Comments on: A Power Inverter with Arduino Pulse Source http://www.kerrywong.com/2010/03/12/a-power-inverter-with-arduino-pulse-source/ Sat, 18 May 2013 10:55:15 +0000 hourly 1 http://wordpress.org/?v=3.5.1 By: Smitha http://www.kerrywong.com/2010/03/12/a-power-inverter-with-arduino-pulse-source/comment-page-1/#comment-199100 Smitha Mon, 04 Feb 2013 23:56:38 +0000 http://www.kerrywong.com/?p=1702#comment-199100 IF i have four switches to be used in the inverter. Say I’m making a 3 level inverter, how do I go about it as I’m very new to Micrcontrollers.

]]> By: kwong http://www.kerrywong.com/2010/03/12/a-power-inverter-with-arduino-pulse-source/comment-page-1/#comment-192443 kwong Sat, 17 Mar 2012 12:49:53 +0000 http://www.kerrywong.com/?p=1702#comment-192443 You can’t just change one MOSFET to P-channel without any modifications. But you could refer to http://www.eleccircuit.com/dc-to-ac-inverter-by-ic-555-and-tip41-tip42/ (I haven’t tried myself, but it should work) and replace the 555 squarewave generator with an 50% Arduino PWM output. This circuit doesn’t need a center-tapped transformer.

]]> By: bino oetomo http://www.kerrywong.com/2010/03/12/a-power-inverter-with-arduino-pulse-source/comment-page-1/#comment-192437 bino oetomo Sat, 17 Mar 2012 03:24:17 +0000 http://www.kerrywong.com/?p=1702#comment-192437 Dear Kerry

What if I change one of the Mosfet with a P-channel one, and just control it using single PWM pin in 50% ?

Can it work ??

sincerey
-bino-

]]> By: kwong http://www.kerrywong.com/2010/03/12/a-power-inverter-with-arduino-pulse-source/comment-page-1/#comment-129605 kwong Thu, 09 Jun 2011 01:01:57 +0000 http://www.kerrywong.com/?p=1702#comment-129605 The total delay should be around 8ms. Since the instructions take some time to execute, the total time delay is actually just above 8ms in my experiment and the resulted waveform is very close to 60Hz.

For more accurate timing, you can use the interrupt method mentioned here.

]]> By: Einherjar http://www.kerrywong.com/2010/03/12/a-power-inverter-with-arduino-pulse-source/comment-page-1/#comment-129546 Einherjar Wed, 08 Jun 2011 19:44:47 +0000 http://www.kerrywong.com/?p=1702#comment-129546 Shouldn’t the delay on lines 13 & 16 be 8ms (62.5Hz) not 7ms (71.4Hz)?

]]> By: Jack Visage http://www.kerrywong.com/2010/03/12/a-power-inverter-with-arduino-pulse-source/comment-page-1/#comment-94182 Jack Visage Wed, 26 Jan 2011 02:51:56 +0000 http://www.kerrywong.com/?p=1702#comment-94182 The gates of the two mosfets are connected to two digital pins of the arduino board.
Then the benefit of using an Arduino to control the waveform generation is that the frequency can be precisely controlled. So that the output waveform accuracy is a concern, more advance PWM signal with a 50% duty cycle should be used to drive the MOSFETS. I got it, thanks for the info by the way.

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