Technical Features
November 2017
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Figure 1: Gate driver circuit diagram with a Bourns transformer
While gate driver-based converters deliver improved efficiency, speed and signal integrity, their high frequency switching features can produce elevated levels of conducted electromagnetic interference (EMI), posing challenges to electromagnetic compatibility (EMC) and overall system reliability. To solve this
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Date:
03/29/2026
Figure 1. Schematic showing ON Semiconductor’s STK984-190E in an automotive fan system for climate control
As we are all very well aware, there are mounting concerns about the state of the environment and the impact that carbon emissions are having on the global ecosystem. There is also rising uncertainty about the long term supply of oil, as greater demand from emerging economies means that reserves are being consumed at
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Date:
11/29/2017
Figure 1. Metallized polypropylene film segmented into a mosaic design (left) and an electrical schematic illustrating how the segmented film operates during the controlled self-healing process
Automakers around the world are actively anticipating the decline of internal combustion engine (ICE) models and the rise of clean energy fleets comprised of electric, hybrid electric, and plug-in hybrid electric vehicles (EVs, HEVs, and PHEVs). Due to the steadily increasing popularity of clean energy automotive te
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Date:
11/29/2017
May 25, 2018 is the deadline for implementing the European General Data Protection Regulation (EU-GDPR) and the derived data protection legislation, which is the strictest seen to date. By this time, practically all companies processing personal data are required to implement extensive measures to protect this da
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Date:
11/29/2017
Figure 1. Solid State Lighting saving more than 60% energy compared to conventional lighting in Houston
The lighting market segment is very diversified, but Solid State Lighting (SSL), based on LEDs, has made the Edison bulb effectively obsolete and is now infringing on areas where fluorescent lighting excels. The possibilities offered by SSL bring advantages in industrial applications, such as for roads and parking lo
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Date:
11/29/2017
Figure 1
Since the 1960s, the electric power industry has developed, refined and relied upon dissolved gas-in-oil analysis (DGA) to diagnose the degradation of insulating materials inside liquid-filled transformers. Dissolved gas concentrations are routinely measured by drawing oil samples from the transformer, extracting th
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Date:
11/29/2017
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Figure 1. Wireless Magnetic Window Alarm Sensor
Battery runtime is a critical feature of remote wireless sensors. Wireless sensors are becoming ubiquitous, penetrating the most diverse applications like home automation (Figure 1), activity monitors, remote sensor nodes, and tire pressure monitors, to mention a few broad categories. Runtime requirements, ra
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Date:
11/29/2017
Electric Vehicle (EV) power electronics offer the largest growth potential to the Power Semiconductor Market over the next 5-10 years. Today’s EV Motor Controller Inverters are limited by conventional power silicon (Si) IGBT and diode performance, including their higher power density, higher efficiency, lower th
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Date:
11/29/2017
Figure 1. X Series RC-IGBTs
Ever since it commercialized insulated gate bipolar transistor (IGBT) modules in 1988, Fuji Electric has contributed to miniaturization, cost reduction, and performance improvement of power conversion equipment. It has done so through many technology innovations to miniaturize, reduce lo
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Date:
11/28/2017
Figure 1. NVDC Power Path Management Structure
A commonly used power path manage scheme, dynamic power path management (DPPM), is discussed in this article. The DPPM control loop adjusts the charge current dynamically based on the input source current capability and load current level to achieve a minimum charge time for a given source and system load. With DP
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Date:
11/28/2017
Large battery stacks consisting of series-connected, high energy density, high peak power Lithium polymer or Lithium-Iron Phosphate (LiFePO4) cells are commonplace in applications ranging from all-electric (EV or BEV) and hybrid gas/electric vehicles (HEVs and plug-in hybrid electric vehicles or PHEVs) to energy stor
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Date:
11/28/2017
Figure 1. CO2 legislation
Worldwide automakers have begun releasing vehicles with a new 48-volt (48V) power subsystem, also known as board net. The first announcements came from European OEMs, like Audi, who announced a 48V system with its SQ7 TDI model. The Audi 48V system powers an electric compressor that eliminates turbo lag and an
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Date:
11/28/2017
Figure 1. Deep learning builds artificial intelligence through learning algorithms
Humans are smart, achieving wisdom, experience and intelligence through years of learning and data accumulation. Computers seem smart due to their ability to retain information but until recently they lacked the capability to autonomously learn in order to perform tasks or make decisions. While a human brain co
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Date:
11/02/2017
Figure 1. Gate drive transformer driven by ADP3654 solution
The challenge of isolation in a digital power supply is in sending digital or analog signals across the isolation barrier with fast speed, accuracy, and compact size.
However, the traditional optocoupler solution has low bandwidth and current transfer ratio (CTR), which causes wide variation with temperatu
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Date:
11/02/2017
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Figure 1. A block diagram of a basic voltage-mode control system
Power-efficiency has never been more important, both in portable devices and larger computing equipment, such as servers and base stations.
In portable electronics, such as smartphones and laptops, better power efficiency means longer battery life, possibilities for new functionality or smaller form factors.
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Date:
11/02/2017
Figure 1. Medical power system with secondary DC/DC isolation
A fundamental tenet of medical electrical equipment that comes into contact with patients is that it must be safe to use, both for the patient and the operator. Consequently, there are rigorous standards that apply to such medical equipment, which entail a detailed risk assessment during its design to ensure no
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Date:
11/01/2017
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Figure 1. Code execution using PTG interrupts
Today’s embedded applications are extremely complex with a single microcontroller handling multiple functions. These applications demand enhanced safety and optimal execution time with real-time response, along with seamlessly synchronizing various functions. From motor control with integrated power factor co
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Date:
11/01/2017
Figure 1. Fundamental thermocouple
Thermocouples are a commonly used type of temperature sensor that give accurate readings in applications ranging from lab test benches to industrial environments. Like many types of sensors, thermocouples can struggle with a common problem: the issue of acquiring accurate data. Before improving the accuracy of
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Date:
11/01/2017
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