Are all DC 12V adapters the same?
Each AC/DC power adapter is specifically designed to accept a certain AC input (usually the standard output from a 120 V AC outlet in your home) and convert it to a particular DC output. Likewise, each electronic device is specifically designed to accept a certain DC input.
Are 9 volt adapters interchangeable?
If you have a 12V adapter, you might wonder whether you can use it to power your 9V guitar pedals. In most cases, you cannot use a 12V adapter to power a 9V guitar pedal. Using a 12V adapter on a pedal designed to only handle 9V can completely destroy it.
How do I know what size AC adapter I need?
If you go into a shop you can compare and test the connector size, or if you are technically minded you can measure the size of the port and pin yourself. If you are measuring you need the diameter of the center pin for the (ID) and the inner diameter of the port (OD).
Can I use 12V adapter for 15V?
Distinguished. Assuming the polarity is correct, plugging in a 12V input to a device requiring 15V won’t do any damage, however if you undervolt an amplifier, you may get clipping or other distortion.
Can I use 9v adapter for 12V?
Plugging in an adapter with a lower voltage would not generally harm the unit. But if the polarity is reversed then it probably would cause damage and that may be what has happened. It may just have blown a fuse.
Can you use a 12V adapter for a 15V device?
Is it OK to use higher amp adapter?
Can I use an AC adapter with higher amps? As long as the voltage matches that expected by the connected device, then yes, you can use an AC adapter capable of providing higher amps.
How do I know what power adapter to use?
The right AC adapter for your device is one with matching electrical ratings. The device’s input voltage and current must match the adapter’s output voltage and current. Check the device’s product label or user manual to see its rated voltage and current.
How do I reduce 12v to 15v?
How do you reduce 15v to 12V with a resistor? To reduce voltage in half, we simply form a voltage divider circuit between 2 resistors of equal value (for example, 2 10KΩ) resistors.
Can I use 14V adapter for 12v?
That depends on the design tolerances of the screen, but in general it is a Bad Idea. In simple terms, using a 14V adapter will result in higher current through the components, which will shorten their life span or fry them. Most ’12v’ supplies really measure in around 13.6 or so.