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Universal VFD driver verification board

Overview

## VFD fluorescent display driver verification board

### 1. Preface
> In order to facilitate the verification of various VFD screens, such as segment screens and dot matrix screens. The power condition can be tested by writing a program.

The circuit is divided into the following parts-
Negative high voltage generation circuit, the voltage is adjustable (minimum -1.25V ~ -63.75V)
- Filament AC circuit, the potentiometer can adjust the current. PWM signals require external input-
The AC circuit is divided into two types of drivers, namely-
1. MX612E motor driver-
2. SL27517 gate driver IC-
Segment screen driver PT6315-
Dot matrix screen driver PT6302LQ (with font library)
- Dual-way switch, control the on and
off of two driver ICs- Cable lead-out

### 2. Reference driver code
**PT6302LQ: Github: https://github.com/ccy-studio/ESP32-VFD-V1**

Design Files

28327b8bb4716179d66bb8d980c46631.mp4

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-06-19 19:14:35

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