Solar Battery Charger

Category:

Power Electronics

Author:

Shane Oberloier

Post date:

December 4, 2017 - 2:55am

UPL Compliant:

Yes

Tested:

Rating:

No votes yet

Tags:

Solar, battery charger, sustainability, car battery

Design Description:

This is a circuit design to fulfill a design request DC to DC converter and 12V Car Battery Maintainer

This circuit is capable of generating a constant 13V from an input from a solar panel of 5V-17V (or more). There is also an extra 5V output for logic circuits (IE some sort of embedded control system). Design components and parameters were found using the Boost Converter - Component Calculator.

Circuit Parameters

Parameter	Value
Minimum Input	5V
Nominal Input	17V
Output Voltage	13V
Voltage Ripple	0.4Vpp
Max Current Draw	4A
Secondary Voltage output	5V

Design Videos

Disclaimer

This board has not been tested - nor is it guaranteed to work as specified. The designer holds no responsibility for any damages that may arise from using, testing, or fabricating this circuit.

Bill of Material


Component	Description	Part	References	Value	Footprint	Quantity Per PCB	Datasheet	UPL #	Part #
1	SMD 0.47uF ceramic capacitor 50V [UPL 2.010]	0.47uF_c	C1 C3	0.47uF_c	C_1206_HandSoldering	2	https://www.digikey.com/short/qcd83f	2.010	CC1206KKX7R9BB474
2	SMD 1000pF ceramic capacitor 50V [UPL 2.006]	1000pF_c	C4 C5 C6 C7	1000pF_c	C_1206_HandSoldering	4	https://www.digikey.com/short/qcd8tb	2.006	CC1206KRX7R9BB102
3	THT 1000uF electrolytic capacitor 50V [UPL 2.018]	1000uF_e	C2	1000uF_e	C_Radial_D12.5_L25_P5	1	https://www.digikey.com/short/qcd8m9	2.018	UVZ1H102MHD1TO
4	Schottky Diode, 45V, 15A [UPL 4.030]	D_Schot_HC	D1	D_Schot_HC	Resistor_Horizontal_RM30mm	1	https://www.digikey.com/short/q31cmt	4.030	15SQ045TR
5	Blade Fuse Holder [UPL 11.003]	FUSE_Blade	F1	FUSE_Blade	Fuse_Holder	1	https://www.digikey.com/short/q7wbwz	11.003	3522-2
6	Terminal Block, 2 Pos [UPL 10.003]	Term_2	J1 J2 J3	Term_2	TerminalBlock_Pheonix_MKDS1.5-2pol	3	https://www.digikey.com/short/q7wbhd	10.003	1935161
7	SMD 27uH Inductor, 5.36A [UPL 3.017]	27uH	L1	27uH	Resistor_Horizontal_RM30mm	1	https://www.digikey.com/short/q3vw8p	3.010	3.017
8	Bipolar Transistor NPN, 50V 5A TIP120 [UPL 4.023]	TIP120	Q1	TIP120	TO-220_Neutral123_Vertical_LargePads	1	https://www.digikey.com/short/q75wn4	4.023	TIP120
9	SMD 10K ohm resistor 1/4W [UPL 1.040]	10K	R1	10K	R_1206_HandSoldering	1	https://www.digikey.com/short/qcz4tt	1.040	RC1206FR-0710KL
10	SMD 200 ohm resistor 1/4W [UPL 1.019]	200	R3	200	R_1206_HandSoldering	1	https://www.digikey.com/short/qczzv9	1.019	RC1206FR-07200RL
11	SMD 47K ohm resistor 1/4W [UPL 1.048]	47K	R2	47K	R_1206_HandSoldering	1	https://www.digikey.com/short/qcz4q5	1.048	RC1206FR-0747KL
12	THT 10K ohm trimmer potentiometer 25 turn [UPL 1.070]	10k_t	RV1	10k_t	Potentiometer_Bourns_3296W_3-8Zoll_Inline_ScrewUp	1	https://www.digikey.com/short/qt5j3q	1.070	1-1623849-0
13	Voltage Regulator 5V, 1.5A L7805CV [UPL 5.002]	5V_Reg	U1	5V_Reg	TO-220_Neutral123_Vertical_LargePads	1	https://www.digikey.com/short/q75n7c	5.002	L7805CV
14	Buck Boost Controller, 1.5A max [UPL 5.009]	MC34063ABN	U2	MC34063ABN	DIP-8_W7.62mm_LongPads	1	https://www.digikey.com/short/q75n3w	5.009	MC34063ABN
Component Groups:	14
Component Count:	20
Fitted Components:	20
Number of PCBs:	1
Total components:	20
Schematic Version:
Schematic Date:
BoM Date:	Sun 03 Dec 2017 09:10:02 PM EST
Schematic Source:	/home/shane/Documents/OCI_Designs/Solar_Battery_Charger/Solar_Battery_Charger.sch
KiCad Version:	Eeschema 4.0.2+dfsg1-stable

Export Table Data

Design Files

Design Files:

Solar_Battery_Charger.zip

Search form

Solar Battery Charger

Solar Battery Charger