GFR4C25300

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GFR4C25300 is a high-efficiency, high-frequency, soft-switching power converter for industrial applications and high-dynamic systems. It works by converting direct current (DC) electricity to alternating current (AC) for various applications in power conversion. This AC electricity is then formed into high-efficiency sinusoidal waveforms for efficient power transmission. The output of the converter can be regulated by controlling the input voltage and setting the output frequency. The entire power converter system is controlled by an integrated control unit. GFR4C25300 is widely used in industrial and automotive applications, such as power supply for servo motors and motor drives, solar cell string, safe rail systems, hybrid and electric vehicles, and charging and discharging systems.

In order to optimize efficiency and reduce costs while improving dynamic performance, GFR4C25300 has several features. First, it uses active bursting energy to reduce switching losses. This bursting energy is then stored in the power inductor, ensuring that it can support a large number of switching cycles. Second, it uses a synchronous rectification technique to reduce switching losses over a wide range of operating conditions. Finally, the system includes a current-sensing scheme, which prevents the output current from wandering. This is useful when there are frequent changes in load conditions.

GFR4C25300 features a comprehensive set of features and parameters, tailored to the specific requirements of industrial and automotive applications. In its working mode, two main stages are involved, namely, the full-bridge converter and the phase-shifted full-bridge converter. In the full-bridge configuration, the input voltage is converted to a symmetrical alternating current (AC) voltage. This is then rectified by four self-pulse transistors to a low DC voltage. The AC voltage is then sent to the phase-shifted full-bridge converter. This multiphase configuration reduces the forward voltage and extends the transient response time.

In its working principle, the wide range of switching frequencies ensures that the output power is efficiently transmitted. This is achieved by minimizing core losses and ensuring high switching speeds. When the input voltage is changed, the resulting current ripple in the DC link is limited. This loop works in conjunction with the load current loop and helps to maintain the output current and voltage within the required parameters. The current loop for control is then used to minimize the noise in the output voltage.

Overall, with its high-frequency cutting technology, GFR4C25300 is an efficient and robust power converter for industrial applications. It is well-suited for automotive, portable, and stationary applications and is suitable for a wide range of output power requirements. This power converter system is designed to keep the output voltage and current within the required parameters while reducing power consumption, improving dynamic performance, and minimizing switching losses.

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