Contents
How do you calculate amp input?
Amps calculation with line to line voltage
- I(A) = P(W) / (√3 × PF × VL-L(V) ) So amps are equal to watts divided by square root of 3 times power factor times volts.
- amps = watts / (√3 × PF × volts) or.
- A = W / (√3 × PF × V) Example.
- I = 330W / (√3 × 0.8 × 110V) = 2.165A. Amps calculation with line to neutral voltage.
Can you convert watts to amps?
You cannot convert watts to amps, since watts are power and amps are coulombs per second (like converting gallons to miles). Since watts are amps multiplied by volts, there is a simple relationship between them.
What’s the input power rating of a power supply?
If a power supply says the input power is 100-240V, ~1.5A, I’m assuming that the “1.5A” draw would be at 100V, not at 240V, right? I.e. would the total max watts be 150W regardless of the input voltage? the output rating on this supply is 19V, 3.42A. At 100 V current would be < 1 A. The 1.5 A is worst case surge current.
How to calculate the current of a power supply?
The power supply is converting power from one voltage to another. The relationship between power, voltage and current is given by the formula P = VI , where P is power in watts (W), V is voltage (V) and I is current (amperes, amps or A).
What kind of power adapter do I need for Electar 10?
This AC/DC power adapter is custom made for Epiphone Electar 10 Guitar Amplifier. Professional quality ac power adapter. Adapter comes with AC Cord. Supports international voltage. 30 Days Money Back Guarantee / 12-month worry free warranty for our product Please contact us with any questions or concerns.
How does the Max draw on a power supply work?
The context of this is trying to determine the maximum draw for something based on the input power specs on its power supply to ensure a circuit doesn’t get overloaded if too much is on it. I want to make sure to get the max draw correct whether this is in the US at 110V or Europe at 220V.