Thyristors and triacs are extremely universally applicable electronic switches. However, due to its special conductivity properties, it cannot be tested without special measuring equipment. Our small test circuit allows these components to be checked quickly. It operates on 12 V AC and is switched by two light-emitting diode triac/thyristor, which displays half-waves of AC voltage.…
These coilguns with levitation control circuits are great! Now… How can you use them for magnetic levitation? This is slightly off-topic from coilguns, but magnetic levitation has many common design principles and is a little easier to build! If you hold two permanent magnets close together, you see that one of them will jump strongly…
Fm transmitter circuit 741 op-amp integrated based on a simple, stable FM transmitter circuit 9-volt battery is working with the adapter, can be used but 9v battery to a cleaner source .. author 30cm tall telescopic antenna used instead of electronics store located in the radio antenna used L1 coil of a pen on the…
This remote control was made for use in the assembly of the remote travel lift. It can be used on almost anything, as the output of the receiver is not decoded via 4 relays. The core of all remote control circuits for the remote control MC145026 (transmitter) and MC145027 (receiver). Information transfer prevented the SAW433-TX…
Friends, I wanted to share with you the metal detector circuit based on ICL8038 and LM386, which I made for a brother at my workplace. ICL8038 : waveform generator is a monolithic integrated circuit capable of generating high precision sine, square, triangle, sawtooth and pulse waveforms with minimal external components. Frequency (or repetition rate) can…
Found on notebooks with serial port can output this circuit on the circuit board Protel PCB FT232A and MAX3245 have a schema file .. USBPCB3.PCB and usb1.sch schema files prepared by PROTEL99-SA The USB to RS232 Dongle Require extra Serial Ports on your new Laptop or PC? Would you like to add USB to your…
USB Port Audio Out USB Audio DAC project using the computer’s USB port can receive audio output source PCM2902 and used LP2951CM Eagle has PCM2902 Scheme and PCB files. Circuit includes DAC, ADC, SPDIF output, input and HID part with 3 buttons for MUTE, VOL+ and VOL-. I used only DAC part. Other parts are…
Power supply is indispensable for voltmeter circuit ICL7107 most commonly used in the market for this job (LCD-LED display, A / D converters) has integrated with-5v and +5 +5 volt single source we have two circuits Our first half is working with the +5 volt supply only source of PCBs to be a bit bigger…
The switch circuit works with touch and sound. It can also be used as a simple alarm circuit. The capacitive microphone can be placed on a window, door or an area inside the house, the relay works with impact or sound. The device connected to the relay becomes active (siren, lamp, motor, etc.) When the…
MAX465, MAXIM. In order to produce the first component video switch, once considered MAX465 Unfortunately, in the electronic market is not found, MAXIM made on the sample application. EL4332,MAX465,. After more than three weeks, were a surprise. During this period, however, I have chosen the EL4332 component video switch as the core, but has received…