RW-4812D

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DC DC Converters are commonly used to convert an unstable energy source into a continuous and stable energy output which can be used in many different ways. One such application is the RW-4812D, which is designed for applications requiring high power density, input voltage conversion, and high efficiency.

The RW-4812D converter is a regulator that can convert a wide input voltage range from 24Vdc to 480Vdc into a regulated output voltage of 24Vdc with a continuous power output of up to 1,200W. It is a non-isolated regulator that is highly efficient, offering up to 96.6% peak efficiency. It is also highly reliable; the RW-4812D has a mean time before failure (MTBF) of up to 1.45 million hours.

To achieve its remarkable performance, the RW-4812D utilizes a combination of two distinct power conversion technologies: pulse-width modulation (PWM) and Buck, both of which are well-known for providing high efficiency and reliable performance. In order to enable the RW-4812D to convert the wide input voltage range and sustain such high efficiency, both technologies are used together in an advanced power conversion topology. This allows the RW-4812D to work with an input voltage range of 24Vdc to 480Vdc with a minimum number of components. This eliminates the need for complicated circuitry as well as reducing the size of typical industrial power converters.

The PWM technology works by generating a variable-duty-cycle pulse to regulate the input current. This technique balances the on and off times of the switches to effectively control the input current, resulting in high efficiency and low input ripple to the circuit. The constant-on-time (COT) mode of operation keeps the peak current as low as possible, resulting in less switchinglosses and improved efficiency at high frequency.

The Buck portion of the converter works in a similar manner, generating a fixed-frequency pulse-width modulated output to regulate the output voltage. This ensures that the output voltage remains tightly regulated to provide a stable output voltage, even under variations in the load. The Buck path provides smooth response to pulsed loads and allows the RW-4812D to achieve peak efficiencies of up to 96.6%.

The RW-4812D is therefore an incredibly efficient and reliable power conversion solution for applications requiring high power density and input voltage conversion. The combination of its advanced power conversion topology and the use of two distinct power conversion technologies allows the RW-4812D to deliver up to 1,200W of continuous power efficiency and MTBF of up to 1.45 million hours.

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