Solar panel bypass diode

Discussion in 'General Electronics Chat' started by mrel, Sep 15, 2014.

  1. mrel

    Thread Starter Active Member

    Jan 20, 2009
    97
    1
    Hello
    when connect solar panel in parallel they should be a bypass diode put in the circuit.
    So the question is when connect solar panel in series if put bypass diode in the circuit would the solar panel work just as good with bypass diode in circuit or been that this is a series circuit put diode in the circuit would make solar panel produces less volts.
    Mrel
     
  2. BeerBelly

    New Member

    Dec 16, 2013
    29
    5
    If the diode is in series with the panel, then the voltage will drop by the junction of the diode. About 3/4 volt with a silicon diode or 1/3 volt with a Schottky diode.
     
  3. NorthGuy

    Active Member

    Jun 28, 2014
    603
    121
    You only need bypass diodes when panels are connected in series. Bypass diodes are connected in parallel with the panel. If the panel get shaded, they provide a path for current from other panels to bypass the shaded panel.

    You do not need bypass diodes when panels are connected in parallel.

    Bypass diodes are often installed in the panel junction box, so you don't need external ones.
     
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