PAH-28/12.5-D48NB-C

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DC-DC converters are essential components of many electrical systems. This article discusses the application field and working principle of PAH-28/12.5-D48NB-C, a type of DC-DC Converter.

PAH-28/12.5-D48NB-C is a 48Vdc to 12.5Vdc DC-DC converter. It is designed with an input voltage range of 40V to 72V and an output voltage accuracy of ±0.5%. It is rated for a continuous output current of 28A and a peak output current of 40A. Furthermore, it has an ultra wide 4:1 input voltage range, an efficient switching frequency of 50KHz, and a high efficiency up to 92%. Being a highly reliable and cost-effective product, it is an ideal choice for many applications, such as forklifts, industrial vehicles, electric vehicles, electric boats, EV chargers, etc.

In terms of its working principle, PAH-28/12.5-D48NB-C adopts a synchronous buck topology. When the output voltage is lower than its nominal voltage, it employs a synchronous rectifier to source current to the output. The rectifier controls the current flow according to its duty cycle and output voltage. When the output voltage is higher than its nominal voltage, it switches back to its diode rectifier to sink current from the output, thus sustaining a stable output voltage. The driving transistor keeps it in this mode until the output voltage drops again. PAH-28/12.5-D48NB-C also features a constant frequency pulse width modulation (PWM) technique, which enables it to regulate the output voltage precisely and accurately. It also integrates a wide range of protection mechanisms, such as over current protection, over voltage protection, over temperature protection, short circuit protection, and over load protection.

In conclusion, PAH-28/12.5-D48NB-C, which falls within the DC-DC converter family, is a highly reliable and cost-effective DC-DC converter solution. It is typically applied to applications such as forklifts, industrial vehicles, electric vehicles, electric boats, EV chargers, etc. Its working principle is based on a synchronous buck topology with a constant frequency PWM technique, and it includes a wide range of safety and protection mechanisms to ensure a stable and reliable output voltage.

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