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"A New Three-Phase Non-Isolated Photovoltaic Inverter for Suppressing L" by Mohua Biswas, Shuvra Prokash Biswas et al.

A novel three-phase grid-tied photovoltaic (PV) non-isolated inverter with improved performance owing to common mode current suppression as well as constant common mode voltage is presented in this paper. To compensate unexpected oscillations in stray capacitor voltage, three additional diodes are used with the full bridge circuit of traditional B6 inverter. Therefore, using total six insulated gate bipolar transistors (IGBTs) and three diodes, the proposed inverter eliminates the pitfalls of conventional grid-tied non-isolated PV inverters. Unipolar sinusoidal pulse width modulation (SPWM) method is utilized here in order to control the power switches of the presented inverter. Because of less voltage oscillations in stray capacitor, common mode voltage is hold to be constant. Consequently, extra leakage current flow is reduced significantly. The peak leakage current is found 8.184 mA and 5.132 mA RMS leakage current is recorded. The total harmonic distortions (THDs) of phase voltage ....

Common Mode Voltage , Dynamic Load , Leakage Current , On Isolated Inverter , Tray Capacitor , Nipolar Sinusoidal Pulse Width Modulation ,

Sonrai Memory Sues Dell for Patent Infringement


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6 hours ago
Sonrai Memory Limited filed a complaint on Monday in the Western District of Texas against Dell Technologies Inc. alleging that the defendant infringed its patents-in-suit for products such as laptops, desktop computers, and servers.
The patents-in-suit are United States Patent Nos. 6,724,241 (the ’241 patent); 6,920,527 (the ’527 patent); and 7,436,232 (the ’232 patent), which “relate to improvements in charge pump circuits,” “portable memory devices with both volatile and non-volatile memory,” and “regenerative clock repeating.”
The plaintiff claimed that Dell’s purportedly infringing products include laptops, desktop computers, and servers “with SanDisk/Toshiba 64L 3D NAND flash chips.” They alleged the products infringe the ’241 patent, entitled “Variable Charge Pump Circuit with Dynamic Load.” According to the claim chart, claim 1 of the ’241 patent states: “A charge pump circuit for generati ....

United States , Russ August Kabat , Dell Technologies Inc , Sonrai Memory , Sonrai Memory Limited , Western District , Dell Technologies , United States Patent , Charge Pump Circuit , Dynamic Load , Accused Product , Accused Products , Voltage Divider , Reference Voltage Regulator , Memory Limited , Russ August , ஒன்றுபட்டது மாநிலங்களில் , ரஸ் ஆகஸ்ட் கபாட் , டெல் தொழில்நுட்பங்கள் இன்க் , மேற்கு மாவட்டம் , டெல் தொழில்நுட்பங்கள் , ஒன்றுபட்டது மாநிலங்களில் காப்புரிமை , மாறும் சுமை , மின்னழுத்தம் வகுப்பி , நினைவு வரையறுக்கப்பட்டவை , ரஸ் ஆகஸ்ட் ,

HTC PAL LC Autosampler from CTC Analytics AG


Rating:
Application Area: High pressure liquid chromotography
The delivery system of this autosampler is unmatched in terms of cleanliness and robustness. The autosampler contains dynamic washing steps that sets it apart from other autosamplers, ensuring no carryover or cross contamination. Versatile to hold plates and vials, this thermostat autosampler enables the user to add on features, making it customizable to your lab s needs. Modules such as agitators, barcode readers, centrifuges, even diluters can be added on to the rail, making it the ultimate Lego-like autosampler.
Review date: 27 Jan 2021 |
PAL RTC
The new PAL3 with Smart technology is taking sample prep into a new dimension of performance, process safety, reliability, and ease of use. ....

Master Lab , Dynamic Load , Data Systems Supported , Control Interfaces , Areas Include , Htc Pal Lc Autosampler , Ctc Analytics Ag , குரு ஆய்வகம் , மாறும் சுமை , தகவல்கள் அமைப்புகள் ஆதரிக்கப்படுகிறது , கட்டுப்பாடு இடைமுகங்கள் , பகுதிகள் சேர்க்கிறது ,