Clap Switch Suite Electronic Production DIY KitsSold By ICStation, Ships from China
Free Express Shipping (DHL/FedEx) can be offered for order reached $200. If you need it, please leave a message while ordering. Thanks for your support!
Description Package name: clap switch kit Kit Model: PSK-1 Operating voltage: 5V PCB size: 28 * 49mm Principle of Circuits The circuit is maily composed by audio frequency and bistable tigger cir...Read More…
The circuit is maily composed by audio frequency and bistable tigger circuit.
Q1 and Q2 form the secondary amplifier circuit. Audio signal which accepted by MK1 enters to Q1 base through the coupling of C1, and enters to Q2 base through collector directly after amplified. And it will obtain a negative square-wave which used to trigger the bistable circuit from Q2's collector.
R1 and C1 restrict the frequency response of circuit to 3kHz which is in a high sensitivity range. Q4 is cutoff, while Q3 is saturated and D3 is off when the power is on. When MK1 obtains the control signal, a negative square-wave has been outputted after amplified and negative pulse has been added to Q3 base through D1 after differentiation processing. The power flips rapidly and D3 is lighted at this time. The power flips again when MK1 obtains the control signal at the second time. And the D3 is off. A cable terminal J1 can be added on PCB which used for connecting external control equipment. It can realize the sound control function on other equipment by connecting J1 and relay. （A diode should be connected reversely at the ends of relay when connecting the relay)
This circuit is with 5V power supply. LED is off when the machine current 3 mA, while the LED is on when the current is 6 mA.
|Shipping Rate||First item||Additional items|
United States Postal Service: delivery time (7-10 working days)
We recognize our top users by making them a Tindarian. Tindarians have access to secret & unreleased features.
We look for the most active & best members of the Tindie community, and invite them to join. There isn't a selection process or form to fill out. The only way to become a Tindarian is by being a nice & active member of the Tindie community!