EL cold light driver board design

I. Overview
EL cold light drive board is an EL cold light and cold light panel drive control board. After the power is turned on, pressing the button can control 1~5 cold light or cold light panels to flash or turn off in different ways. It is widely used in advertising decorations and automobiles. Decoration, shoe uppers, hats, clothes, luminous vests and other products.



Two functional characteristics
The working voltage is 3.7V~5V, and it supports lithium batteries.

Proprietary inverter boost circuit, reaching 100~300V high voltage output (Vp-p)

The flashing mode and frequency can be adjusted according to user needs.

According to user needs, microphone pickup and music rhythm control can be added.

Proprietary cold-light film plug-in detection, automatically cut off the lithium battery power supply, long standby.

Ultra-thin design, control box thickness <10mm.

The TypeC plug is charged, and the red light is always on to indicate that it is full.

Standby time

   Constant light mode: ≥30 minutes.

   Flashing mode: ≥1 hour.

Flashing mode

    Chang Liang

    1s alternately on and off

Marquee

    Always off.

Drive area 100mm²

Three design plan

It uses Huada's low-power MCUHC32L110 as the main control and supports 5V working voltage, which is especially suitable for such working scenarios.

Three sample display

Industry Classification: Smart Home

Development platform: HDSC Huada

Delivery form: PCBA

Performance parameters: working voltage 3.7V~5V

Application scenarios: advertising decoration, car decoration, shoe uppers, hats, clothes, luminous vests