CS51227 by the output of 28V 5A DC power supply circuit
The CS51227 PWM controller circuit is designed to provide a stable and efficient power supply for various electronic applications. The input voltage range of 10V to 18V allows for flexibility in power sourcing, accommodating different battery or power adapter configurations. The output voltage of 28V is tightly regulated to within ±1%, ensuring that connected devices receive a consistent voltage level, which is critical for sensitive electronic components.
The starting voltage of 4.7V indicates the minimum voltage required for the circuit to initiate operation, while the starting current of 75A suggests that the controller can handle initial inrush currents effectively, making it suitable for applications with high startup demands. The ability to output a current of up to 5A provides sufficient power for a variety of loads, ranging from small electronic devices to larger systems that require more substantial power.
The PWM controller operates at a switching frequency of 1.0 MHz, which allows for efficient energy transfer and reduces the size of passive components like inductors and capacitors in the design. Additionally, the lower switching frequency of 250 kHz can be utilized in specific operational modes or for different load conditions, optimizing performance across a range of applications.
The output voltage ripple of 150 mVp-p is indicative of a well-designed power supply circuit, minimizing noise and ensuring stable operation for sensitive electronics. The efficiency rating of 90% demonstrates that the circuit is capable of converting input power to output power with minimal losses, which is particularly important in battery-operated devices where power conservation is a priority.
Overall, the CS51227 controller circuit represents an advanced solution for regulated voltage power supply applications, combining high efficiency, flexibility in input voltage, and robust output characteristics to meet the demands of modern electronic systems. CS51227 constituted by the output of 28V/5A DC power supply circuit as shown in FIG. CS51227 is a voltage type PWM controller, its switching frequency up l.0MHz, starting volta ge of 4.7V, the starting current is 75 A. The power supply input voltage is 10 ~ 18V, output voltage is 28V 1%, the output current is 0 ~ 5A, the switching frequency 250kHz, the output voltage ripple 150mVp-p, 90% efficiency.
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