SH-841 ASIC holiday lights

Posted on Dec 11, 2010

Figure 2-78 is SH-841 as the core device made holiday lights controller. By SCR VSl ~ VS4 to drive light string H1 ~ H4 flashes. Manifold operating voltage by AC by VD1-VD4 bri

SH-841 ASIC holiday lights
Click here to download the full size of the above Circuit.

dge rectifier, Rl buck, VD5 filter regulator and C2 obtained. Manifold 2 feet of the music signal output by the amplifying transistor VT to drive the piezoelectric ceramic sheet B made sound. Adjustment potentiometer RP can control the sound volume.

Leave Comment

characters left:

New Circuits



Popular Circuits

iButton DS1990A Lock
Low pass filter for Subwoofers
The Time Delay Circuit
The Colpitts Oscillator
Pulsed-light sensor
PC Output Interface
20W bus circuit radio and megaphone
Thermostat with three-wire serial interface smart temperature sensor DS1620 configuration control circuit