TMR 9-4822

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DC-DC converters convert a fixed input voltage into an adjustable output voltage; they are often used in portable electronic devices and in automotive, military and aerospace applications where wide input voltage ranges and short circuit protection is required. The TMR 9-4822 is a type of DC-DC converter. It has been designed to safely and reliably convert an input voltage of 48V to an adjustable output voltage of 12V to 48V with an adjustable output current of 0.4A to 4A.

The TMR 9-4822 is a non-isolated step-down DC-DC converter. It has an internal current limit circuit that will limit the output current to the maximum rated level of 4A. It also features an adjustable output voltage range from 12V to 48V, with a total voltage adjustment range of 7V-58V. As well as this, the converter has built-in over-voltage protection, enabling it to continue to operate even in the presence of a higher input voltage.

The working principle of the TMR 9-4822 is based on the use of a switching element. A power transistor is connected between the output and ground, while an output switch is connected between the input and the output. When the input voltage is higher than the required output voltage, the power transistor switches on, routing current from the input to the output. This provides a regulated output voltage at the reduced level. When the input voltage is lower than the required output voltage, the output switch switches off, preventing the current from passing to the output, maintaining the output voltage.

The TMR 9-4822 is suitable for a variety of applications requiring a regulated output voltage from an unregulated source. This includes LED lighting, medical instrumentation, industrial equipment control, data acquisition, power conditioning, audio-video systems, and computer peripherals. It is also suitable for battery operated equipment, such as solar panels, where the voltage is supplied by batteries and the output voltage needs to be regulated.

The TMR 9-4822 can provide the highest resolution of the output voltage due to its adjustable output voltage range. This makes it suitable for applications requiring precise voltage regulation. Moreover, the built-in over-voltage protection reduces the risk of damage due to an unexpected high input voltage. Additionally, the converter requires no additional external circuitry to limit the output current, making it a simple and cost-effective solution for many applications.

The TMR 9-4822 is a versatile step-down DC-DC converter that is able to convert a fixed input voltage of 48V to an adjustable output voltage of 12V to 48V with an adjustable output current of 0.4A to 4A. Its adjustable output voltage range and current limiting circuit make it suitable for a variety of applications, including LED lighting, medical instrumentation, power conditioning, and battery-operated equipment.

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