电动牙刷自动化测试设备
来源： zydate 日期： 2023-06-13 10:24
一次测试二十个产品，每个产品有一个按钮要测试，还有四个灯的颜色，分别供电，测静态电流和工作电流，以及控制烧录测试，电池保护功能测试
用Labview写测试程序，用NI VISION测试LED灯颜色。
| X7 | VCC | L1 | |
| X8,X10 | GND | L2 | |
| TP5 | KEY | L3 | |
| TP7 | VPP | L4 | |
| TP8 | DAT | ||
| TP9 | CLK | ||
| X1,X7 | Bat+ | ||
| X2,X9 | Bat- | ||
| X3, X4 | Coil | ||
| X5 |
      Mot+ |
connect 22R (2W) resistor between X5/X6 (to simulate load) | |
| X6 | Mot- | ||
| 阶段 | 序号 | 功能 | 判定OK结果 |
| 程序烧录 | 1 | 程序烧录 | |
| 按键切换和档位切换测试 | 2 | 电容放电 | |
| 3 |
TP5 = 0; 电源 4.0V (+/-50mV) to VCC+ and Vbat- |
||
| 4 | 等待 500 ms | ||
| 5 | 设置 TP5 = 1 | ||
| 6 | 读取 TP8 | TP8==1 | |
| 7 | 设置 TP5 = 0 | ||
| 8 | 目测检查 | L1,L2,L3,L4关 | |
| 9 | 设置 TP5 = 1 | ||
| 10 | 目测检查 | L2开 | |
| 11 | 设置 TP5 = 0 | ||
| 12 | 目测检查 | L3开 | |
| 13 | 设置 TP5 = 1 | ||
| 14 | 目测检查 | L4开 | |
| 15 | 设置 TP5 = 0 | ||
| 16 | 等待100ms | ||
| 17 | 设置 TP5 = 1 | ||
| H桥MOS管测试 | 18 | 设置 TP5 = 0 | |
| 19 | 测试 X6 | X6<50mV | |
| 20 | 测试 X5 | X5>(VCC-50mV) | |
| 21 | 设置 TP5 = 1 | ||
| 22 | 测试 X5 | X5<50mV | |
| 23 | 测试 X6 | X6>(VCC-50mV) | |
| 低电压报警测试 | 24 | 设置 TP5 = 0 | |
| 25 | 读取 TP8 | TP8==1 | |
| 26 | 设置 TP5 = 1 | ||
| 27 | 向VCC和GND施加2.9V（+/-50mV）电压 | ||
| 28 | 等待200ms | ||
| 29 | 目测检查 | L1开 | |
| 充电功能测试 | 30 | 向VCC和GND施加4.0V（+/-50mV）电压 | |
| 31 | 等待200ms | ||
| 32 |
断开X3和X4,施加12V（+/-100mV）至 X4和GND（X4:+12V；GND:12V GND） |
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| 33 | 测量充电电流 | 电流>80mA | |
| 34 | 测量VCC | 3.9V < VCC < 5.2V | |
| 35 | 设置 TP5 = 0 | ||
| 36 | 测量充电电流 | 电流<20mA | |
| 37 | 设置 TP5 = 1 | ||
| 静态电流测试 | 38 | 断开所有电源 | |
| 39 | 电容放电 | ||
| 40 | 向VCC施加4.0V电压 | ||
| 41 | 等待2000毫秒或直到电流稳定为止 | ||
| 42 | 测量VCC电流 | 电流<10uA |
