Schematic Diagrams

Useful schematic and wiring diagrams. ✔ ✔ Enjoy electronic circuits, let your idea comes to hardware


Cheap 12V to 220V Inverter

Even though today’s electrical appliances are increasingly often self-powered, especially the portable ones you carry around when camping or holidaying in summer, you do still sometimes need a source of 230 V AC – and while we’re about it, why not at a frequency close to that of the mains? As long as the power […]

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Inverter Circuit For Soldering Iron

Here is a simple but inexpensive inverter for using a small soldering iron (25W, 35W, etc) In the absence of mains supply. It uses eight transistors and a few resistors and capacitors. Transistors Q1 and Q2 (each BC547) form an astable multivibrator that produces 50Hz signal. The complementary outputs from the collectors of transistors Q1 […]

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Voltage Inverter Using Switch-Mode Regulator

This circuit uses a step-up switch-mode regulator, which is usually used to produce a positive supply, to generate a regulated negative output voltage. The device used here is the MIC4680 from Micrel (, but the idea would of course work with similar regulators from other manufacturers. Because of coil L1, which performs the voltage conversion […]


12V Flourescent Lamp Inverter

Fluorescent tubes use far less energy than incandescent lamps and fluorescent tubes last a great deal longer as well. Other advantages are diffuse, glare-free lighting and low heat output. For these reasons, fluorescent lighting is the natural choice in commercial and retail buildings, workshops and factories. For battery-powered lighting, fluorescent lights are also the first […]

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100W Inverter Circuit Schematic

Here is a 100 Watt inverter circuit using minimum number of components. I think it is quite difficult to make a decent one like this with further less components.Here we use CD 4047 IC from Texas Instruments for generating the 100 Hz pulses and four 2N3055 transistors for driving the load. The IC1 Cd4047 wired […]


Discrete Voltage Inverter

The circuit in the diagram enables a negative voltage to be derived without the use of integrated circuits. Instead, it uses five n-p-n transistors that are driven by a 1 kHz (approx) TTL clock. When the clock input is high, transistors T1 and T2 link capacitor C1 to the supply voltage, UIN, which typically is […]


Inverter 12V to 220V 100W by Transistor

This circuit power Inverter 100W, it easy and good ideas. When use the electric appliances that want 220V AC 50HZ, which have small-sized about 100Watt not exceed. By when you apply outside home, as a result have to have Mini power inverter about 100Watt, perform modify from work electricity forces of battery 12V give tall […]

12V To 220V 50Hz Inverter 50W by M706B1

Circuit 12V To 220V 50Hz Inverter 50W by M706B1 PCB 12V To 220V 50Hz Inverter 50W by M706B1 Most Wanted Diagrams:pcb layout 12v 50w


R.E.E.Robinson VK2ILV 7 Roland Ave. Wahroonga 2076 Sydney, N.S.W. AustraliaAn inverter power supply suitable for valve radios is described.This inverter uses a small single sided Printed Circuit Board (PCB). Use the overlay to position the components. Test all the resistors, diodes, transistors, and capacitors before using them. The transformer and Integrated Circuit (IC) are difficult […]

110VAC Inverter for Automobile by 555,4020,4049,IRF530

This circuit will allow you to operate small devices like laptop computers inside your automobile without an expensive automobile power supply. The circuit takes advantage of the fact that power transformers are linear devices and can be used to step up as well as step down. This is evident by the fact that the supply […]

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