VQB75W-Q24-S3R3

DC-DC converters are power solutions for various applications in providing reliable power to the circuit, which also comes with a wide range of configurations. The VQB75W-Q24-S3R3 is among the DC-DC converters developed and designed by Lisun Electronics Co. Ltd. This series DC- DC converter is most suitable for high frequency, high current, and ultra-small size applications due to its world-class design. This article will explain the application field and working principle of the VQB75W-Q24-S3R3, and also explain why this DC-DC converter should be used in certain applications.

Configuration and applications

The VQB75W-Q24-S3R3 is a low-cost, high-efficiency DC-DC converter with a wide range of configuration options. It comes in a very small package size, making it suitable for a variety of applications. It has an input range from 10 volts to 75 volts and offers an output power of 75 watts. It also features overvoltage protection, short-circuit protection and current limit protection, making it extremely reliable and safe in various applications.The VQB75W-Q24-S3R3 is suitable for a wide range of applications, including computer systems, networking equipment, automotive, industrial, and defense applications. It is also suitable for applications where high-efficiency, small size, and low cost are important.

Working principle

The VQB75W-Q24-S3R3 uses a buck-boost topology, making it highly efficient and reliable. The buck-boost topology is a two-stage conversion method. The first stage is a buck step-down conversion from the input voltage to an intermediate voltage. The second stage is a boost step-up conversion from the intermediate voltage to the output voltage. The buck step-down converter is composed of two power semiconductor switches, an inductor, and a diode. In the first stage, the two switches are alternately driven by a control circuit and switched in a pulse-width-modulated (PWM) manner. During the high side switch on state, a large portion of input voltage will be dropped across the inductor, and the rest will be dropped across the low-side switch. When the high-side switch is off, the current stored in the inductor will flow through the diode and output capacitor to the output port, forming a step-down conversion.In the boost step-up converter, one of the two switches will be switched in a power-monitoring way (peak-current-mode control or constant-current-mode control) and the other will be driven in a PWM manner. In this way, a desired output voltage can be achieved according to the duty cycle of the PWM signal, forming a step-up conversion.

Advantages

The VQB75W-Q24-S3R3 DC-DC converter offers several advantages, including high efficiency, high power density, low cost, and small size. It is capable of achieving more than 90% efficiency with its buck-boost topology, which will help to minimize power loss and maximize system heat dissipation. In addition, the high power density of this DC-DC converter makes it suitable for applications that require a very high density of power output.Moreover, the VQB75W-Q24-S3R3 is cost-effective, and can be used in various applications without having to sacrifice quality. Finally, this DC-DC converter is extremely small in size, making it suitable for applications where space is limited.

Conclusion

The VQB75W-Q24-S3R3 is a highly efficient and reliable DC-DC converter that can be used in a wide range of applications, including computer systems, networking equipment, automotive, industrial, and defense applications. This DC-DC converter is capable of achieving high efficiency with its buck-boost topology and a high power density, making it suitable for high-frequency, high-current, and ultra-small sized applications. In addition, the VQB75W-Q24-S3R3 is highly cost-effective and can be used without sacrificing quality. Finally, its small size makes it suitable for applications where space is limited.

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