MI-25W-MW-F1

DC-DC conversion is the process of converting a direct current (DC) input to a different DC output voltage. DC-DC converters are used to match the voltage output of electrical components to the voltage required by the application. The MI-25W-MW-F1 DC-DC converter is a switching regulator designed to deliver high efficiency and reliable operation over a wide temperature range.

The MI-25W-MW-F1 DC-DC converter is a high efficiency, isolated, and fixed frequency DC-DC converter that provides regulated output voltage. The device is designed to accommodate a wide input voltage range of 9V-72V and a functional temperature range from -40°C to +105°C. It is available in an epoxy encapsulated case or in an open frame configuration depending on the application.

Features and Benefits

• Wide input voltage range of 9V-72V
• Output voltage adjustable between 5V and 18V
• High efficiency up to 93%
• Fixed Frequency Switch Mode for most stable operation
• Isolated ground output
• Small size with 3” x 2” footprint
• EMI/RFI suppression

Working Principle

The MI-25W-MW-F1 DC-DC converter is a switching regulator designed to provide a reliable and efficient solution for the input voltage conversion from 9V to 72V. The converter consists of an input rectifier bridge, high frequency transformer, derived inductor, output filter capacitor, error amplifier and an oscillator to control the frequency of switching.

When the input voltage is applied, the output voltage is regulated as the error amplifier receives feedback from the output and the power switching is enabled to turn on and off according to the reference oscillator. During ‘on’ state, the input is rectified by the bridge rectifier and then transferred to the core of the transformer. The voltage is then stepped down to the desired output voltage from the output winding of the corresponding transformer before being filtered and regulated. During the ‘off’ state, the magnetic field in the transformer dissipates and the output voltage is regulated accordingly.

Applications

The MI-25W-MW-F1 DC-DC converter is suitable for telecommunications, industrial automation, automotive and other applications that require high efficiency and reliable operation over a wide temperature range.

In telecommunications, the device can be used to power communication systems such as RF amplifiers, satellite antennas, and base transceiver stations. In industrial automation, the converter is typically used to supply power to the control systems or the devices connected to the control system, including motors and drives. In automotive applications, the MI-25W-MW-F1 DC-DC converter is typically used to power lighting systems, cameras, navigation systems, and sensors.