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electrical:solar:charge_controller [2020/05/25 11:53]
frater_secessus [how to choose] 		electrical:solar:charge_controller [2020/05/25 11:55]
frater_secessus [how to choose]
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   * using panels with nominal voltages higher than 12v ((more prescisely, when panel nominal voltage exceeds house bank nominal voltage))   * using panels with nominal voltages higher than 12v ((more prescisely, when panel nominal voltage exceeds house bank nominal voltage))
   * space available for panels is limited, as on a sailboat or small vehicle   * space available for panels is limited, as on a sailboat or small vehicle
 +  * daytime loads are hampered by [[electrical:solar:pwm_tweaking|PWM Vbatt hobbling]]
   * [[#overpaneling|overpaneling]]   * [[#overpaneling|overpaneling]]
   * making [[electrical:converter#diy_converters|DIY converters]]   * making [[electrical:converter#diy_converters|DIY converters]]
 We say "effectively required" because one //can// use 24v panels with PWM and 12v banks -- it just doesn't work very well.  The 24v panels will be run at 12v voltages, yielding about half the power you would get with MPPT.  We say "effectively required" because one //can// use 24v panels with PWM and 12v banks -- it just doesn't work very well.  The 24v panels will be run at 12v voltages, yielding about half the power you would get with MPPT. 
-**Shunt controllers are useful for [[electrical:solar:shallow_cycling|shallow-cycling configurations]]** or for battery chemistries that are not damaged by [[electrical:depth_of_discharge|partial state of charge (PSoC)]].  Their relative inexpense makes them useful for even very small systems and test configurations. 
-Their simple ON and OFF setpoints may also make them useful for charging [[electrical:12v:deep_cycle_battery#lithium_chemistries|lithium]] chemistries. 
  
 Further reading:   Further reading:  
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   * if temperatures are very low (rising Vmp means increasing output which PWM could not capture)   * if temperatures are very low (rising Vmp means increasing output which PWM could not capture)
   * the increase in cost is not an undue burden   * the increase in cost is not an undue burden
 +
 +**Shunt controllers are useful for [[electrical:solar:shallow_cycling|shallow-cycling configurations]]** or for battery chemistries that are not damaged by [[electrical:depth_of_discharge|partial state of charge (PSoC)]].  Their relative inexpense makes them useful for even very small systems and test configurations.
 +Their simple ON and OFF setpoints may also make them useful for charging [[electrical:12v:deep_cycle_battery#lithium_chemistries|lithium]] chemistries.
  
 ===== multiple charge controllers  ===== ===== multiple charge controllers  =====
electrical/solar/charge_controller.txt ยท Last modified: 2024/04/16 20:28 by frater_secessus

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