The faculty to forward electricity wirelessly has been nearly because a expect time. at recent years, wireless charging of consumer electrical devices has cost common. The simplest wireless circuit consists of only a handful of parts. at the too least, it consists of a force source, a transistor, an antenna coil, a receiver coil, and naturally something to force at the receiver purpose also known because a load.
1) amass materials.
You will need:
- copper wire
- 2n2222 or pn2222 transistor
- Battery holder
- 2-inch diameter PVC
- Electrical tape or condense tube
2) Wrap the receiver coil.
Wrap copper wire
nearly PVC 15 ripen tightly to compose a coil, leaving ~1-inch additional at because noise side. Wrap tape nearly the coil to assure it doesn't grow apart.
3) Strip ~1/2 inch of the Cable jacket off of the conductors at each end. This get to exist done at each connection.
4) Attach the LED to the receiver coil.
Wrap the one of 1-inch leads we left at the receiver at the prior step nearly because noise of the LED leads. cite because the remaining leads. Wrap tape nearly each connection to obtain at place.
- You will notice that the leads of the LED are various lengths: one is the definite anode, the other is the negative cathode. The longer of the two is the anode. at this application it won't matter, besides good to learn because noise way.
5) Wrap the transmitter coil. Using the too PVC, wrap the thread 7 times. after the seventh grow compose a moment loop ~1-1/2 inch along ago continuing, and familiar with another 7 turns, leaving ~1-inch additional at because noise side. Wrap tape nearly the coil to assure it doesn't grow apart.
6) Cut the middle of the loop you made at the prior step. Again strip the ends of total Cables, ~1/2 inch. Wrap tape nearly the coil to assure it doesn't grow apart.
7) Twist together the conductors of the chop loop. This will compose a only perform that will exist easier to associate later.
8) Bend the external pins gently away from the middle pin. This will compose the connections easier to manage.
9) Attach the transistor to the transmitter coil. Wrap 1 perform from the transmitter coil nearly perform 2 of transistor, and the other coil perform nearly perform 3 of the transistor, using tape to obtain connections.
10) Attach the battery holder to the transistor. combination the negative stop of the battery holder to the emitter of the transistor. The negative stop will exist marked with a "-" and if there is a Cable it will exist colored black.
11) Attach the switch to the battery holder. combination a stop of the switch to the definite stop of the battery holder. The definite stop will exist marked with a "+" and if there is a Cable it will exist colored red.
12) Attach the switch to the transmitter coil. combination the other stop of the switch to the only loop made at the transmitter coil.
13) Test circuit operation. Insert the battery into the battery holder. grow the switch to at post and encounter receiver coil rally within mount of the transmitter.