Hello,
I have to construct a SMPS. It should consist out of a Totem Pole PFC (with GaN) and should go from fow Power (approx. 10W) to 1.5kW.
But now I am a bit confused by the operation modes. I understand that there is CCM, CRM, DCR and that they have different advantages.
I found some reference designes for each of the modes but for the Totem Pole PFC with GaN mainly CCM.
But what confuses me is how they stay in the Mode. For the CRM I found that they change the Frequency.
Also are some SMPS designed to go from CCM (at high load) to DCM (at low load). In this case how should one focus on the specifications of the components?
Pls help me - Thanks!
I have to construct a SMPS. It should consist out of a Totem Pole PFC (with GaN) and should go from fow Power (approx. 10W) to 1.5kW.
But now I am a bit confused by the operation modes. I understand that there is CCM, CRM, DCR and that they have different advantages.
I found some reference designes for each of the modes but for the Totem Pole PFC with GaN mainly CCM.
But what confuses me is how they stay in the Mode. For the CRM I found that they change the Frequency.
Also are some SMPS designed to go from CCM (at high load) to DCM (at low load). In this case how should one focus on the specifications of the components?
Pls help me - Thanks!