generator

Tilt Sensor Switch Circuit

Last Updated on June 14, 2019 by Swagatam 4 Comments

tiltsensorcircuit

The articles presents a simple water triggered switch which is effectively implemented as a super simple tilt sensor circuit. Let’s know more. Easy to Build Circuit Ready availability of cost effective components can be deployed to fabricate tilt sensor alarm in ultra transistor based simple circuit. The domestic version of tilt sensor explained here is […]

Filed Under: Sensors and Detectors Tagged With: Sensor, Switch, Tilt

Treadmill Motor Speed Controller Circuit

Last Updated on January 3, 2025 by Swagatam 356 Comments

In this post I have explained a simple, accurate, high torque treadmill motor speed controller circuit which may be effectively installed in similar units for acquiring PWM controlled variable speed feature. The idea was requested by Mr. Samuel. Technical Specifications I’ve a treadmill whose power failed completely…it had been imported from china and it’s like […]

Filed Under: Motor Controller Tagged With: Controller, Motor, Speed, Treadmill

Control Two Submersible Pumps Alternately

Last Updated on June 20, 2019 by Swagatam 31 Comments

submersiblewaterpumpcontrollercircuit

In this post I have explained a simple water level controller circuit applicable for automatic toggling of two submersible water pumps alternately in response to a predetermined water level switching. The entire circuit is built using just a single IC and a few other passive parts. The idea was requested by one of the interested members of […]

Filed Under: Water Controller Tagged With: Alternately, Control, Pumps, Submersible

IC 4033 Pinouts, Datasheet, Application

Last Updated on February 28, 2023 by Swagatam 4 Comments

IC4043pinoutdatasheet

In this article I have explained the main features, specifications and datasheet of the IC 4033 through a detailed technical analysis. Electrical Characteristics How IC 4033 Works The IC 4033 is another Johnson decade counter/decoder IC specifically designed for working with 7 segment displays. Basically it’s a clock or pulse counter IC which responds to […]

Filed Under: Datasheets and Components Tagged With: 4033, Application, Datasheet, Pinouts

2 Simple Automatic Transfer Switch (ATS) Circuits

Last Updated on January 19, 2025 by Swagatam 105 Comments

automatictransferswitchcircuit

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 […]

Filed Under: Grid and 3-Phase Tagged With: ATS, Automatic, Circuits, Simple, Switch, Transfer

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