Five-way flashing light string circuit (1)

It is a five-way flashing light controller made of M]DOOI and five flashing light integrated circuits produced by Shenzhen Tianlang Semiconductor Co., Ltd. M1500P is made of [1M()ST Zhi. DIP 14 standard packaging,
soft seal packaging can also be customized according to customer requirements. It uses a power supply with a standard voltage of 3V, I,1 -] and an output terminal that can
directly drive the light-emitting diode to flash. There are two flashing modes to choose from: random and continuous.
    In the circle, 220Y AC power
is stepped down by C , Vn rectification and vS
voltage stabilization output a self-current voltage of about 3V for
the 'VI1500P. Pins ⑨~⑩,
that is, terminals 1,1~L5, are respectively connected to
pin ① of the SSRI-SSR5 Yinzhi relay
(i.e., the negative terminal of the built-in light-emitting tube )
R, is the current-following
resistance of the built-in light-emitting tube, so when it is powered on, the five solid
-state relays will turn on and
off one after another, and the light strings El to F5 will
start shine. (), l of the integrated block The /OFF terminal, that is, the ⑦ pin is directly connected to the ground , so the chip starts to work after the circuit
is powered on . s is the mode selection switch. When Sm is closed, the SEQ terminal is connected to the ground , and the flashing is a continuous horse racing pattern; when S
is opened, the SFQ terminal is suspended. When one hundred groups of light strings flash randomly. R. It is an external oscillation resistor of the integrated block
. Changing its resistance can fine-tune the flashing frequency.
    C. It is required to use CBB-400V type polypropylene capacitors; SSR1 ~ SSR5 use TAC081 type IC type
solid state relay, its maximum load current is A. See A for other component parameters, no special requirements.