2 layers
Amplificador
nachocarballeda/gclass_amplifier
Diseño de un amplificador clase G para la materia Circuitos Electronicos 2. FIUBA
92 parts3
2 layers99.1 × 99.1 mm
Switch electronics
dmsherazi/Battery-Management-System1Solar-battery charge regulator
- Size
- 99.1 × 99.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 95
- Nets
- 81
- Pads
- 258
- Tracks, vias
- 548, 3
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 5 Oct 2015
- Updated
- 29 Sep 2015
Overview
Switch electronics is an open-source printed circuit board by dmsherazi, from the dmsherazi/Battery-Management-System repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 99.1 × 99.1 mm with 95 parts on 81 nets, routed with 548 tracks and 3 vias.
It is built around the 74HC04D, 74LS139PC and LM1084IT-3.3/NOPB, with the LM7809CT, SQD45P03-12-GE3-VB and SUD50P04-08-GE3 among its other parts. Its parts include 18 resistors, 15 transistors, 7 capacitors, 7 diodes and 6 ICs. It belongs with the power boards of this library.
Main components
7
74HC04D
SOP-14-40℃~+125℃ 1 1.5V~4.2V 1.9V、3.7V、5.2V 100mV、400mV、400mV 14ns@6V,50pF 2V~6V 2uA 5.2mA 5.2mA 500mV~1.8V 6 74HC SOIC-14 Inverters ROHSNexperiaInverters
74LS139PC
PDIP-1622ns 74LS 8mA Decoder Single Supply PDIP-16 Signal Switches, Multiplexers, DecodersonsemiSignal Switches, Multiplexers, Decoders
LM1084IT-3.3/NOPB
TO-220-40℃~+125℃@(Tj) 0.003%Vout 1 1.3V@(5A) 15V 3.3V 5A 5mA 72dB@(120Hz) Fixed Over Current Protection、Over Temperature Protection Positive TO-220 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsLinear Voltage Regulators (LDO)
LM7809CT
TO-220-30℃~+125℃@(Ta) 1 1.5A 35V 56dB@(120Hz) 58uV 9V Fixed Positive Short Circuit Protection、Thermal shutdown TO-220-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSHGSEMIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
SQD45P03-12-GE3-VB
TO-252TO-252 MOSFETs ROHSVBsemi ElecMOSFETs
SUD50P04-08-GE3
TO-252-55℃~+150℃ 1 P-Channel 159nC 2.5V 2.5W 40V 5.38nF 500pF 50A 570pF 8.1mΩ@10V P-Channel TO-252 MOSFETs ROHSVishay IntertechnologyMOSFETs
MBR1645
TO-220AC-2-65℃~+175℃ 1 Independent 150A 16A 200uA@45V 45V 630mV@16A TO-220AC-2 Schottky Diodes ROHSonsemiSchottky Diodes
README
Kicad-Switch/README.mdBattery Management System Switch
PCB for the MOSFET switch matrix.
Digital circuitry ensures that no two batteries are connected together, which could cause damage if the state of charge differs significantly.
A diode matrix is used to provide power for the electronics. It ensures that power is taken from the loads, or from the batteries if the loads are not connected. This enables the firmware to keep track of the current drawn by the local electronics.
The MOSFETs are driven by simple BJT-resistor drivers. This results in quite slow switching speeds. There may be a need for faster switching e.g. high speed PWM to reduce EMI. In this case the circuit needs to be modified to use better drivers.
There were several errors in the circuit, which have been corrected but not tested. The board is to be replaced with the gEDA version.
In the board, load 1 is the central row of switches and the upper power connector. Load 2 is the lower row of switches and the lower power connector. This is the reverse of that used in the interconnect board and has been changed in the gEDA board.
(c) K. Sarkies 26/04/2014
Parts
95| Qty | Value | Footprint | References |
|---|---|---|---|
| 19 | CONN_1 | SolderWirePad_single_2mmDrill | B1, B2, B3, B11, B12, B13, B14, B21, B22, B23, B24, B31, B32, B33, B34, GND +3 |
| 14 | SolderWirePad_single_1mmDrill | SolderWirePad_single_1mmDrill | X, X, X, X, X, X, X, X, X, X, X, X, X, X |
| 9 | 10K | R4 | R1, R2, R3, R4, R5, R6, R7, R8, R9 |
| 9 | 1K | R4 | R10, R11, R12, R13, R14, R15, R16, R17, R18 |
| 9 | 2N3906 | TO92-CBE | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9 |
| 6 | SQD45P03-12-GE3 | TO252-HS-S | Q10, Q12, Q13, Q15, Q16, Q18 |
| 5 | 0.1uF | C2 | C1, C2, C3, C4, C8 |
| 4 | 1N4701 | D3 | D7, D8, D9, D11 |
| 4 | SolderWirePad_single_2mmDrill | SolderWirePad_single_2mmDrill | X, X, X, X |
| 3 | SUD50P04-08-GE3 | Fred:TO252-HS | Ref**, Ref**, Ref** |
| 2 | 10uF | C1V5 | C9, C10 |
| 2 | 1N5819 | D3 | D12, D13 |
| 2 | 74HC04 | DIP-14__300 | U1, U3 |
| 2 | 74LS139 | DIP-16__300 | U2, U4 |
| 1 | 10K | r_pack8 | RR1 |
| 1 | CONN_12 | he10-14d | P1 |
| 1 | LM1084IT-3.3/NOPB | Transistors_TO-220:TO-220_Neutral123_Vertical | U8 |
| 1 | LM7809CT | TO-220_Neutral123_Vertical | U7 |
| 1 | MBR1645 | Diode_TO-220_Vertical | D10 |
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Questions
How big is the Switch electronics PCB?
It measures 99.1 × 99.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Switch electronics use?
95 parts, built around the 74HC04D, 74LS139PC, LM1084IT-3.3/NOPB and LM7809CT. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Switch electronics KiCad files?
From the dmsherazi/Battery-Management-System repository on GitHub, at the commit this page was made from: the board is Kicad-Switch/switch-electronics.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Switch electronics design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).