QME48T20120-PGB0

DC-DC converters are electronic components that convert a DC input voltage into a DC output voltage at either a higher or lower potential and either a higher or lower current. The QME48T20120-PGB0 is a switching DC-DC converter module featuring high efficiency, high resolution, fast transient response, an alarm function, output over-voltage protection, and over-temperature protection. It is used for applications such as LED lighting modules, motor drive modules, battery charging modules, and voltage regulation.

The working principle of the QME48T20120-PGB0 is based on the principle of pulse width modulation (PWM). This involves taking a fixed input voltage and applying it to the output terminals with a series of rapidly timed pulses. Each pulse is of a width that is proportional to the magnitude of the desired output voltage. The result is a DC output voltage with no ripple, or instability, which is adjustable in a smooth, linear fashion over a wide range of input levels.

The QME48T20120-PGB0 features a maximum output power of 42W, an adjustable output voltage range of 8 to 28V, and an efficiency of up to 95%. It also features an active control protection function that automatically shuts off the output when a current over-load or a short-circuit occurs.

The module is designed with several levels of protection. This includes an over-temperature protection function, an over-voltage protection, and a built-in current limiter to prevent dangerous surges. The module also has an output voltage trim function that allows precise and accurate setting of the output voltage.

In summary, the QME48T20120-PGB0 is an efficient and reliable DC-DC converter module for applications such as LED lighting, motor drive modules, battery charging, and voltage regulation. It features a high efficiency, fast transient response, output over-voltage protection, and over-temperature protection. It also has a built-in active control protection function and a voltage trim function for precise adjustment of the output voltage.