Hardware procurement
Procurement of the hardware parts
The list of the parts to make a charger is shown on this page. Use this list as a reference for your development.
Active components (ICs, transistors...)
- Microcontroller: PIC16F876A-I/SP (Microchip) - 3.61€ from (Microchip Direct)
- Current pick up: ACS750SCA-050 (Allegro Micro) - 6.55€ (Farnell 1457175)
- Discharge mosfet (x2) : IRFP260N (International Rectifier) - 5.76€ (Generic - Ebay)
- Charge mosfet (x2) : IRF9540N (International Rectifier) - 1.4€ (Generic - Ebay)
- RS232 interface : MAX232CPE (or equivalent) (MAXIM) - 0.83€ (Generic - Ebay)
- DC/DC diode : MBR1645 (or equivalent) (International Rectifier) - 0.5€ (Generic - Ebay)
- Quad opamp single supply : LM324N (or equivalent) (National Semiconductor) - 0.24€ (Generic - Ebay)
- Mosfet P driver : BC337 (or equivalent) (generic) - 0.06€ (Generic - Ebay)
- Fan cooler driver : TIP122 (or equivalent) (generic) - 0.36€ (Generic - Ebay)
- 5V regulator : LM7805 (or equivalent) (generic) - 0.24€ (Generic - Ebay)
- Protection diode : 1N4148 (or equivalent) (generic) - 0.02€ (Generic - Ebay)
- Electromagnetic 2KHz Buzzer : CEM1201(50) (or equivalent) (generic) - 0.6€ (Generic - Ebay)
- Display: RC162051yfhlyb (or equivalent) (APEX) - 5€ (Generic - Ebay)
- Fan cooler: KDE1207PTV3 (or equivalent) (SUNON) - 2.5€ (Generic - Ebay)
Total of this section: 30€
Passive components (Resistors, capacitors, inductors...)
- Electr. Capacitor (x1) : 2200uF / 35V (generic) - 1.44€ (Generic - Ebay)
- Electr. Capacitor (x3) : 470uF / 16V (generic) - 0.36€ (Generic - Ebay)
- Ceramic Capacitor (x20) : 100nF..10pF (generic) - 0.46€ (Generic - Ebay)
- 0.125W 1% resistor (x20) : 10Ohm...100KOhm (generic) - 0.25€ (Generic - Ebay)
- Power resistor : 47Ohm,5W (generic) - 0.36€ (Generic - Ebay)
- Multiturn trimmer (x1) : 2K - 0.72€ (Generic - Ebay)
- Crystal : 20.000MHz - 0.24€ (Generic - Ebay)
Total of this section: 6€
Mechanical components (Enclosure, heatsink...)
- Enclosure : 1598ESGYPBK (Hammond) 10.51€ (Digikey 1598ESGYPBK-ND)
- Heatsink : 780803U04724 12cm length 0.65C/W (Aavid Thermalloy) 6.96€ (RS 2508574004
)
- Keys (x4): MCDTS2-4R (Multicomp) 3.28€ (Farnell 9471650)
- Blue Key cover (x2 - UP/DN): KTSC-22B (Multicomp) 0.16€ (Farnell 9561528)
- Green Key cover (OK): KTSC-22G (Multicomp) 0.08€ (Farnell 9561501)
- Red Key cover (reset): KTSC-22R (Multicomp) 0.08€ (Farnell 9561536)
- Red 4mm socket (x3): (generic) 3€ (generic)
- Black 4mm socket (x3): (generic) 3€ (generic)
- RS232 connector : DEM9S (generic) 0.36€ (generic)
- Sockets for IC (x3): DIL28,DIL16,DIL14 (generic) 0.24€ (generic)
- Connection between display and main PCB (x2): IDC-20 male connector 0,48€ (generic)
- Connection between display and main PCB (x2) plus flat cable: IDC-20 female connector 0,48€ (generic)
- PCB main 120x109mm (132sq.cm): Single side with solder and silkscreen 1.58€ (www.pcb-proto.com)
- PCB display 143x76mm (108sq.cm): Single side with solder and silkscreen 1.3€ (www.pcb-proto.com)
- PCB front panel 150x79mm (120sq.cm): Single side with solder and silkscreen 1.44€ (www.pcb-proto.com)
- PCB rear panel 150x79mm (120sq.cm): Single side with solder and silkscreen 1.44€ (www.pcb-proto.com)
Total of this section: 34€
Other components (Workmanship, postal charges...)
Total of this section: 0€
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