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12V UPS(12 to 15V booster charger for Lead acid battery V5)

3 years ago 775
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Description

12 to 15 volt step up converter,12V lead acid battery charger, output voltage keeper. All circuits can be baypass by solder trace. Keeper circuit has precharge of capacitor and shocky dyode for discarge. Relay can be turned on by Vin or Vout step up(V14). Step up can be enabled or disabled, charge circuit can be isolated from power, output and feedback. LED1 poweron LED2 Voutok (max15v)-charging LED3 Battery discharging

Documents

1215-Sup-Chg-Mnt-v5

PCB_1215-Sup-Chg-Mnt-v5

BOM

ID Name Designator Footprint Quantity
1 BAT- BATGND HDR-1X1/2.54 1
2 V+in V+IN HDR-1X1/2.54 1
3 GND GND HDR-1X1/2.54 1
4 SRD-12VDC-SL-C RELAY1 RELAY-SL-SRD 1
5 BAT+ BAT+ HDR-1X1/2.54 1
6 OUT+ OUT12V HDR-1X1/2.54 1
7 OUT GND OUTGND HDR-1X1/2.54 1
8 SBR2U30P1-7 D2 POWERDI 123 1
9 SK34 D3,D4,D5,D1 SMB(DO-214AA) 4
10 620 R5 2512 1
11 4700uF C4,C5 CAP-D18.0XF7.5 2
12 1.2K R7,R6,R2,R8 1206 4
13 D-G080508G1 LED1,LED3,LED2 LED-0805 3
14 Vin VIN HDR-1X1/2.54 1
15 Relay RELAY HDR-1X1/2.54 1
16 RFS01JR100A520NH U3,U2 R-10X4 2
17 12 R3,R4 2030R 2
18 2SA1797G-B-AB3-R Q1 SOT-89(SOT-89-3) 1
19 200K RA 0603 1
20 47K RC 0603 1
21 1uF C3 0805 1
22 0.12 RS 1812 1
23 120Ω RT 0603 1
24 18K RB 0603 1
25 Vcharg VCHARG HDR-1X1/2.54 1
26 VBpow VBP HDR-1X1/2.54 1
27 VCpow VCP HDR-1X1/2.54 1
28 VF VF HDR-1X1/2.54 1
29 VFO VFO HDR-1X1/2.54 1
30 L2charge L2C HDR-1X1/2.54 1
31 2KΩ RA1 0603 1
32 470KΩ RD 0805 1
33 L2Normal L2N HDR-1X1/2.54 1
34 XL6009 U1 TO-263-5 1
35 20K R1 RES-ADJ_3296W 1
36 100uF C1,C2 CAP-D8.0XH10.5 2
37 47uH L1 SMD-L-13.8X12.6X6.0 1
38 Vo V14 HDR-1X1/2.54 1
39 Ven ENV+ HDR-1X1/2.54 1
40 EN EN HDR-1X1/2.54 1
41 ENgnd ENGND HDR-1X1/2.54 1
42 VoPow VOP HDR-1X1/2.54 1
43 L2G L2GND HDR-1X1/2.54 1
44 UC3906DWTRG4 U4 DW16_N 1

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