? 00介绍
在 传感器的反向电容 使用 测量了几个光电二极管和变容二极管的结电容与反向电压之间的关系。以下是一些常见的带PN测量结半导体元件的结电容。
? 01测量结果
1. SB3H100
(1) 特性
Diode Schottky 100V 3A 2-Pin DO-201AD T/R Key Features
■ Guardring for overvoltage protection ■ Low power losses and high efficiency ■ Low forward voltage drop ■ Low leakage current ■ High forward surge capabilitmy ■ High frequency operation ■ Solder dip 275 °C max. 10 s, per JESD 22-B106 ■ Maximum repetitive peak reverse voltage: 90V
(2) 测量数据
v=[0.00,0.12,0.24,0.37,0.49,0.61,0.73,0.86,0.98,1.10,1.22,1.35,1.47,1.59,1.71,1.84,1.96,2.08,2.20,2.33,2.45,2.57,2.69,2.82,2.94,3.06,3.18,3.31,3.43,3.55,3.67,3.80,3.92,4.04,4.16,4.29,4.41,4.53,4.65,4.78,4.90,5.02,5.14,5.27,5.39,5.51,5.63,5.76,5.88,6.00]
c=[338.82,309.79,286.87,268.58,264.81,240.86,230.11,226.28,216.22,205.72,199.71,193.66,188.50,186.41,179.48,175.60,172.91,168.51,165.28,164.95,160.14,157.35,155.78,152.13,149.94,147.88,146.43,143.98,142.19,140.45,138.83,137.26,136.52,134.29,132.99,131.61,130.32,129.05,127.87,126.69,125.57,124.51,123.70,122.40,121.42,121.45,119.77,118.64,117.76,116.89]
▲ 结反向电压与结电容
▲ 电容容量使用对数标度绘制曲线
2.普通整流二极管
v=[0.00,0.12,0.24,0.37,0.49,0.61,0.73,0.86,0.98,1.10,1.22,1.35,1.47,1.59,1.71,1.84,1.96,2.08,2.20,2.33,2.45,2.57,2.69,2.82,2.94,3.06,3.18,3.31,3.43,3.55,3.67,3.80,3.92,4.04,4.16,4.29,4.41,4.53,4.65,4.78,4.90,5.02,5.14,5.27,5.39,5.51,5.63,5.76,5.88,6.00]
c=[30.14,29.08,28.64,27.74,27.29,27.00,26.90,26.49,26.31,26.27,25.87,25.77,25.72,25.57,25.51,25.36,25.19,25.13,25.10,24.97,24.94,24.90,24.76,24.72,24.62,24.60,24.49,24.56,24.46,24.39,24.36,24.32,24.25,24.19,24.25,24.15,24.13,24.08,24.08,24.02,24.00,23.98,23.96,23.91,23.92,23.88,23.85,23.86,23.81,23.78]
▲ 反向电压与结电容
➤ ※ 结论
上述测量结果随着之后的补充会逐步增多的。
#!/usr/local/bin/python
# -*- coding: gbk -*-
#============================================================
# TEST1.PY -- by Dr. ZhuoQing 2020-10-10
#
# Note:
#============================================================
from headm import *
from tsmodule.tshardware import *
from tsmodule.tsvisa import *
dp1308open(110)
dp1308p6v(0)
time.sleep(1)
setv = linspace(0, 6, 50)
cdim = []
for v in setv:
dp1308p6v(v)
time.sleep(.5)
while True:
c = int(zbcmdwait(b'lc100-a', 1, .5)) / 100.0
if c >= 10: break
time.sleep(.5)
cdim.append(c)
printff(v, c)
tspsave('data', v=setv, c=cdim)
#------------------------------------------------------------
plt.plot(setv, cdim)
plt.xlabel("Voltage(V)")
plt.ylabel("Capacity(pF)")
plt.grid(True)
plt.tight_layout()
plt.show()
#------------------------------------------------------------
# END OF FILE : TEST1.PY
#============================================================
- 测量几个光电传感器反向电容
- LC100-A全功能型电感电容表,电感表，电容表，LC meter串口数据