Universal analog-to-digital multiplexer-demultiplexer
EDN Network
by Michael A. Shustov
6h ago
The possibility of creating a universal analog-to-digital multiplexer-demultiplexer is shown. Wow the engineering world with your unique design: Design Ideas Submission Guide As is known, a multiplexer and a demultiplexer is an electronic device designed for selective signal transmission from one of several inputs to one output, or, on the contrary, signal transmission from one input to one of several outputs. Channel switching is performed by digital signals supplied to the control inputs. First, let’s consider the operation of a control node containing key elements controlled by digital inp ..read more
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5 considerations when choosing a haptics manufacturer
EDN Network
by Kyle Skippon
6h ago
In the rapidly emerging world of haptic technology, businesses are increasingly recognizing the value of integrating haptic feedback into their products. In a study conducted by Immersion Corp. on consumer attitudes about high-definition haptic effects in smartphones, a vast majority of respondents (~90%) said they prefer mobile phones that offer haptic feedback. Another study from the University of Oxford found that the participants performed tasks better when notifications came with haptic feedback. This shows that haptics is poised to play a big role in shaping user perceptions and behavio ..read more
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Sidereal time versus solar time
EDN Network
by Aalyia Shaukat
1d ago
About time keeping, the definition of “sidereal” is “of or with respect to the distant stars (i.e. the constellations or the fixed stars, not the sun or planets)”, as defined after a google search. With that in mind, a quick and admittedly simplistic look at keeping earthly time is shown in Figure 1.   Figure 1 A comparison between solar days of 24 hours and sidereal days of 23 hours, 56 minutes, and 4.091 seconds. As the earth moves around the sun in its yearly orbit, the absolute direction in which some fixed point on the earth’s surface that is aimed directly at the sun changes ..read more
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Power Tips #128: Designing a high voltage DC-link capacitor active precharge circuit
EDN Network
by Tilden Chen and Hrag Kasparian
2d ago
Introduction Electric vehicles (EVs) typically feature a large DC link capacitor (CDC LINK) to minimize voltage ripple at the input of the traction inverter. When powering up an EV, the purpose of precharging is to safely charge up CDC LINK before operating the vehicle. Charging CDC LINK up to the battery stack voltage (VBATT) prevents arcing on the contactor terminals, which can lead to catastrophic failures over time. The conventional precharge method involves implementing a power resistor in series with the CDC LINK to create a resistor-capacitor (RC) network. However, as the total CDC LIN ..read more
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Palladium emulation: Nvidia’s Jensen Huang is a fan
EDN Network
by Majeed Ahmad
3d ago
Nvidia CEO Jensen Huang calls Palladium the only appliance more important to him than the refrigerator. At Cadence Design Systems annual event in Santa Clara, California, he also acknowledged that Nvidia has the largest installation of Palladium emulation systems. Earlier, during a fireside chat, Huang said that Blackwell AI processor would not exist without Palladium. So, what’s Palladium and why is it making waves for large and powerful chip designs? It’s an emulation tool built around Cadence’s custom processors, and it’s used for pre-silicon hardware debugging. Figure 1 Palladium Z3 and ..read more
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USB activation dongles: Counterfeit woes
EDN Network
by Aalyia Shaukat
3d ago
My Blackmagic Design video cameras are compatible with numerous editing software packages, but the company’s own DaVinci Resolve is a particularly compelling option. For one thing, there’s a close-knit synergy—or at least the natural potential for one—whenever the hardware and software come from the same company. DaVinci Resolve, for example, is able to access the camera’s gyroscope-generated metadata in order to implement post-capture stabilization of video footage; an admittedly inferior alternative to the in-body stabilization (IBIS) offered by competitors’ cameras, which operates during i ..read more
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Actuation gear aids aircraft electrification
EDN Network
by Susan Nordyk
6d ago
Microchip has combined gate driver boards with its Hybrid Power Drive (HPD) modules to ease the aviation industry’s transition to electric actuation systems. Configured with silicon or silicon carbide switches, the HPD modules cover a range of 5 kVA to 20 kVA and maintain the same footprint regardless of the power output. These integrated actuation power bundles provide a plug-and-play motor drive solution for the electrification of such systems as flight controls, braking, and landing gear. Power components are designed to scale based on application requirements. They can be used to create ..read more
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7-A switch protects USB-C connections
EDN Network
by Susan Nordyk
6d ago
The AOZ1377DI current-limiting switch from Alpha & Omega improves USB-C safety by providing a maximum load current of 7 A at up to 23 V. In addition to programmable current limiting, the switch offers true reverse current blocking, which prevents unwanted reverse current from flowing from VOUT to VIN. Useful for both sink and source applications, the AOZ13771DI has an input operating voltage range of 3.4 V to 23 V. Both VIN and VOUT terminals are rated at an absolute maximum of 28 V. Integrated back-to-back N-channel MOSFETs provide a typical on-resistance of 19 mΩ and a high safe operat ..read more
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32-bit MCUs pack ample memory and resources
EDN Network
by Susan Nordyk
6d ago
Microcontrollers in the GD32F5 series from GigaDevice are equipped with 7.5 Mbytes of on-chip flash and 1 Mbyte of SRAM, both supporting ECC verification. Up to 2 Mbytes of code flash can be configured for zero-wait-state operation, improving processing speed and efficiency. A maximum of 2 Mbytes of memory is also available for read-while-write OTA updating. Additionally, the MCUs accommodate a variety of external memories. The GD32F5 series of MCUs is based on an Arm Cortex-M33 processor. This 32-bit core operates at up to 200 MHz and delivers a performance rating of 3.31 CoreMark/MHz. An i ..read more
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AI-powered processors drive business PCs
EDN Network
by Susan Nordyk
6d ago
AMD has rolled out the Ryzen Pro 8040, a series of advanced x86 processors with built-in AI for business laptops and mobile workstations. By leveraging the CPU, GPU, and dedicated on-chip neural processing unit (NPU), the Ryzen AI-enabled processors are able to provide more dedicated AI processing power than previous generations. According to AMD, these devices are capable of delivering up to 16 dedicated NPU TOPS, or trillions of operations per second, and up to 39 total system TOPS. The premier model in the Ryzen Pro 8040 lineup is the Ryzen 9 Pro 8945H. This powerful processor is out ..read more
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