The post discusses a relatively easy lipo battery balance charger circuit which is designed to continuously scan and charge the connected cells of the battery. The idea was requested by Mr. Schindler and Mr. Emil Jan Thomas Baticulon.
Aug 27, 2015
The post explains a simple mains to generator automatic transfer switch (ATS) which features an initial petrol start which switches to an LPG gas supply via fuel valve changeover switches. The idea was requested by Mr. Junaid.
Aug 25, 2015
In this post we learn about a high power car siren circuit which utilizes ordinary components such as transistors and capacitors yet is able to produce an alarm sound at an excruciating level. The idea was contributed by "Abu-Hafss"
Aug 24, 2015
As we already discussed, conventional PIR modules are able to detect only moving living objects and cannot identify a stationary target which makes its application limited as a human motion detector only.
Aug 23, 2015
The post explains a method which can be probably used for enhancing a passive infrared sensor ability to detect even a static or stationery human presence. This feature is normally not possible with the conventional PIR sensors.
Aug 22, 2015
The post details a simple sound activated relay switch circuit which can used as a module for any system that might be assigned to trigger by detecting some kind of sound pressure level.Or simply applications such as a sound activated alarm security circuit.
In this post we learn to make a simple sequential delay timer generator circuit which can be used for getting a sequential triggering of a connected load, or can be simply used like a sequential LED bar graph effect generator, using only transistors. The idea was requested by Mr Babusan.
Aug 19, 2015
The post explains a circuit idea which can be used as a power monitor and control system for ensuring that only the specified amount of watts is allowed to enter into the allocated socket, as per the maximum calculated wattage of the appliances connected across those points. The idea was requested by Mr. Bob Rudman.
The IC LM321 is the single opamp version of LM 324 which is a quad opamp IC and carries 4 of these ICs in one package. Therefore for applications which demand a single opamp with the attributes of the versatile LM324, in such cases this single opamp can be utilized effectively.
Aug 18, 2015
The following email discussions were sent to me by Mr John Sweden who is one of the avid readers of this blog, here he explains about an USB isolator device, and how it may be incorporated while using an oscilloscope with a PC, in order to safeguard the oscilloscope and the test circuit from accidental high volatges. Let's learn more.
Aug 17, 2015
The post details a simple fading LED light effect generator circuit which can be set for operating in fish aquariums in the prescribed manner for a predetermined length of time. The idea was requested by Mr. Jaco.
Aug 14, 2015
The post discusses a simple circuit design which ensures a perfectly stabilized mains voltage across the connected load, without using relays or transformers, rather by the use of accurately dimensioned and self adjusting PWM pulses. The idea was requested by Mr. Mathew.
Aug 10, 2015
In our previous post we discussed regarding how a flywheel can be used for generating excess electricity from its stored potential energy when it's given a swift spin using an external torsional force. In this article we'll learn how the system can be made into a perpetual motion without the need of any external intervention.
In this article we investigate the flywheel concept and learn how it may be used for charging batteries and also enhance to work at the overunity level.
Aug 7, 2015
The post explains a remote controlled automatic transfer switch for enabling an automatic grid to generator chnageover action from a specified distance. The idea was requested by Mr. odudu johnson.
Aug 6, 2015
In this post we learn how to make a simple classroom debate timer circuit which can be used to illuminate two sequentially toggling lamps to indicate the start and finish of the lecture time delivered by the respective members in the class. The idea was requested by Animale.