Sunday, July 26, 2015

Designing a Customized Battery Charger Circuit: Part 3

In our previous tutorials we learned how to customize a constant voltage while building a battery charger, while in the next section we understood how to add a customized constant current to the design for assuring a safe charging for the connected battery. In this section we'll discover how an auto cut-off may be added to a battery charger which is one of the most crucial aspects in such circuits.

Designing a Customized Battery Charger Circuit: Part 2

In our previous tutorial we learned how to design and optimize a constant voltage feature for charging a particular type of battery, in this post we try to understand how to design and include a constant current feature for the same, which is another critical factor to be considered while making a customized battery charger circuit.

Designing a Customized Battery Charger Circuit: Part 1

I have designed and published a variety of battery charger circuits in this website, however the readers often get confused while selecting the right battery charger circuit for their individual applications. And I have to explicitly explain each of the readers regarding how to customize the given battery charger circuit for their specific needs.

Thursday, July 23, 2015

Adding a PWM Multi-spark to an Automobile Ignition

The post investigates a simple 2 pin oscillator circuit which may be inserted between the pickup coil and the CDI unit of a vehicle for achieving an induced multi trigger input in response to each signal from the pickup coil coil, this in turn is expected to enhance the sparking ability of the CDI coil. The idea was requested by Mr. Vimal.

Wednesday, July 22, 2015

Ferrite Core Material Selection Guide for SMPS - Part 1

Ferrite is a wonderful core substance for transformers, inverters and inductors in the frequency spectrum 20 kHz to 3 MHz, owing to the benefits of reduced core expense and minimal core losses.

Monday, July 20, 2015

Make this 3V, 5V, 6V, 9V,12V,15V Dual Power Supply Circuit using LM317,LM337

The purpose of this paper is to detail a variable dual lab power supply circuit. To build the same, we can use variety of voltage levels [3V,5V,6V,9V,12,15V at 1A].

Friday, July 17, 2015

PWM Motor Speed Controller with Adjustable Delay Timer

The post details a simple adjustable PWM motor speed controller with an attached timer circuit so that the motor can be assigned a fixed predetermined operating time, or delay OFF time. The idea was requested by Mr. Cribey

Thursday, July 16, 2015

Transformer Winding Formula Explained

The net magnitude of voltage induced across the primary winding of a transformer to its secondary winding is basically determined by the ratio of the number of turns wound over the primary and the secondary sections.

Tuesday, July 14, 2015

Simple Geyser Water Heater Timer Circuit

 In this post we study a simple water heater timer controller circuit which can be used in bathrooms for automatically switching OFF a geyser or a water heater unit after a predetermined time period as preferred by the user. The idea was requested by Mr. Andreas

Monday, July 13, 2015

Emergency Generator Power Distribution Circuit

The post explains a twin generator network system to be used for two separate houses during power failure and through automatic changeover.The idea was suggested by Mr. Ahmad.
Readers are advised to proceed with the construction of the presented circuits only after understanding the concepts from the core. Not adhering to this can lead to failures and frustrations.
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