Velleman K8004 DC to Pulse Width Modulator Kit

Order Code:

70-4076

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1 review

Brand: Velleman Copy to clipboard MPN: K8004 Copy to clipboard EAN-13: 5410329080044

Country of Origin: Belgium

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Discontinued

Product Details
Accessories (2)

The Velleman DC to pulse width modulator is ideal for the accurate control of DC motors, lighting levels, small heaters as well as other applications.

Converts a DC voltage into a series of pulses
Directly proportional to the value of the DC voltage at the input
Almost no power is lost in the control circuit
DC to pulse width modulator circuit is protected against overload and short circuit faults
Easy to assemble
Supplied complete step by step assembly instructions
Rated skill level 3 (on a scale from 1 to 5) by Velleman
Intermediate assembly and soldering skills required
Dimensions 85 (L) x 48 (W) x 45 (D) mm
Velleman K8004

Please note: This is a self-assembly kit and requires soldering.

Type	Electronics experiments
Ready Assembled?	No

Questions

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15 March 2012 Question by: Rapid Customer | Product code: 70-4076

Q. can i control more than 1 servo with this unit

A. Hi Bill, thanks for your question. In theory it may be possible to control more than 1 servo if they are connected in parallel and are similar units – but they will but work at the same rate and share the current between them so its effectiveness is divided by the number of servos attached – it would also be easy to overload the circuit. We hope this helps.

11 December 2011 Question by: Rapid Customer | Product code: 70-4076

Q. When I used this to power a HV Spark Coil from RMCybernetics, the power was so low, it only just drove the coil. Is there any chance I can configure this pulse width modulator so I can make the sparks a lot bigger? I have to scrape it along the wire at the moment in order to get a small spark. I can't afford to buy another board.

A. Hi Owen Thanks for your question. The unit will only vary the pulse rate of the input voltage, ie change the time between On and OFF – it will not amplify it. If you need any further help please feel free to contact our technical department tech@rapidelec.co.uk

Reviews

Reviewed by: John Bunt - 16 April 2008

Its a nice little kit, works extremely well, adjustable PWM frequency, cut in and cut out via the small pots mounted on the PCB, and overall control via the main pot. Perhaps 15 minutes tops to assemble, runs nice and cool, basically does exactly what it says on the tin. I've bought two so far and used them from everything from DC motor speed control to dimming etc.