Diodes AP3981B, Руководство пользователя, Страница: 4 / 12

Universal AC input, Primary Side Regulation
AP3981B 12V-500mA EV2 Board User Guide
AP3981B EV2 Page 4 of 12 11 - 12 - 2019
Rev1.0 www.diodes.com
Quick Start Guide
1.
The evaluation board is preset at 12V/500mA from & -
2. Ensure that the AC source is switched OFF or disconnected before doing connection.
3. Connect the AC line wires of power supply to
“L and N” on the left side of the board.
4.
Turn on the AC main switch.
5.
Measure Red & Black wires to ensure correct output voltages at 12V respectively.
Build of Material
AP3981B 12V-0.5A BOM 09-12-2019
Item
QTY per
board
REF. DES. Description MFG or Supplier
MFG P/N or Supplier P/N
Digi key #
0
1 1 BD1 ABS10, Rectifier Bridge Diodes
2 2
C1,C2 4.7uF/400V, electrolytic Aishi Electro
3 1 C3 2.2uF/50V, electrolytic
Aishi Electro
4 1 C4 1nF/200V, 1206 Holy Stone
5 1 C6 1nF/100V, 0603 Holy Stone
6 2
C7, C8 470uF/16V, electrolytic Aishi Electro
7 1 CY1 100pF/250Vac, Y1 capacitor
Holy Stone
8 1 D1 MDD-D7, SMA Diodes
9 1 D2 MDD-D7, SMA Diodes
10 1
D3 3100, Schotty diode Diodes
11 1 L1 470uH , inductor
Yageo
12 1 L2 bead Yageo
13 1 F1 10ohm, Fusible Resistor Yageo
14 1
R1 3.6M , 1206, 5% Yageo
15 1
R2 3.6M , 1206, 5% Yageo
16 1
R3 220K ,1206, 5%
Yageo
17 1 R4 150ohm ,1206, 5% Yageo
18 1
R5 1R5 ohm, 1206, 1% Yageo
19 1
R7 6.2K//150K, 0603
，
1% Yageo
20 1
R8 3.3ohm, 0805, 5%
Yageo
21 1 R9 27K, 0805, 5% Yageo
22 1
R10 47R, 0603
，
1% Yageo
23 1
R11 30K, 0805
，
1% Yageo
24 1
U1 AP3981B, SOIC-7
Diodes 1A-650V
25 2 T1 EE16 core, PC40,