VCP24US05

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AC DC converters are an essential part of many different applications. VCP24US05 is a closed loop DC to DC converter developed by Voltronic Power Corporation, which is used in an array of applications. This article will discuss the application field and working principle of the VCP24US05.

Application Field

VCP24US05 is widely used in a variety of applications. The most common use is for the power supply of mainframe systems and communications apparatus. Its wide input voltage range from 9V to 32V DC makes it an ideal choice for large-scale industrial park systems as well. For sensitive or critical segment power supply, the branch of the commercial building and data center applications need the high reliable performance, where the VCP24US05 excels.

VCP24US05 has also been adopted into a whole heap of industrial automation fields. The high surge capability and temperature tolerance make it suitable for use in automotive, aerospace, and petrochemical industry projects. Its low power consumption and high efficiency also suit it for array of applications such as the solar electric industry, wind turbines, smart grid power systems, and smart home automation.

Working Principle

The VCP24US05 is a DC-DC converter one side is a voltage reference designed to operate as a closed loop. The principle operation lies in using the feedback signal to control the duty-cycle of a switching control circuit, which regulates the output voltage. It uses a error correction technique to automatically maintain the desirable output voltage.

The voltage regulation of the VCP24US05 is based on peak current mode control, which implies that an internal ramp signal constantly rises until the sensed current is equal to the reference voltage or current. The primary control is implemented by a PWM that produces output pulses. These pulses correspond to the frequency of the output pulse width modulation in order to regulate the current of the output voltage. When the voltage error becomes too large, the user can adjust the time of these pulses.

The VCP24US05 converter functions by using an internal PWM circuit, voltage reference, and current sense comparator. The PWM circuit is modulated by the input signal of the voltage reference, which in turn triggers the current sense comparator with a proportional current. The current of the main switch is then regulated by the PWM voltage and current sense, allowing the user to continuously adjust the operating current.

The output voltage is regulated by a differential feedback circuit, which is ensured to provide maximum duty cycle without exceeding the internal power dissipation or output current limit. The PWM generating the switching of the main switch is then controlled by the voltage comparator with a reference voltage, creating a negative feedback loop for the regulation of the output voltage.

The VCP24US05 converter provides an efficient way to convert a DC input voltage into a programmable DC output voltage. Its closed-loop control system ensures maximum power efficiency and precise voltage regulation, making it suitable for a variety of applications.

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