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This kit is meant as an auxiliary or as a permanent power supply for all common Velleman kits based on a 
stabilized DC voltage between 3 and 30V provided that the consumption does not exceed 3A. 
Of course this power supply unit can be used for other purposes, as long as the maximum specifications are 
taken into account. 
 

Technical data : 

 

 

Short circuit protected 

 

Overload protected 

 

Heatsink included 

 

 

Output voltage: adjustable 3 to 30V stabilized. 

 

Output current: max. 3A 

 

Output ripple voltage: 0.5mV.  

 

Input: 9 to 30V transformer, depending on the desired output  

 

Dimensions (LxWxH): 130x91x50mm 

 

 

Transformer not included 

 

Features  

Содержание K7203

Страница 1: ...30VDC 3A POWER SUPPLY K7203 ILLUSTRATED ASSEMBLY MANUAL H7203IP 1 Total solder points 57 Difficulty level beginner 1 2 3 4 5 advanced A power supply for all our kits based on a stabilised DC voltage o...

Страница 2: ...his power supply unit can be used for other purposes as long as the maximum specifications are taken into account Technical data Short circuit protected Overload protected Heatsink included Output vol...

Страница 3: ...he eyes Needle nose pliers for bending leads or to hold components in place Small blade and Phillips screwdrivers A basic range is fine For some projects a basic multi meter is required or might be ha...

Страница 4: ...nts 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 CORRECT MOUNTING SEQUENCE You will...

Страница 5: ...ockets Watch the position of the notch C1 470pF 471 C2 100nF 104 C3 100nF 104 3 Capacitors C RV1 10K 4 Resistor trimmer RV1 C4 100 F C5 10 000 F 8 Electrolytic Capacitor Watch the polarity C D1 6A2 or...

Страница 6: ...ER TRANSISTOR HEATSINK PCB Fig 1 0 T1 MJ3001 or eq Apply some thermo conducting pasta to the bottom side of the transistor and mount it on the PCB simultaneously with the cooling profile following the...

Страница 7: ...ventilation holes one may make these holes oneself necessary for the release of the heat developed If a metal housing is used it must be earthed for security purposes Make sure the cooling body does n...

Страница 8: ...o secondary windings which should be connected either in parallel or in series The colour code can be found on the packaging For safety reasons the primary winding of the transformer is connected to t...

Страница 9: ...ired fuse 110VAC 3 5V 5K6 9V 30VA 309 160mA Slow 315mA Slow 5 8V 5K6 12V 50VA 5012 250mA Slow 500mA Slow 8 13V 2K2 15V 50VA 5015 250mA Slow 500mA Slow 13 15V 2K2 18V 80VA 8018 400mA Slow 800mA Slow 15...

Страница 10: ...10 13 PCB layout PCB...

Страница 11: ...VOLTAGE ADJUST RV1 10K IC1 REF 5 13 723 6 4 NC NC NC NC 14 9 3 1 8 2 AC C5 10000u D2 6A6 D1 6A6 D4 6A6 D3 6A6 V C2 100n 12 11 MJ3001 T1 D5 6A6 C3 100n R1 8K2 R2 2K2 C1 470p COMP INV R6 0 18 5W CS CL...

Страница 12: ...ions and typographical errors reserved Velleman Components nv H7203IP 2004 ED1 VELLEMAN Components NV Legen Heirweg 33 9890 Gavere Belgium Europe www velleman be www velleman kit com 5 4 1 0 3 2 9 2 8...

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