Wireless Power Transmission Circuit (DC 12v) - JLCPCB

In this project, we’ll teach you making a wireless power transmission circuit. Wireless Electricity Transfer or WET is a process to supply power through an air gap without using any wires or physical link. It is a useful circuit and you also can use this project circuit as like power supply and a induction stove circuit.

In this wireless system, the transmitter device generates a time-varying or high-frequency electromagnetic field, which transmits power to receiver device without any physical connection.

In this project, we will build a basic low powered wireless transmitter circuit to glow an LED or 3 watt filament bulb.

The article is being published in collaboration with JLCPCB. They supply high quality PCBs at a very reasonable price. They also can provide SMT circuit assembly.

We thanks to our sponsor JLCPCB (https://jlcpcb.com/RTA) for sponsoring us PCBs for this project circuit.

Thanks To JLCPCB.

$2 for 1-4 Layer PCBs.

Get SMT Coupons: https://jlcpcb.com/RTA

To make this wireless power transfer circuit, we might need some electronics component.

All components list have been given below –

Component List –

• Mosfet – IRF 250 N
• Diode – 1N 5399 *2
• Resistor – 220 Ω, 10 KΩ
• Metallized Polypropylene Film Capacitor – 105J 400v *4
• Toroidal Coil
• Output Sockets

The metal–oxide–semiconductor field-effect transistor, also known as the metal–oxide–silicon transistor, is a type of insulated-gate field-effect transistor that is fabricated by the controlled oxidation of a semiconductor, typically silicon.

Its 3 legs pin-out can be seen above -

• Gate
• Drain
• Source

• Simple design
• wireless mobile charger
• Lower frequency
• operation Low cost
• Practical for short distance
• Wireless LED glow
• wireless filament bulb glow

To make this wireless power transmission circuit, we might need some electronics component. JLCPCB has its own parts library. JLCPCB has 200k+ in stock components, 24 hours rapid SMT assembly. You can check SMT parts library here.

The schematics of PCBs can be seen above.

To make this wireless power transmission circuit, 1st we connect one mosfet “source” leg with another mosfet “source” leg. Then we make a parallel connection in these Metallized Polypropylene Film Capacitor.

Now we connect both 220 Ω resistor one side terminal with toroidal coil, and then connect it’s other two terminal with “Gate” leg of mosfet.

Then we connect rectifier diode with the circuit. We connect rectifier diode negative terminal with “Drain” leg of mosfet and rectifier diode positive terminal with “Gate” leg of mosfet. We follow the same method connection for another rectifier diode also.

We utilize JLCPCB https://jlcpcb.com/RTA to printout our PCB.

To make this circuit, we used a hand made toroidal coil. It’s have three terminal. Two side have (zero) 0 turns and 1 side have 80 turns. We connect it’s 0 (zero) turns terminal with both mosfet “Drain” leg and it’s 80 turns leg with 220Ω resistor.

Now we connect 10K resistor with the circuit. We connect this two resistor with both mosfet “Gate” and “Source” leg.

For wireless transmission, now we make a coil. Copper wire gauge would be 47mm and there would be 6 turns. We connect this coil two terminal with two mosfet “Drain” leg.

Now we just need to connect DC-12v power supply circuit. We connect its positive leg with toroidal coil 80 turns socket and it’s negative leg with “Source” leg of mosfet.

Thanks to JLCPCB for offering us, this SMT PCB circuit.

Neat and perfect soldering is an important part of all kind of PCBs. Since soldering, you should remember that, there should not be any kind of short circuit. After soldering all leg, we cut-off the extra leg of all electronics component.

If you complete design of your PCBs, then it is time to order PCBs. To order best quality PCBs, just visit JLCPCB and click on the “QUOTE NOW” button.

Since 2006, JLCPCB continuously driven to become more efficient and to reduce costs. They promise to offer customers the most economic PCBs forever. JLCPCB makes cheapest but top quality PCBs possibly because of scale effect, extremely high production efficiency and less manpower cost.

You can order minimum 5 pieces PCBs for only $2 costs.

To order PCBs, make your Gerber file. Then drag and drop the Gerber file on the following box.

Click on “Gerber Viewer” button you can check the PCBs design. Make sure everything is good, then choose color, quantity and order your PCBs at very reasonable

To order your SMT PCBs, visit JLCPCB - https://jlcpcb.com/RTA

1. Drag and drop SMT PCBs file on site.

2. Choose your PCBs color and quantity.

3. To free SMT assembly for your PCB click on “SMT Assembly” button and then confirm.

4. Add your Bom file and CPL file.

5. Place your order click on “Save to Cart” button.

6. Confirm your shipping address and shipping method.

7. Pay your payment

8. Wait for confirmation mail.

9. For SMT Service, Click here - https://jlcpcb.com/smt-assembly

JLCPCB supported all shipping method can be seen below.

Estimated Delivery Time -

• DHL International Express 3-5 business days
• UPS Worldwide Saver 3-6 business days
• S.F Express(Standard) 5-8 business days
• S.F Express(Economy) 8-15 business days
• Singapore EMS 8-15 business days
• PostLink Registered Mail 15-20 business days
• ePacket 15-25 business days
• Registered Air Mail 15-20 business days

JLCPCB supported Payment method -

• PayPal
• Credit/Debit Care
• Prepaid wire transfer

To confirm your order, pay your payment. Then accept PayPal, Credit/Debit Card, Prepaid Wire Transfer. To manufactured your PCBs, it’ll takes about 2 days. DHL will be fastest shipping method to arrive your ordered PCBs at your location.

All PCBs were well packed and quality was really good.

Thanks to JLCPCB for best quality PCBs.