Dual Battery Charger with Isolator Circuit

Aug 31, 2013

The post explores an innovative automatic dual battery charger with isolator circuit for alternators and engines, which allows monitoring of the charge levels of two individual batteries, and switching them across the loads appropriately. The idea was requested by Mr. Daz.

1.5V to 12V DC Converter Circuit for Illuminating LEDs

Aug 27, 2013

The post provides interesting information regarding the making of a 1.5V to 12V converter circuit using a couple of transistors and an inexpensive coil. The idea was requested by Mr. Keith.

Connecting Batteries in Parallel without Cross Discharge

Aug 26, 2013

The described circuit method of connecting batteries in parallel not only charges and discharges them uniformly across common sources, it also completely isolates them inhibiting any cross-discharging possibility. The idea was requested by Mr. Ron.

10 Step Relay Selector Switch Circuit

The post explains a simple yet useful 10 step selector switch circuit which can be operated using a singe push-to-ON switch. In the following design the circuit is used as a 3 step, single push motor speed controller unit. The circuit was requested by Mr.Edalcor.

Industrial Motion Sensor Circuit

Aug 22, 2013

The post illustrates an industrial motion sensor circuit using a couple of LDRs, an IC and a few other passive components. The circuit senses the movement of a cylinder illuminating the appropriate LEDs for the required detection. The idea was requested by Mr.Hasnain.

Homemade 100VA to 1000VA Grid-tie Inverter Circuit

Aug 19, 2013

The following concept describes a simple yet viable solar grid tie inverter circuit which can be modified appropriately for generating wattage from 100 to 1000 VA and above.

10 Step Battery Charger with Indicator Circuit

Aug 15, 2013

The article shows a simple method of using the IC LM3915 for monitoring battery voltages right from 1.5V to 24V in 10 discrete steps.

Make this Ultraviolet UV Water Filter/Purifier Circuit at Home

Aug 14, 2013

The post describes an easy method of making an ultra violet water purifier circuit using ordinary electronic components.

Make this $1 Solar Battery Charger Circuit

Aug 13, 2013

The post explains a  cheap yet effective, less than $1 cheap yet effective solar charger circuit, which can be built even by a layman for harnessing efficient solar battery charging.

Single Phase AC to Three Phase AC Converter Circuit

The post explains an interesting single phase AC to 3 phase AC circuit. The idea was requested by Mr. Sachin Sinalkar.

3v, 4.5v, 6v, 9v, 12v, 24v, Automatic Battery Charger with Indicator Circuit

Aug 11, 2013

An all-in-one automatic voltage battery charger circuit is discussed in the following post; the circuit can be modified in many different ways as per individual requirements and applications.

5V 3 Amp Fixed Voltage Regulator IC LM123 LM323 Specification, Datasheet, Application Note

Aug 8, 2013

The article explains the main specifications, and application notes of the IC LM123 which is a 5V, 3 amp fixed voltage regulator IC.

Solar Boost Charger with LED Driver Dimmer Circuit

Aug 4, 2013

The article explains a simple solar boost charger with LED driver circuit which also includes a single push dimmable feature. The idea was requested by Mr. Ashutosh.

Zero Drop Solar Charger Circuit without Microcontroller

Aug 3, 2013

The article discusses a simple low drop or zero drop solar charger circuit without microcontroller which can be modified in many different ways as per user preference. The circuit does not depend on microcontroller and can be built even by a layman.

Stun Gun Circuit

Aug 1, 2013

The post explains a high voltage generator circuit which may be employed as a stun gun circuit for keeping intruders from reaching an individual with dangerous intentions.

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