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Sound-Controlled Relay – Electronic Circuit Diagram
https://freecircuitdiagram.com/4454-sound-controlled-relay/
Here is the schematic diagram of the circuit: After the signal from microphone is amplified, a rectifier-doubler circuit built with D1 and D2 convert the AC signal to DC. After rectified, the AC ripple is filtered by C4 capacitor to …
Electronic – audio controlled relay circuit – iTecTec
https://itectec.com/electrical/electronic-audio-controlled-relay-circuit/
Electronic – audio controlled relay circuit. audio relay transistors. I need a circuit that fires a relay when it detects audio pulses from one channel of an mp3 player. I'm going to record audio pulses in sync with the music to control a motor for mouth movement.
transistors - audio controlled relay circuit - Electrical ...
https://electronics.stackexchange.com/questions/4742/audio-controlled-relay-circuit
audio controlled relay circuit. Ask Question Asked 11 years, 3 months ago. Active 10 years, 8 months ago. Viewed 4k times 3 1 \$\begingroup\$ I need a circuit that fires a relay when it detects audio pulses from one channel of an mp3 player. I'm going to record audio pulses in sync with the music to control a motor for mouth movement.
Audio Amplifier Output Relay Delay Circuit Diagram
https://www.learningelectronics.net/circuits/audio-amplifier-output-relay-delay.html
The purpose of this circuit is to control the relay which turns on the speaker output relay in the audio amplifier. The idea of the circuit is wait around 5 seconds ofter the power up until the speakers are switched to the amplifier output to avoid annoying "thump" sound from the speakers. Another feature of this circuit is that is disconnects the speaker immediately when the power …
Audio Volume Relay Attenuator with IR Control
http://circuit-zone.com/?electronic_project=92
The circuit provides both audio volume and input channel selection. A stepwise volume control is implemented with a set of tiny relays and RN60D / RN55D Dale resistors. In a high-end audio system, a noticeable sound improvement over potentiometers is obtained, also compared to 'audio grade' potentiometers.
Audio Volume Relay Attenuator with IR Control
http://www.vaneijndhoven.net/jos/switchr/design.html
The front PCB handles the IR signal decoding and 7-segment display control, the relay PCB handles the audio. The kit provides all other components to be mounted on the PCBs for your own soldering. The fully mounted 'relais' PCB. The tiny G6K-2P relays behave fine for audio. The diodes, voltage regulator IC, and elco provide a 5V supply voltage.
Relay-Controlled Volume - The Ultimate Solution for …
https://benchmarkmedia.com/blogs/application_notes/benchmarks-256-step-relay-controlled-attenuator
Relay-Controlled Volume - The Ultimate Solution for Analog Audio. Benchmark has introduced the new HPA4 headphone/line amplifier with four 256-step relay-controlled attenuators and four 16-step relay-controlled boost amplifiers. Together these form two fully-independent, fully-balanced stereo volume controls. One volume control is dedicated to ...
Relay Circuits and Ladder Diagrams | Relay Control Systems ...
https://control.com/textbook/relay-control-systems/relay-circuits/
Electromechanical relays may be connected together to perform logic and control functions, acting as logic elements much like digital gates (AND, OR, etc.). A very common form of schematic diagram showing the interconnection of relays to perform these functions is called a ladder diagram. In a “ladder” diagram, the two poles of the power source are drawn as vertical …
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