QHL600300S48 Power Supplies - Board Mount

DC-DC converters are a key element in power electronics, providing power to machinery and systems from alternative energy sources and batteries, among other applications. They are frequently used in motor control and automation to regulate the power supplied by a motor to prevent power spikes. Their versatility makes them suitable for a wide variety of applications, including automotive, robotics, telecom, and industrial systems.

QHL600300S48 Application Field and Working Principle

The QHL600300S48 synthetic voltage DC-DC converter is a high-efficiency, non-isolated buck converter designed to convert 6V to 32V input voltage to a constant 12V output voltage through a synchronous rectification technique. The maximum output current of the device is 3 amps (300 mA) and the power output is equal to the input power, making it ideal for applications that need to regulate power efficiently. With a typical efficiency of 94%, this device is capable of producing power ratings of up to approximately 18W.

In addition, the converter features a wide supply voltage range of 6V to 32 V, an adjustable output voltage range of 5V to 16V and an adjustable output current of 0.2A to 3A. This allows for a wide range of applications, including industrial equipment, LED lighting, automotive electronics, and medical equipment. In addition, the small size and high efficiency of the converter makes it suitable for space-constrained applications such as wearable electronics and hand-held devices.

The working principle of the QHL600300S48 converter is based on the Buck converter converter topology. In this system, a MOSFET is connected between the input and output, and a current is passed through the MOSFET to control the output voltage. This current is controlled by a Pulse Width Modulation (PWM) signal that is sent to the MOSFET using a voltage regulator. In addition, the current through the MOSFET is proportional to the input power, so the output voltage can be kept constant by adjusting the duty cycle of the PWM signal as the input power varies.

In summary, the QHL600300S48 DC-DC converter is a high efficiency, non-isolated buck converter that can supply up to 18W of power. Its wide supply voltage range, adjustable output voltage and current ratings, and small size make it suitable for a wide variety of applications, including industrial equipment, LED lighting, automotive electronics, and medical equipment. The device operates on the buck converter topology, where a MOSFET is controlled by a PWM signal to regulate the output voltage.