The primary side feedback single-stage

Transcription

1 The primary side feedback single-stage active PFC constant current LED driver D W Panel light Application Note May, 3 rd. 2016

2 Feature Single-stage active high power factor correction, high PF value, and Low THD Primary side feedback constant current control, without secondary feedback circuit ±5% LED output current precision Excellent Line Voltage and Load Regulation rate Inductor current operate in critical conduction mode Ultra-Low (10uA) startup current FB feedback resistor is higher, and the power consumption is lower LED open and short circuit protection CS resistor open circuit protection Cycle-by-cycle current limit VCC over-voltage and under-voltage protection Auto fault recovery Available in SOP-8 package

3 Internal Structure Diagram

4 Pin Configuration Pin Definition Pin No. Name Description 1 COMP Loop Compensation Node D FB Feedback signal feedback pin. 3 CS Current sense Pin. Connect a resistor to GND. 4,7 NC Float 5 DRV Connect this pin to the gate of external power MOSFET. 6 VCC Power Supply Pin. 8 GND Chip signal and power MOSFET ground.

5 IC Application Diagram

6 Design Reference (60-100V-300mA) Input Voltage: AC100V-300V Output Voltage: DC V Output Current: 300mA <±3% PF: >0.9 THD: <20% Efficiency:>89% ce cy: (220Vac input, full loading) Size : 93mm*32mm*25mm Design Note D8063 Input Voltage Max.Current Max.Power AC100V-300V 300mA 30W

7 Module Diagram (60-100V-300mA)

8 PCB Gerber File Top View Bottom View

9 POWER POWER MOS MOS Microelectronics Electronics LTD. LTD. BOM (60-100V/300mA) NO. Symbol Description QTY Unit Place 1 Rectifier Bridge KBP206 1 pcs BD1 2 CBB CBB 224/450V pin:10mm 1 pcs C1 3 EL Capacitor 4.7uF/450V-8*12, 2000hr 1 pcs C2 4 EL Capacitor 47uF/160V 10*13, 5000hr 2 pcs C6, C7 5 EL Capacitor 10uF/50V 5*11, 5000hr 1 pcs C9 6 X Capacitor 0.1uF/275Vac Pin:10mm 2 pcs CX1 CX2 7 Y Capacitor 222M/250Vac Pin:10mm 1 pcs CY3 8 SMD Rectifier Diode M7 SMA 1 pcs D1 9 SMD Fast Recovery Rectifier Diode RS1M-SMA 2 pcs D2 D4 10 SMD Rectifier Diode 1N4148-SOD pcs D3 11 Plug-in Ultrafast Recovery Diode SF58 DO pcs D6, D7 12 Ceramic Fuse 3.15A/250Vac 3.6*10 1 pcs F1 13 IC D8063 SOP-8 () 1 pcs IC1 14 Common Mode Green Loop Inductor Inductance is 5mH, 10*6*5 1 pcs LF1 15 Common Mode Inductor UU9.8 60mH 1 pcs LF2 16 Cooling Fin 23*13*20.5mm, thickness: 1.0mm 1 pcs HS2 17 MOSFET 7N80 TO-220F 1 pcs Q1 18 Transformer PQ2020 vertical 6+8 L:610uH 1 pcs T1 19 SMD Resistor SMD_RES_1MΩ±5%/ pcs R1, R2, R3, R4 20 SMD Resistor SMD_RES_75k±1% pcs R9 21 SMD Resistor SMD_RES_5.6k±1% pcs R10 22 SMD Resistor SMD_RES_680K±5% pcs R11, R12,R7,R8 23 SMD Resistor SMD_RES_0R±5% pcs R14 R15 24 SMD Resistor SMD_RES_47R±5% pcs R13 25 SMD Resistor SMD_RES_51R±5% pcs R16, R17 26 SMD Resistor SMD_RES_10K±5% pcs R18 27 SMD Resistor SMD_RES_1.5R±1% pcs R20, R21 28 SMD Resistor SMD_RES_2R±1% pcs R23, R24, R22 29 SMD Resistor SMD_RES_200K±5% pcs R25, R26, R27 30 SMD Resistor SMD_RES_20R±5% pcs R28 31 SMD Resistor SMD_RES_100K±5% pcs R30, R31 32 SMD Resistor SMD_RES_62R±5% pcs R33, R34 R29 33 MOV 10D511 2 pcs ZNR1, ZNR2 34 SMD capacitor SMD_CAP_1nF/1KV X7R pcs C3 35 SMD capacitor 1uF/50V X7R pcs C4 36 SMD capacitor SMD_CAP_100pF/1KV NPO pcs C5 37 SMD capacitor SMD_CAP_0.1uF/50V X7R pcs C10 38 SMD capacitor SMD_CAP_20pF/1KV NPO pcs C11 39 Single layer PCB 92.7*32.11mm*1.2mm 1 pcs

10 Transformer Bobbin:PQ2020 Vertical 6+8P Magnetic core : PC40 The pin of the transformer

11 Transformer Winding Method Layer No. Pin Wire diameter Turn Inductance N1 Pin 2 Pin 1 φ*1 wrap parallel 53T Insulated Tape Tape 2T N2 Pin 14 Pin 7 φ*1 wrap close 66T Transformer source side PIN1-PIN3 inductance is Insulated Tape Tape 2T 700uH (1KHz tested ). N3 Pin 3 Pin 2 φ*1 wrap parallel 27T Precision is ±5%. Leakage inductance Insulated Tape Tape 3T need less then 10uH. N4 Pin 4 Pin 6 φ*2 wrap close 13T Bobbin is vertical type PQ2020 (6+8P) Magnetic Insulated Tape Tape 2T core is PC40. N5 Pin 6 --NC φ0.15*1 wrap close In full Insulated Tape Tape 2T Cut off Pin 2,5, after winding. Note: Winding in clockwise, the winding wire can t across, pay attention for the direction and the beginning Pin.

12 Test Report D W 100V 300mA No. V IN (VAC) V OUT (V) I OUT (ma) PF P OUT (W) P IN (W) Eff.(%) Average Eff.(%) Range THD # % V # % V # % V

13 Test Report D W 60V 300mA No. V IN (VAC) V OUT (V) I OUT (ma) PF P OUT (W) P IN (W) Eff.(%) Average Eff.(%) Range THD # % V # % V # % V

14 Surge Test (2.5KV PASS)

15 Q & A Thank You!