Power Supplies

September 2021
High Voltage Precision Chip Resistors Offer 0.1% Tolerance
High-voltage applications frequently require high-voltage resistors with high accuracy for voltage division, monitoring and control. Some applications with more moderate working voltages may experience high voltage surges which may damage general purpose chip resistors.  For applications such as these,
. . . Learn More
Date:
09/29/2021
1kW Power Supplies w/ Active-PFC for Industrial Applications
ABSOPULSE Electronics introduces the PFHI 1K-FXW series of high input voltage, wide input range switched-mode power supplies with active power factor correction (PFC) designed for 1kW industrial applications. The power supplies operate over 180V to 480V AC-input range, 400Vac nominal input or custom. 
. . . Learn More
Date:
09/28/2021
ROHM’s New EMARMOUR Op Amp Series
The devices feature an improved EMI immunity for automotive and industrial equipment applications requiring high-speed sensing in harsh environments, such as vehicle engine control units and anomaly detection systems for factory automation equipment.   In recent years, advancements in electrification and mounting d
. . . Learn More
Date:
09/23/2021
Versatile DDP/MDP1200 Series 1.2kW, Multi-purpose AC-DC PSU
Their clever design purposefully integrates high performance, versatility, interoperability and regulatory compliance to fulfil evermore demanding worldwide applications.   The built-in Digital Signal Processor (DSP) supports the PMBus open standard power management protocol, which enables diagnosti
. . . Learn More
Date:
09/16/2021
Packaging design avoids known flip-chip mounting challenges
The new resistor features a standoff construction that offers an improvement over regular flip chip technology.   The FRFS0402 is ideally suited for use in telecommunication network equipment (including 5G, downhole data center, or fiber optics), medical equipment (including pace makers or hearing-
. . . Learn More
Date:
09/16/2021
Infineon 22 kW industrial motor drive reference design
The reference design is a general purpose motor drive which features a nominal power of 22 kW and can be operated directly on a 380 to 480 V three-phase grid. The design can be fully re-used for customization and allows customers to evaluate Infineon’s products under real operating conditions. It is suitable
. . . Learn More
Date:
09/16/2021
Infineon and Panasonic accelerate GaN technology development
Gen2 offers higher efficiency and power density levels. The outstanding performance and reliability combined with the capability of 8-inch GaN-on-Si wafer production mark Infineon’s strategic outreach to the growing demand for GaN power semiconductors. In accordance with market requirements, Gen2 will be developed
. . . Learn More
Date:
09/16/2021
IQRB-2 rubidium oscillator handbook available now summarising key test data
The handbook summarises tests undertaken: from temperature stability and short-term stability to supply pushing and more.   The IQRB-2 fills the gap between the IQRB-1 and the IQRB-3; the IQRB-1 delivers a superb price performance ratio, whereas the IQRB-3 offers an exceptional phase noise performa
. . . Learn More
Date:
09/16/2021
Precision-Adjustable Current Limit Power Switch
Streamlining power system design and assuring ongoing reliability, this automotive-compliant device provides a controlled and protected power path. It is rated to handle continuous load currents of up to 1.5A. Key applications include protection of vehicle USB ports and ECU supply rails, and infotainment and telem
. . . Learn More
Date:
09/16/2021
GaN Gate Driver Boosts Speed, Flexibility, and Integration
The output is closely matched between high-side and low-side outputs, to handle high-frequency switching of GaN enhancement-mode FETs.   Also suitable for driving N-channel silicon MOSFETs at up to 20V, the STDRIVEG600 allows the flexibility to apply up to 6V gate-source voltage (VGS) on GaN devices to e
. . . Learn More
Date:
09/16/2021
Convection cooled power supplies with 200% peak-power
Designed for industrial applications requiring high levels of safety, the LHP150F and the LHP300F are certified according to EN62477-1 (OVC III). The products work over a wide universal input voltage range of 85 to264VAC and have a high typical efficiency rating of 93%. The LHP150F and LHP300F are available in
. . . Learn More
Date:
09/16/2021
Rutronik adds Infineon StrongIRFET 2 Power MOSFETs
They are suitable for both low and high switching frequencies. This new technology offers 40 percent improved RDS(on) and over 50 percent lower gate charge (Qg) compared to previous StrongIRFET™ devices. The higher power efficiency thus generated ensures improved overall system performance. The Infineon StrongI
. . . Learn More
Date:
09/16/2021
MagI³C-FDSM-36-V family extended with 12 V output voltage
The power module in a SIP-3 package represents a cost-effective solution to meet the requirements for the real-world voltage transients of a 24 V industrial power architecture. The new module operates from 16 to 36 VIN and generates a fixed output voltage of 12 V with current up to 1 A.   The FDSM
. . . Learn More
Date:
09/16/2021
85-305VAC input AC-DC power supplies for 15W to 320W applications
The nine new series (LCW15, LCW25, LCW35, LCW50, LCW75, LCW100, LCW150, LCW200 and LCW320) offer power levels from 15W to 320W. All models meet EN 55032 Class B conducted and radiated emissions for easy and low-cost integration and feature an integrated connector cover to enhance safety once installed The i
. . . Learn More
Date:
09/16/2021
Gate Driver Improves EconoDUAL IGBT Module Performance by 20%
The new drivers improve the performance of multiple parallel EconoDUAL modules by 20%, allowing users to eliminate one of every six modules from power inverters and converter stacks. In addition to saving the cost of the driver and module, this reduces control complexity and costs related to modules, wiring, hardware,
. . . Learn More
Date:
09/16/2021
Integrated 3-Phase MOSFET Gate Driver Maximizes Battery Life
The TMC6140-LA 3-phase MOSFET gate driver integrates all three bottom shunt amplifiers to provide a complete motor drive solution with 30-percent improved power efficiency, while simplifying design by reducing component count by half when compared to similar solutions.   The TMC6140-LA is optimized for performan
. . . Learn More
Date:
09/16/2021
85-305VAC Input AC-DC Power Supplies for Embedded Applications
XP Power has announced the introduction of the LCW series of regulated output cased AC-DC power supplies that is ideal for embedded industrial electronics, technology and equipment requiring household approvals. The nine new series (LCW15, LCW25, LCW35, LCW50, LCW75, LCW100, LCW150, LCW200 and LCW320) offer po
. . . Learn More
Date:
09/15/2021
Renesas Shows Dialog Synergies with 39 Winning Combinations
The Japanese company took that opportunity to host a press conference to explain the reasons for the acquisition further and to launch 39 of the company’s Winning Combinations to demonstrate how the Dialog portfolio meshes with Renasas products to allow Rensas to compete in new areas and applications. The fi
. . . Learn More
Date:
09/06/2021
Power Conversion Safety Basics

Click image to enlarge

Table 1: Potential hazards from a power supply

No power supply should produce other hazards itself, which include fire, fumes, releasing dangerous chemicals, emitting harmful radiation and causing physical injury from sharp edges and falling/flying objects or burns from hot surfaces. In a power supply design, all these effects must be considered and evaluated by
. . . Learn More
Date:
09/01/2021
Integration is What You Need

Click image to enlarge

Figure 1. WBG and silicon power switch Infineon brands positioning

Introduction Today’s switch-mode power supplies (SMPS) are smaller, more efficient, and lower-cost than ever. The key to their performance is the power switch technologies at their heart – but how should designers choose the right material for this and find the best component to meet their needs? While silicon is the most widely-known constituent of semiconductors, a new group of wide bandgap (WBG) materials is increasingly finding its way into applications. One example is gallium nitride (
. . . Learn More
Date:
09/01/2021