Of course, a voltmeter and an ammeter (multimeter or other devices) are indispensable because we can evaluate the efficiency and performance of our power supply with the data from these measurements.
What are the criteria for choosing a power supply?
When selecting a power supply, we should pay attention to the quality of the components used, which affects the device’s failure rate, the stability of the supply voltage, and energy efficiency – voltage processing does not run optimally. Part of the power is lost in the form of heat.
How to choose a replacement power supply?
To choose a suitable power supply, we need to pay attention to its parameters and connector type. The parameters we are interested in are: 1) DC voltage in volts (V) – it must match the value indicated on the laptop (theoretically, the tolerance is about 1 V, but it is not always present).
What is the purpose of a power supply?
A computer power supply (hereafter referred to as a “PSU”) is the actual heart of a computer – it powers all of the computer’s components, such as the processor, motherboard, memory, graphics card, and hard drives and disk drives.
How do I connect a 12V LED light?
For 12V LED bulbs, we can apply different solutions to connect them in parallel, in series, or series parallel.
How to supply 12V LEDs with power?
We connect the high voltage of 230V to the input and connect the LED strip to the output. Remember that there is already a low voltage at the output, in this case, 12V. The red wire is positive, and the black wire is negative.
What kind of power supply for 12V halogen lamps?
Transformer ETZ50 with an output power of 50 W is designed to work with halogen light sources supplied with 12 V AC.
What power supply for LEDs in the bathroom?
It is a perfect solution for the bathroom or kitchen. These power supplies have smaller dimensions than those of the POS series. So if you have little space to hide them, you should use a model of LPV series. Photo: LPV waterproof LED power supplies with different wattages. You can buy the LPV power supply in the store.
How to measure the voltage of the power supply?
Plug the power supply into an electrical outlet. Set the multimeter scale to measure the DC voltage – symbol: The multimeter should read 0.00.