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Home > Other > Emerson Network Power IPM300 DC/DC Converter

Emerson Network Power IPM300 DC/DC Converter

Update Time: 2019-12-19 22:18:07

The Emerson Network Power IPM300 DC/DC Converter is a 300 W dual-input power module for Advanced TCA? (ATCA?) boards. The IPM300 offers a rugged quarter- brick solution to implementing dual-redundant, hot-swap -48V inputs with EMI filtering. When combined with a variety of Emerson Network Power standard dc-dc converters, the IPM300 provides a comprehensive power solution for a wide variety of ATCA?, telecom, and server and storage applications.

DC-DC converter

The DC/DC converter is a voltage converter that effectively outputs a fixed voltage after the input voltage is converted. There are three types of DC/DC converters: step-up DC/DC converters, step-down DC/DC converters, and buck-boost DC/DC converters. Three types of controls are available depending on the requirements. The PWM control type is highly efficient and has good output voltage ripple and noise. The PFM control type has the advantage of low power consumption even when used for a long time, especially at a small load. PFM control is implemented during PWM/PFM conversion type small load, and is automatically switched to PWM control at heavy load. At present, DC-DC converters are widely used in mobile phones, MP3 players, digital cameras, portable media players and other products. It belongs to the chopper circuit in the circuit type classification.

DC/DC Converter

Design skills

The DC-DC circuit design must consider at least the following conditions:

1. The range of the external input supply voltage and the magnitude of the output current.

2. DC-DC output voltage, current, system power maximum.

Based on the above two points to select the PWM IC to consider:

1. The maximum input voltage of the PWM IC.

2. The frequency of the PWM switch. The choice of this is related to the efficiency of the system. For the storage inductor, the choice of the size of the capacitor also has a certain impact.

3. The maximum rated current and its rated power that the MOS tube can withstand. If the DC-DC IC has its own MOS, only the rated current of the IC output needs to be considered.

4. MOS switching voltage

Diodes: Schottky diodes are commonly used. When choosing, consider the reverse voltage, forward current. In general, the reverse voltage is twice the input supply voltage, and the forward current is twice the output current.

Capacitance: The choice of capacitor is based on the frequency of the switch, the requirements of the system ripple and the output voltage requirements. The equivalent resistance inside the capacitor and capacitor determines the ripple size (of course also related to the inductor).


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