Considerations When Designing with Isolation and Isolated Driver DevicesConsiderations When Designing with
Isolation and Isolated Driver Devices
Kevin Huang
Tom Gao
What is Isolation?
Galvanic isolation
No current flow from one circuit to another
Signal information passes from one circuit to another
2
Why Do Systems Need Isolation?
High Voltage
HV Path
Non-Isolated System
A high-voltage breakdown path exists through the control circuitry
3
Isolation Prevents Electrocution
High Voltage
ISOLATOR
Very high impedance
between grounds!
High voltage path is blocked because of high impedance between g……
