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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 … Read more2 Simple Automatic Transfer Switch (ATS) Circuits

Lead Acid Battery Charging, Maintenance Tips

The post discusses some of the crucial parameters related to lead acid battery charging, maintenance tips for ensuring longer life to the device. The questions were asked by Mr. Raja Gilse, answered by me. What is Full Charge Voltage of a 12V Battery Question: What is the full charge volt of the 12 v 110 … Read moreLead Acid Battery Charging, Maintenance Tips

3-Phase Signal Generator Circuit using Opamp

Many a times we find it crucial and handy to possess a true three phase signal for evaluating many different electronic configurations such three phase inverters, three phase motors, converters etc. Since it’s not so easy to incorporate single phase to three phase conversion quickly we find this particular implementation difficult to acquire and enforce. … Read more3-Phase Signal Generator Circuit using Opamp

Automatic Voltage Regulator (AVR) Analyzer

The post below discusses an automatic voltage analyzer circuit which can be used for understanding and verifying the output conditions of an AVR. The idea was requested by Mr. Abu-Hafss. Technical Specifications I want to make an analyzer for Automotive Voltage Regulator (AVR). 1. The three wires of the AVR are connected to the corresponding … Read moreAutomatic Voltage Regulator (AVR) Analyzer

Car Speed Limit Warning Indicator Circuit

The following post describes a simple yet useful car speed limit warning indicator circuit which can be used in vehicles for getting an instant indication of a possible over speed limit conditions. The idea was requested by Mr. Abu-Hafss. Technical Specifications: Shall appreciate, if you could design a circuit to warn with some melody that … Read moreCar Speed Limit Warning Indicator Circuit

Car Turn Signal Flasher Circuit with Lamp Malfunction Indicator

The post discusses an automotive/car turn signal indicator circuit idea with a built-in load malfunction indicator, meaning an additional LED lamp fitted on the dashboard which would warn if any of the side indicators went bad or fused. The idea was researched and requested by Mr. Abu-Hafss. The Circuit Concept I have found a transistor-based flasher including a relay. I have … Read moreCar Turn Signal Flasher Circuit with Lamp Malfunction Indicator

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