Power

The introduction of the TDK-Lambda brand DTM110-C8 Class II (no ground wire needed) external power supplies rated at up to 110W output power has been announced by TDK Corporation. Certified to the IEC 60601-1 (medical) and IEC 60950-1 (ITE) standards, the series also complies to the latest EU CoC (Code of Conduct) Tier 2 and US DoE Level VI efficiency standards.

  Diodes Incorporated has announced its PI4ULS5V108. This device is an 8-channel, high speed, bidirectional level shifter designed for inter-IC communications between devices operating on different voltage supply rails. Targeted applications include PC, servers, networking, telecom, and consumer electronics.

The Programmable Logic Controller (PLC) system is usually connected to an external DC power supply to provide power to the controller unit, backplane and I/O modules. The input protection circuits are required to protect the PLC from various faults that may occur either on the field or the PLC side.

  ROHM has recently announced the availability of a new lineup of high power wide terminal thick-film chip resistors (10-910mΩ) suitable for current detection in a variety of applications, including inverters, AC, and energy-efficient appliances.

According to Texas Instruments, Super Cap is becoming very popular in many applications since its unique feature like more recharge cycle, better transient capacity, simpler charger management and less environment pollution. Typical multi-cell Cap in series requires buck boost topology to charge from empty to full when VIN is below five volts. 

When designing a switching power supply, you may have heard of electromagnetic interference (EMI). More and more applications must pass EMI standards in order for their manufacturers to receive approval for commercial resale. A switching power supply implies that there are electrical switchers inside the device, through which EMI radiates.

Texas Instruments explains that, in battery-operated environments, it’s important to pay attention to quiescent current when designing your power system block diagram. Some applications, such as cordless handheld garden tools, lighting controls and cordless lawnmowers, have low-quiescent-current specifications. These tools operate with a battery pack that has an operating voltage range from 12 to 48V or higher.

Explore and review training videos from the Power Supply Design Seminar 2018. The seminar materials provide rich, technical and practical information which combine new, advanced power supply concepts, basic design principles and ‘real-world’ application examples. Select any topic and start learning today.

In this on-demand training series from Texas Instruments, learn about a variety of LED driver design topics from TI experts. This series covers a broad spectrum of subject matter from PWM and analog dimming methodologies to more in depth videos on design considerations and overcoming specific system design challenges.

Targeting energy-saving power topologies, STMicroelectronics’ MDmesh M6 series 600V super-junction transistors are engineered for high efficiency in medium-power resonant and hard-switching converter topologies. The threshold voltage optimised for soft switching makes the the new transistors suited for LLC resonant converters and boost-PFC converters in energy-conscious applications.