Hayagriv
Newbie level 2
Dear Edaboard,
I am a NEW hire in our company and I am trying to understand the Analog PFC in the design.
In a PFC, the most critical components are MOSFET, DIODE and the E-cap which can degrade over a period of time.
E-cap Degradation, implies either ESR value increases or Capacitance decreases. Can anyone let me know how this affects both the loop (Voltage and Current loop) compensation of the circuit.
Also, MOSFET and Diode degradation, mainly because of thermal heating and it may result in higher loss in the components as far as I know. Can anyone please let me know if there are any parameters in these components change due to degradation..?
If so, how the degradation of MOSFET and Diode affects the loop compensation.?
Please help me to understand the topic in detail.
Thanks in advance for your help.
Regards,
Hayagrivan
I am a NEW hire in our company and I am trying to understand the Analog PFC in the design.
In a PFC, the most critical components are MOSFET, DIODE and the E-cap which can degrade over a period of time.
E-cap Degradation, implies either ESR value increases or Capacitance decreases. Can anyone let me know how this affects both the loop (Voltage and Current loop) compensation of the circuit.
Also, MOSFET and Diode degradation, mainly because of thermal heating and it may result in higher loss in the components as far as I know. Can anyone please let me know if there are any parameters in these components change due to degradation..?
If so, how the degradation of MOSFET and Diode affects the loop compensation.?
Please help me to understand the topic in detail.
Thanks in advance for your help.
Regards,
Hayagrivan