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electrical:12v:alternator_charging_hvd

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electrical:12v:alternator_charging_hvd [2020/01/21 21:33]
frater_secessus [Disconnecting alternator charging at a voltage setpoint]
electrical:12v:alternator_charging_hvd [2022/07/31 00:33] (current)
frater_secessus [solid state isolators]
Line 32: Line 32:
 ===== solid state isolators ===== ===== solid state isolators =====
  
-Some solid state isolators have a trigger or exciter input;  drive with HVD as with solenoids and relays.  +It is unlikely you will need an HVD with a diode-based isolators because: 
 + 
 +   - the isolator can't backfeed voltage back to the starter battery, and 
 +   - voltage drops up to 1v in the diodes when passing alternator --> isolator --> house bank 
 + 
 +But it is theoretically possible alternator voltage is so high that even with the drop you might want an HVD.  Some solid state isolators have a trigger or exciter input;  control with HVD as with solenoids and relays.  
  
 Three lug isolators without exciter input might not be usable with HVD. Three lug isolators without exciter input might not be usable with HVD.
electrical/12v/alternator_charging_hvd.1579660384.txt.gz · Last modified: 2020/10/11 19:48 (external edit)