DCP3001

Working range: input AC220V +-10%, output 0...30V adjustable, current 0...0.8A adjustable.
It adopts an isolated flyback switching power supply structure with high efficiency. The primary and secondary sides are isolated
and small in size, about the same It is based on a mobile hard disk and is easy to carry. It
has a built-in user-friendly HMI, LCD display, and encoder adjustment. It
has additional and secondary development functions, such as battery charging, VI adjustable curve output, 4..20mA current source, industrial field signal source and other

main transformers . Parameter calculation:

Pri winding param Symbol Value Unit
Max. output power Poutmax 38.5 W
Max. input power Pinmax 51.33333333 W
Max. primary winding current Ipkmax 1.013451262 A Norm
. primary winding current Ipknorm 0.675074412 A
Recommened sense res.
inductance Lpmin 1281.531021 uH


Select core type Symbol Value Unit
Area production of core Ap 0.277050095 cm4
Select core type EE25.4
Core Ap Ap 0.3172819 cm4
Core Ae Ae 40.3
Core AW AW 78.73
Core AL AL ​​2000
Core Le Le 48.7

"☞Note:
Please select core type from drop down list. Core Ap should be green light.
Core data are queried from worksheet ""core_bobbin""."

Calculate air gap Symbol Value Unit
Calculated air gap Lg 1.03 mm
Recommened air gap Lg 1.10 mm
Core Lc Lc 47.60
Reluctance core Rc 408661.96
Reluctance gap Rg 21720898.31
Core AL with air gap AL 45.19 nH/N2

Symbol Value Rounded Unit
Skin depth ε 0.27 mm
Winding parameters Calculated pri. Winding turns Np 168.40 169.00 Turn
Power of sec. winding 1 Po1 38.50 W
Power of sec. winding 2 Po2 0.00 W
Power of sec. winding 3 Po3 0.00 W
Power of sec. winding 4 Po4 0.00 W
Power of sec. winding 5 Po5 0.00 W
Number of turns 1 Ns1 32.76 33 Turn
Number of turns 2 Ns2 0.64 1 Turn
Number of turns 3 Ns3 0.64 1 Turn
Number of turns 4 Ns4 0.64 1 Turn
Number of turns 5 Ns5 0.64 1 Turn
Peak current of sec. winding 1 Ispk1 5.19 A
Peak current of sec. winding 2 Ispk2 0.00 A
Peak current of sec. winding 3 Ispk3 0.00 A
Peak current of sec. winding 4 Ispk4 0.00 A
Peak current of sec. winding 5 Ispk5 0.00 A
rms current of pri. winding 1 Iprms 0.39 A
rms current of sec. winding 1 Isrms1 2.22 A
rms current of sec. winding 2 Isrms2 0.00 A
rms current of sec. winding 3 Isrms3 0.00 A
rms current of sec. winding 4 Isrms4 0.00 A
rms current of sec. winding 5 Isrms5 0.00 A

"☞Note: If Wire diameter large than 2x skin depth, consider more wires in parallel
"

Wire diameter pri. Winding Dpri 0.32 mm
Wire diameter 1 D1 0.75 mm
Wire diameter 2 D2 0.00 mm
Wire diameter 3 D3 0.00 mm
Wire diameter 4 D4 0.00 mm
Wire diameter 5 D5 0.00 mm

Auxiliary transformer calculation table is in the attachment
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