Test Circuit to Extract the Pole of an Optocoupler Model

Description

This simple circuit shows how to locate the pole of the optocoupler model, calculating the pole added by the capacitor Cpole= 1/(6.28*Fp*Rpullup), where Fp is the bandwidth of the collector voltage. In this SPICE simulation Cpole is 2.2nF and Fp is 3500hz.

• Project Type: Free
• Complexity: Simple
• Components number: <10
• SPICE software: Micro-cap
• Software version: 10+
• Full software version nedeed : No
• Screenshots simulation images: