Three-way karaoke light renderer circuit

This example introduces an audio amplifier produced by Wuxi Aixinke Microelectronics Company!
It is a card-based lighting rendering tool made with dedicated integration . It has two outputs. The flow speed of the light will change according to the singer's singing
and the sound of the music. It can enhance the singing atmosphere and beautify the indoor environment. It is very suitable for family karaoke
singing. Its circuit is shown in Figure 279.
    In the figure, H is a piezoelectric ceramic piece. After it picks up the environmental sound wave signal, it outputs the corresponding electrical signal.
After two stages of amplification, VT1 and VT2, it is output by the WI2 collector. RP1, C: Send the sound trembling j soil The input terminal IN of the internal audio rectifier amplifier of the control integrated circuit
HI.:/033 is the ⑤ pin. After the signal is amplified and rectified again by the internal rectifier amplifier
, it is converted into a DC control }U level to control the oscillation of the HI,3033 internal voltage controlled oscillator V(,.
This makes the open-drain output terminal (1, Q2, Q3, that is, pins ①, ② and ⑦ appear high in sequence, and
the cycle rate changes with the strength of the frequency signal. When pin ① m appears high, this high level forces
the thyristor VT3 to turn on through R Therefore, the fJ string El emits light. Manager l. When the ② pin is high level, the E2 light string lights
up; when the ⑦ pin is high level, the E2 light string emits light. And the lighting speed is cycled in turn, following the environment. The intensity of the music
changes. Just arrange the 1-l, H2 and E3 light strings appropriately in the room to form a flowing water
dynamic effect.
    The tuner RP1 changes the audio voltage input to the fifth pin of H【,3033 size, so you can adjust the sound control sensitivity
and the water flow rate of the lantern . Move the RPI sliding end upward, the higher the sound control sensitivity, that is, the water flow
rate is more susceptible to changes in ambient sound intensity, and the water flow rate will be faster. Fast, and vice versa. RP2+ R, and G are
the external oscillation resistor and power supply of the internal V[1() of HL3033. Adjust the cylinder RP2 to change the oscillation frequency of vc(),
so the flow speed of the lantern can also be adjusted. Usually , when there is no obvious sound in the environment, use the RP2 to make the lanterns have a
suitable water flow speed (generally it should be reduced to a slower speed), and then turn on the indoor audio equipment. When the music
starts play, when you sing loudly, the water flow will start. The speed will speed up and can change with the strength of your singing.
    In the picture, s is the positive and negative lu control switch S. When it is turned on, it is the positive flow, that is, the light sequence is Fl+EZ
, E3 to E1...; When S is closed, it is the reverse flow of water, that is, when the light is on, it is El and E2'...
If El, E2 and E3 are replaced by red, green, and blue primary color incandescent bulbs, and their light is projected Synthesized in the same
piece of opalescent glass, it is possible to create dynamically changing and fascinating colored lights.