The post details a simple solar charger circuit with automatic cut-off using transistors only. The idea was requested by Mr. Mubarak Idris.
May 31, 2016
May 27, 2016
The post explains how to make a high power 100V to 220V H-bridge mains voltage stabilizer circuit using automatic PWM control. The idea was requested by Mr. Sajjad.
May 26, 2016
The post discusses a two opamp low high battery charger controller circuit which is not only accurate with its features but also allows a hassle free and quick setting up of its high/low cut-off threshold limits. The idea was requested by Mr. Mamdouh.
May 18, 2016
The post explains a simple knock activated door security alarm circuit which can be installed by anybody for identifying a guest or an intruder at the door. The idea was requested by Mr. Akhilesh.
May 14, 2016
The post shows how to configure a simple LED relay changeover emergency light circuit using a battery back up which gets charged during mains presence and changes over to LED/battery mode as soon as mains fails. The idea was requested by one of the members of this blog.
The article explains a generator/UPS/Battery relay changeover circuit for implementing a customized optimization for a generator, UPS, battery power network, in order to enhance the operational efficiency of the system. The idea was requested by Mr. Sidingilizwe.
May 12, 2016
The discussion tells us regarding what's full charge voltage for lead acid batteries and hysteresis significance in battery charging systems. The questions were asked by Mr. Girish Radhakrishnan.
May 9, 2016
MOVs or metal oxide varistors are devices designed for controlling mains switch ON surges in electrical and electronic circuits. Selecting an MOV for a particular electronic circuit might require some consideration and calculation, let's learn the procedures here.
May 8, 2016
The post explains a battery charger circuit specifically designed for camper and motorhome applications, so it can serve as an effective camper/motorhome battery charger circuit operating through any shore power supply source. The idea was suggested by "music girl".
In most automatic battery charger circuits in this blog you might have seen an opamp with a hysteresis feature included for some crucial function. The following article explains the significance and design techniques for the hysteresis function in opamp circuits.
May 4, 2016
The common collector is a well known transistor (BJT) configuration among the other three basic ones, and is used whenever a transistor is required to be in the buffer mode, or as a voltage buffer.
May 2, 2016
A small transformerless welding machine circuit can be built using a few high voltage, high value capacitors and a rectifier diode, the following article explains more on it. The idea was requested by Mr. Tun.