Electronics lesson: electronic parts, electronic components, electronic projects, circuit diagram and more
This is a very simple and low cost circuit of dual audio amplifier based on IC KA2211 from Samsung. With single chip, this circuit will deliver up to 5.8W on each output channel.
KA2211 is a dual audio power amplifier for consumer application. It is designed for high power, low dissipation dan low noise. Is also contains various of protectors and suitable for car audio power amplifier with high performance.
Read more about this KA2211 amplifier circuit
About a year ago I promised my nephew that I would build a remote control boat for him. I thought I would have learnt radio controls when I did my Diploma in EEET but I was wrong. He keeps asking me about it and I really want to do it but, I have no knowledge on building radio controlled electronic circuits.
This power inverter uses only 9 electronic components. This inverter circuit will turn 10 to 16VDC into 115V / 60Hz square wave AC power. It was able to operate AC equipment up to 25W.
The first section of the 555 timer is wires as an astable oscillator with R2 and C1 setting the frequency. The output is available at pin 5. The second section is wired as a phase inverter. That output is available at pin 9. Resistor R3 and R4 keep output transistor Q1 and Q2 from loading down the oscillator.
Read more about 25W Inverter circuit
I’m teaching myself how to create electronic circuits and electronics in general. Basically, I want to be able to intelligently fiddle with small circuit boards for some halloween anamotronic figures that have blown circuits. Spent a lot of money on these things and want to be able to fix them.
This is a high quality audio class AB amplifier in hi-fi applications. It has very low noise and distortion, wide bandwidth and good output current capability, enabling it to supply high power into both 4Ω and 8Ω loads. It has both short circuit and thermal protection, so is quite robust.
Component part list:
R1_____________ 150R R2, R3, R5_____ 10K R4_____________ 680R R6_____________ 22K IC1____________ TDA 7294 Heatsink |
C1____________ 1u5F or 1u C2____________ 2n7F C3, C6________ 22uF 63V C4, C5________ 10uF 63V C7, C9________ 2200uF 50V C8, C10_______ 100nF |
