JCM3048S12

DC-DC converters are important components used to convert a DC (direct current) source to another voltage level for a variety of applications. The JCM3048S12 DC-DC converter is a high power, isolated converter ideal for industrial applications requiring precise, stable power supplies such as motor control, steel mills, and many other applications. It features an isolated power topology with wide input voltage range, near unity power factor, synchronous rectification, and high efficiency of up to 96%.

The JCM3048S12 is a high power density, galvanically isolated and regulated flyback converter that operates from a wide input voltage range of 72V to 340V. It is rated for a continuous output power of up to 120W and features an internal synchronous rectifier, providing improved power efficiency over traditional rectifiers and isolated power factor correction, resulting in a near unity power factor.

The JCM3048S12 is designed to provide a tightly regulated output voltage of between 0.8V and 5.5V, with a maximum output current of 10A. It features an active phase-shift control circuit that can be used to optimize the device for a variety of different loads, enabling the device to efficiently deliver power for applications such as motor control, lighting, and many other applications. Additionally, it features an integrated current limit, thermal protection, soft-start, and a wide range of EMI filters.

The JCM3048S12 utilizes a high switching frequency to enable the use of smaller external components, reducing overall system cost. It is designed for use with a variety of standard input capacitors, with a range from 2200μF to 6800μF. It also features a parallel current sharing capability which ensures the correct power distribution to multiple devices.

The working principle of the JCM3048S12 is based on the flyback topology. In this architecture, the primary winding of the power transformer is switched on and off at a frequency determined by the active phase-shift control circuit. When the primary winding is switched on, current flows through the primary winding and a magnetic field is created around the transformer. When the primary winding is switched off, the magnetic field starts to collapse and induces a voltage into the secondary winding. This voltage is rectified and regulated to the required output voltage.

The JCM3048S12 is an ideal solution for industrial applications requiring precision power supply and efficient operation. Its wide input voltage range, high efficiency, and low component count make it an ideal choice for applications such as motor control, lighting, and other power converters. The device features a tightly regulated output voltage and current limit protection, along with an integrated active phase-shift control circuit that enables efficient operation under a variety of different loads. Additionally, its parallel current sharing capability ensures the correct distribution of power to multiple devices.