1. Suite Name: Clap switch kit.
2. Kit Model: PSK-1.
3. Operating Voltage: 5V.
4. PCB Size: 28 * 49mm.
Working Principle:

Q1
and Q2 composed of two audio amplifier circuit, the audio signal is
accepted by the MK1 C1 is coupled to the base of Q1 pole, amplified and
fed
directly
from the collector to the base of Q2 to a negative square wave at the
collector of Q2, with to trigger the bistable circuit. R1, C1 circuit
frequency
response
is limited to about 3kHz to high sensitivity range. The power is turned
on, the state of the bistable circuit Q4 off, Q3 saturated, D3 does
not shine.
When MK1 received control signal, and a negative square wave output
after two enlarged, negative spikes through D1 add to the base of Q3,
the circuit
rapidly flip, D3 is lit after differential processing. When MK1 again
connected to the control signal, the circuit and flipped, D3 is off.
Circuit
board
reserved for the terminal J1 access outside the control equipment and
other devices through the J1 connector relay voice. (Then relays
required
at both ends of the relay coil anti and a diode)
Package Including:
1Pcs Clap Acoustic Control Switch Suite Circuit Electronic PCB DIY Kits.