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--- troubleshooting:electrical [2016/11/02 22:53]
frater_secessus [overvoltage] converter
+++ troubleshooting:electrical [2020/10/11 19:48]
@@ Line 1: / Line 1: @@
-====== troubleshooting electrical issues ======
-Electrical issues can stem from shorts, open circuits, over- and undervoltage.
-===== shorts =====
-===== open circuits =====
-===== overvoltage =====
-Scenarios with are less common than undervoltage but are more likely to cause damage to components.
-In a TV/motorhome an overvoltage in the DC vehicle system is likely associated with the failure of a voltage regulator.
-On the "house DC power" side high voltages are due to the necessarily-higher charging voltage being applied to the house batteries.  Trojan T-105 batteries, for example, are charged at 14.8v, floated at 13.2v, and equalized at 15.5v.((http://www.trojanbattery.com/BatteryMaintenance/Charging.aspx))  These voltages may trip safety circuits in some devices and it is common to disconnect house wiring before equalizing.
-In smaller applications it may be possible to run [[http://amzn.to/2efAaDb|a DC-DC converter]] between the battery and the house wiring.  This would allow the battery to run at charging voltages but provide house power at 12.7v or whatever level you prefer.
-===== undervoltage =====
-Undervoltage can result from low voltage at the source (like a battery is depleted) or through voltage drop through the connections.
-  * [[http://en-us.fluke.com/community/fluke-news-plus/automotive/electrical-automotive-troubleshooting.html|diagnosing voltage drop]]

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