The new MAX13256 from Maxim is an H-bridge transformer driver with a wide input voltage range for isolated power supplies. It is designed to allow engineers to quickly design a highly efficient (up to 90%) isolated DC-DC converter.
The chip drives a transformer’s primary coil with up to 300 mA of current from an 8 V to 36 V d.c. supply which can deliver up to 10 W of isolated power. Users can choose their own transformer winding ratio which defines the output voltage, thus allowing the selection of virtually any isolated output voltage. This robust supply range eliminates external voltage regulation. Integrated protection features prevent system-level failures. These capabilities make the driver suitable for creating isolated power supplies in smart grid metering applications and industrial and medical equipment.
Smart grid applications utilising wired interface communications require isolated power to protect against high-voltage mains that can damage both the installer and the power meter’s internal electronics. The isolated power is typically generated with a transformer and discrete components which increase the solution size and add cost. The MAX13256 drives the transformer that acts as the additional form of isolation from high-voltage mains.
A smart grid has different requirements for input voltage and output power that vary based on the type of interface used to communicate with the smart meter. The MAX13256’s 8 V to 36 V input voltage range addresses these diverse power supply input requirements. It also eliminates external voltage regulation and enables flexible transformer options to satisfy a wide range of power output requirements.
Adjustable current limiting allows indirect limiting of secondary side load currents. An over-current limit is set by an external resistor over the 215 mA to 650 mA range. An active-low FAULT output asserts when the device detects an over-temperature or over-current condition.
Full sensor to cloud solution CST Electronics
Telecoms, Datacoms, Wireless, IoT
NeoCortec has demonstrated the seamless and rapid development of full sensor-to-cloud solutions using NeoMesh Click boards from MikroE and the IoTConnect cloud solution from Avnet.
Read more...Analysis of switch-mode power supply: inductor violations Altron Arrow
Editor's Choice Power Electronics / Power Management
Common switch-mode power supply (SMPS) design errors are discussed, and their appropriate rectification is specified, with details on complications that arise with the power stage design of DC-DC switching regulators.
Read more...Banana Pi with NPU CST Electronics
AI & ML
The latest Banana Pi SBC, the BPI-M7, is powered by Rockchip’s latest flagship RK3588 octa-core 64-bit processor, with a maximum frequency of 2,4 GHz.
Read more...Compact PCB-mount SMPS RS South Africa
Power Electronics / Power Management
Traco Power’s 5W PCB-mount switch mode power supply (SMPS) offers high efficiency, and is well suited for a variety of applications in the automation, electronics, electrical and mechanical industries.
Read more...AC-DC brick PSU Conical Technologies
Power Electronics / Power Management
These PSUs have a typical efficiency of up to 92%, and a power factor value of up to 0,99. They are available in 12, 24, 28, 48 and 54 V output versions.
Read more...5 kW switching PSU range Conical Technologies
Power Electronics / Power Management
Mornsun has released a new switching power supply range, the LMF5000-25Bxx, which has a 5000 W capacity, and features universal AC input configurations.
Read more...Reliable charging range Current Automation
Power Electronics / Power Management
Whether you’re powering essential electronics, keeping emergency equipment operational, or maintaining the performance of critical machinery, the need for dependable charging solutions cannot be overstated.
Read more...Microchip expands its mSiC solutions EBV Electrolink
Power Electronics / Power Management
The highly integrated 3,3 kV XIFM plug-and-play digital gate driver is designed to work out-of-the-box with high-voltage SiC-based power modules to simplify and speed system integration.
Read more...Dual-port USB-C power delivery solution Altron Arrow
Power Electronics / Power Management
Infineon’s CYPD7272-68LQXQ is the tray packing option of the company’s dual-port USB-C power delivery solution and features an integrated dual-port USB-C PD + DC-DC controller.
Read more...Hardened-grade network switches CST Electronics
Computer/Embedded Technology
Lantronix’s hardened switches provide Layer 2 or Layer 3 networking, and are available as Power-over-Ethernet (PoE) or Power-over-Ethernet Plus (PoE+).
printer friendly version