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electrical:solar:charge_controller

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electrical:solar:charge_controller [2019/05/11 18:10]
frater_secessus [how to choose]
electrical:solar:charge_controller [2019/07/21 09:23] (current)
frater_secessus [PWM] heat is not dissipated. Switching causes it
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 [note from frater secessus: PWM vs. MPPT debates can get overheated in forums and comments. It's your money and your build so do it the way that meets your needs.] [note from frater secessus: PWM vs. MPPT debates can get overheated in forums and comments. It's your money and your build so do it the way that meets your needs.]
 ==== PWM ==== ==== PWM ====
-[[http://​amzn.to/​2hcZaj2|{{ https://​images-na.ssl-images-amazon.com/​images/​I/​41pwJOriZHL._AC_US160_.jpg}}]]**PWM** (pulse width modulation) controllers charge by connecting panels to battery until a given voltage setpoint is reached. ​ When the desired setpoint is reached the controller ​shuts current on/off to the battery in very fast cycles and in such a duration needed to keep voltage from rising. ​Excess power is given off as heat. This time slicing power delivery is called is pulse width modulation, or PWM.+[[http://​amzn.to/​2hcZaj2|{{ https://​images-na.ssl-images-amazon.com/​images/​I/​41pwJOriZHL._AC_US160_.jpg}}]]**PWM** (pulse width modulation) controllers charge by connecting panels to battery until a given voltage setpoint is reached. ​ When the desired setpoint is reached the controller ​switches ​current on/off to the battery in very fast cycles and in such a duration needed to keep voltage from rising. ​ This time slicing power delivery is called is pulse width modulation, or PWM.  Some heat will be generated by the switching. Counterintuitively,​ the PWM may be cooler the touch when it is running full open because there is no switching going on to limit voltage.
  
 [[http://​www.electronics-tutorials.ws/​blog/​pulse-width-modulation.html|{{ http://​www.electronics-tutorials.ws/​articles/​pwm2.gif }}]] [[http://​www.electronics-tutorials.ws/​blog/​pulse-width-modulation.html|{{ http://​www.electronics-tutorials.ws/​articles/​pwm2.gif }}]]
electrical/solar/charge_controller.txt ยท Last modified: 2019/07/21 09:23 by frater_secessus