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Post Merged (destination) from electronics.stackexchange.com/questions/72041/…
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edit approved Feb 13, 2013 at 16:57
Jobin T Philip
edit approved Feb 13, 2013 at 16:57
Jobin T Philip
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I'm not reallya real expert in electronics but I'm going to start a new project that has completely captured me. I

I need to drive a 12V pump with my Arduino Uno. The pump is the "Dp0102" (12V, 0.7A). To power onup the pump I thoughtwish to use an external switching power supply (12V - 88W) connected to a 12V relay and an optocoupler (maybe 4n35). I

I was inspired by a project found overon the web (Link), regarding driving a 12V fan: is. I would like to know whether it possible to adaptmodify and and use itthis circuit to drive a pump? Note that the fan's power consumption is about 1.2-1.7W instead ofbut for the pump it is 8.4W for the pump's power consumption. Should I use a transistor (instead of the optocoupler + 12V relay)? Can you help me choosing the right one?

I'm not really expert in electronics but I'm going to start a new project that has completely captured me. I need to drive a 12V pump with my Arduino Uno. The pump is the "Dp0102" (12V, 0.7A). To power on the pump I thought to use an external switching power supply (12V - 88W) connected to a 12V relay and an optocoupler (maybe 4n35). I was inspired by a project found over the web (Link), regarding driving a 12V fan: is it possible to adapt and use it to drive a pump? Note that the fan's power consumption is about 1.2-1.7W instead of 8.4W for the pump's power consumption. Should I use a transistor (instead of the optocoupler + 12V relay)? Can you help me choosing the right one?

I'm not a real expert in electronics but I'm going to start a new project that has completely captured me.

I need to drive a 12V pump with my Arduino Uno. The pump is "Dp0102" (12V, 0.7A). To power up the pump I wish to use an external switching power supply (12V - 88W) connected to a 12V relay and an optocoupler (maybe 4n35).

I was inspired by a project found on the web (Link), regarding driving a 12V fan. I would like to know whether it possible to modify and and use this circuit to drive a pump? Note that the fan's power consumption is about 1.2-1.7W but for the pump it is 8.4W. Should I use a transistor (instead of the optocoupler + 12V relay)? Can you help me choosing the right one?

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8bit_Biker
8bit_Biker
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Arduino Uno with 12V pump: transistor or optocoupler+12V relay?

I'm not really expert in electronics but I'm going to start a new project that has completely captured me. I need to drive a 12V pump with my Arduino Uno. The pump is the "Dp0102" (12V, 0.7A). To power on the pump I thought to use an external switching power supply (12V - 88W) connected to a 12V relay and an optocoupler (maybe 4n35). I was inspired by a project found over the web (Link), regarding driving a 12V fan: is it possible to adapt and use it to drive a pump? Note that the fan's power consumption is about 1.2-1.7W instead of 8.4W for the pump's power consumption. Should I use a transistor (instead of the optocoupler + 12V relay)? Can you help me choosing the right one?