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Summary of Contents for Velleman K7300
- Page 1 Total solder points: 205 Difficulty level: beginner 1 advanced UNIVERSAL BATTERY CHARGER / DISCHARGER K7300 ILLUSTRATED ASSEMBLY MANUAL H7300IP-1...
- Page 2 Features & Specifications Specifications: Many battery chargers are available on the market, but few of them are universal chargers that can be used for all battery types. Using our kit, batteries of different voltages and capacities can be charged both quickly and normally. In order to ensure that the battery is fully discharged prior to charging, an automatic discharger is also fitted.
- Page 3 Assembly hints 1. Assembly (Skipping this can lead to troubles ! ) Ok, so we have your attention. These hints will help you to make this project successful. Read them carefully. 1.1 Make sure you have the right tools: • A good quality soldering iron (25-40W) with a small tip.
- Page 4 Assembly hints 1.3 Soldering Hints : 1- Mount the component against the PCB surface and carefully solder the leads 2- Make sure the solder joints are cone-shaped and shiny 3- Trim excess leads as close as possible to the solder joint REMOVE THEM FROM THE TAPE ONE AT A TIME ! AXIAL COMPONENTS ARE TAPED IN THE COR- RECT MOUNTING SEQUENCE !
- Page 5 Construction 1. Jumper wires Resistors R19 : 22K (2 - 2 - 3 - B) 1/4W R20 : 33K (3 - 3 - 3 - B) R... R21 : 47K (4 - 7 - 3 - B) J (2x) R22 : 82K (8 - 2 - 3 - B) R23 : 150K (1 - 5 - 4 - B) R24 : 470K (4 - 7 - 4 - B)
- Page 6 Construction 6. Trim potentiometer 9. Capacitors. 12. Pin headers RV1 : 220K : 2p C... : 3p : 8p : 8p C1 : 47nF (473) : 12p C2 : 47nF (473) 7. IC sockets. Watch the : 12p position of the notch ! 10.
- Page 7 Construction 15. Electrolytic Capacitors. 18. Push button 20. LEDs Watch the polarity! Watch the polarity ! SW1 : start LD1 : Red : 1µF LD2 : Green C... : 10µF CATHODE LD... Mounting into a housing : Mount these LEDs through the 16.
- Page 8 Construction 21. Power transistor 23. Adjusting the built-in clock. 10mm M3 BOLT Mount a shunt over the CAL connection. METAL SIDE LOCK WASHER Mount a shunt over the 52 min selection (quick charge setting). : BD676 22. IC. Watch the position of Mount a shunt over the 1.2V selection (charge a 1.2V battery).
- Page 9 Connection 24. CONNECTION Connect a battery to the ACCU + and - connection. One of the battery holders from our range can be used such as: • Type BH9V for 1 9V cell. • Type BH322B for 2 AA cells (penlight). •...
- Page 10 Normal charge (14h) 25. USE WITH NORMAL CHARGE (14h) • Mount a shunt over the 14h position. • Select the battery voltage to be connected using a shunt on the 1.2V to 9.6V connection. • Select the charge current with a shunt between 15mA and 750mA. The charge current of a battery can be determined by dividing the battery capacity by 10 (then select the closest to the charge current).
- Page 11 Fast charge (52 mins) 26. FAST CHARGE (52 mins) • Mount a shunt over the 52 min position. • Select the battery voltage to be connected using a shunt on the 1.2V to 9.6V connection. • Select the charge current with a shunt between 15mA and 750mA. The charge current of a battery can be determined by dividing the battery capacity by 10 (then select the closest to the charge current).
- Page 12 Fast charge (52 mins) NOTE: Only use the quick charge facility in the event of an emergency, as this type of charging can reduce the battery lifetime. Never mix batteries of different capacities. Never select two voltages or current settings simultaneously.
- Page 13 27. PCB layout.
- Page 14 Diagram 28. Diagram...
- Page 16 VELLEMAN Components NV Legen Heirweg 33 9890 Gavere Belgium Europe www.velleman.be www.velleman-kit.com Modifications and typographical errors reserved © Velleman Components nv. H7300IP - 2005 - ED1 5 4 1 0 3 2 9 2 8 9 8 8 1...
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