MDM-31PCBRM7A174

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MDM-31PCBRM7A174 is a multi-mode Green-mode/PWM-mode off-line Quasi-Resonant flyback converter module with very low standby power. It is suitable for the applications of notebook adapters, mobile phone power adaptors, adapter/chargers, LED lighting and so on. It is specially suitable for the ac-dc adaptors with wide range input voltage.

The superior performance of MDM-31PCBRM7A174 is mainly because of the advanced control structures. The controls are mainly divided into two parts. The first part contains a low-cost Zero-Voltage Switching (ZVS) Green-mode control circuit that offers the advantages of low conduction losses, no need for over-current detection or over-voltage detection circuits, and low component count.

The second part contains an active Primary-Side Regulation (PSR) circuit that controls the output voltage. Its main function is to perform power-factor correction and to maintain constant output voltage under changes in load or input voltages.

In terms of safety protection, MDM-31PCBRM7A174 also provides comprehensive protection features, like overvoltage protection (OVP), undervoltage protection (UVP), overtemperature protection (OTP), and short-circuit protection (SCP) .The OVP and OTP protect the device from overvoltage and overtemperature conditions. The UVP protects the device from an unsafe or out-of-range operating input voltage.

In summary, MDM-31PCBRM7A174 provides wide range of applications with its advanced control structures, power saving and extensive safety protection. It is suitable for ac-dc adaptors with wide range input voltage, and is a cost-effective flight-back converter.

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