What should a power supply voltage be?

With that in mind, voltage is the essential factor and again should be the same or within a tolerance of 1 volt. A full guide on the key details of any power supply, charger or adapter including voltage, amperage and wattage.

What is the current rating of a power supply?

The current rating of a supply is what it can deliver, not what it will always force thru the load somehow. In that sense, unlike with voltage, the current rating of a power supply must be at least what the device wants but there is no harm in it being higher. A 9 volt 5 amp supply is a superset of a 9 volt 2 amp supply, for example.

How many volts does an unregulated power supply stay at?

ut will stay at 6 volts whatever current flows, up to 5 amps.With an unregula ed supply, the voltage tends t drop as the current increases. See Internal resistance below. Regulated power supplies have tance up until the maximum output current.Interna

What is the minimum load requirement for a power supply?

Some power supplies, generally older switchers, have a minimum load requirement. This is usually 10% of full rated output current. For example, a 12 volt 2 amp supply with a minimum load requirement of 10% isn't guaranteed to work right unless you load it with at least 200 mA.

What is a wattage limit on a portable generator?

All portable generators have an advertised wattage limit (or power capacity) included in their description or Spec Sheet. This number represents the maximum total electricity, measured in watts, that a portable generator can provide with any combination of two or more of its available receptacles (or outlets).

Can a 12V power supply be used with a 16V supply?

BUT trying to operate a 12V rated device from a 16V supply (25% high) is risky and may cause damage to device or supply. Current: the same or higher current. eg consider a 12V, 2A device and a 12V 20A power supply. 12V is the "electrical pressure". 20A is the electrical current that the supply CAN provide at that pressure.