Other Parts Discussed in Thread: UCC28019A,
Hi Sirs,
My customer is utilizing the UCC256403+UCC28019A to do the 2 type ACDC converter circuits with the following specifications.
ACDC converter specifications
・AC Input Voltage Range: 110 to 230V
・120W DC Output type 1: 390V, 0.31A
・240W DC Output type 2: 390V, 0.62A
Could you please help to check the schematics?
The C287(150pF/630V) on both schematics, can I use the voltage at 500V capacitor?
If I want to do minimize LLC audible noise at standby mode or even disable it, how can I do it?
120W PFC+LLC schematics: 60Wx2.pdf
VCC_1(p.1) = 16~17V; power_ON (p.1) from MCU; VCC(p.1) = 15~16V; CN5(p.2) = AC110~230V
UCC256403 Design Calculator for 120W: UCC25640x Design Calculator Rev3.0_60Wx2_V1b_Issued.xlsx
UCC28019A Design Calculator for 120W: UCC28019A Design Calculator_SLUC117E.xls_2X60AMP.xls
240W PFC+LLC schematics: 120Wx2.pdf
VCC_LCC(p.1) = 16~17V; power_ON (p.1) from MCU; VCC(p.1) = 15~16V; CN5(p.2) = AC110~230V
UCC256403 Design Calculator for 240W: UCC25640x Design Calculator Rev3.0_120Wx2_V1a_Issued.xlsx
UCC28019A Design Calculator for 240W: UCC28019A Design Calculator_SLUC117E.xls_2X120AMP.xls
