H3X Technologies’ Post

Interested in Radial Power Combiners? Learn more in the April issue! "Radial Power Combiners—An Overview: A Comprehensive Analysis of Power Combiners, Their Structures and Evolution From Their Inception to the Present" by R. Kazemi and A. E. Fathy. This paper reviews developments in X-band power combiner designs that allow the combined outputs of multiple solid-state power amplifiers to compete with a traveling wave tube amplifier with about the same total output power. https://lnkd.in/eh38Y6bB #MicrowaveTechnology #Innovation #MicrowaveMagazine #AprilIssue #MicrowaveEngineering #PowerCombiner #RadialPowerCombiner #PowerAmplifier #TravelingWaveTubeAmplifier #SolidStateAmplifier

I’m proud to announce my completed project for my electromagnetics class. It consists of a DC motor. Attached to the sides of the alkaline AA battery are some paper paper clips by using electrical tape. A copper wire was then winded with 7 turns, which generates a magnetic field. We then have a small stack of neodymium magnets that interacts with the magnetic field created by the copper wire, which will cause the copper wire to rotate. We know have a functioning miniature DC motor. The pinned comment shows full report was written about the design process as well as an analysis of the Lorentz force exerted on the copper wire: #DCmotor #Electromagnetics #ElectricalEngineering #LorentzForce #DIY

At the heart of every modern surge arrester lies a critical component: the Metal Oxide Varistor (MOV). These MOVs are meticulously designed and strategically stacked to meet specific performance needs, such as: ⚡ Protection levels (residual voltage) ⚡ Energy absorption capabilities ⚡ Charge transfer ratings ⚡ Voltage ratings for temporary overvoltages Key Design Insights: 1️⃣ Stack Configuration: The number of MOVs in a column corresponds to voltage ratings, while parallel columns increase energy and charge ratings. 2️⃣ MOV Diameter: Typically limited to ~120 mm, it determines the MOV’s ability to handle high current densities from transient surges without damage. 3️⃣ MOV Height: Generally restricted to ~45 mm, requiring vertical stacking for high-voltage applications. 🔍 Dive deeper into the science behind surge arresters and explore how MOV technology is driving advancements in power system reliability: https://lnkd.in/dSXXzYwP

A novel planar balanced-to-balanced (BTB) microstrip filtering crossover with high isolation and common-mode (CM) suppression is proposed in this paper. The circuit structure is based on microstrip transmission lines without coupling sections, which can reduce insertion loss and enhance isolation. Specific theoretical analysis of the BTB filtering crossover configuration using transfer matrix and mixed-mode scattering parameters is performed. In order to verify the validity of the theory analysis and design, a microstrip BTB filtering crossover prototype at the center frequency of 2.45 GHz is fabricated and measured with high isolation and excellent CM suppression. Link avalable in https://lnkd.in/ekwygXuZ #SBMO #Jmoe

🔧 Understanding Current Sense Transformers 🔧 In the latest video, Dr. Ali Shirsavar from Biricha Digital Power dives deep into the operation of current sense transformers and how to select the right one for your power supply. 📈🔍 Key Topics Covered: - The importance of choosing the correct current sense transformer - Understanding “current gain” in current sense circuits - Avoiding issues like signal flattening and subharmonic oscillations - Real-life experimental results to illustrate key concepts Watch the full video here: https://lnkd.in/dEqzPm3t #PowerSupplyDesign #CurrentSense #ElectricalEngineering #TechEducation #Biricha #OMICRONLab #Bode #Bode100 #Bode500

Our Permanent Electro Holding Magnets include a permanent magnet with an excitation coil wound. Just like an electromagnet the magnetic circuit has to be switched on/off. The permanent magnet means that the magnetic circuit is open in the switched off state and therefore generates a holding force without the need for constant application of current. https://lnkd.in/ev8xBcBk

Hello, everyone. Today I'm happy to share my experience in building single phase PWM based inverter (Single pulse conduction mode with quasi static waveform). I have built this using 4 MOSFET(IRFZ740),firing circuit built with MCT6 Optocoupler and Multiple pulse transformer. Below video is the result part of the Circuit. By building this circuit I was able to understand the importance of dead band , Effect of modulation index with reference signal by a conventional 2 pulse inverter. My next Study is on 5,7,9,11 multilevel inverter built using Asymmetrical H-Bridge Cascaded topology and single pulse strategy for firing conduction. HemaChandaSanam

⚡ Check out the amazing BRxXF Series, a new line of high voltage diodes designed by Dean Technology! The BRxXF Series is an axial-leaded, high voltage diode line that offers a fast reverse recovery of 40nS, a higher forward surge (IFSM) rating of 50 to 80A, and low leakage current. Further, BRxXF units range from 2 to 10kV at 600 to 1500mA. For more information and datasheet 👉 https://lnkd.in/e3sMmjqB

#Article 📜 Generalized Proportional Integral Observer and Kalman-Filter-Based Composite Control for DC-DC Buck Converters by Pengyu Qiao and Hao Sun 🔗 https://lnkd.in/gmK3kbva MDPI; Southeast University #DCDCbuckconverter #GPIO #Kalmanfilter #Abstract There are uncertainties and disturbances in the DC-DC buck converters system; in terms of actual working conditions, they are often very complex, exhibiting a polynomial form of time series. Therefore, a single controller and an observer that can only estimate slowly varying disturbances will lose their effectiveness. The generalized proportional integral observer can generally be used to estimate the disturbances in the polynomial form of time series, but it is usually necessary to select a high gain to achieve the fast convergence of the observer, which makes it sensitive to measurement noise. Therefore, before designing the controller that needs to estimate information, it is necessary to design a new structure that combines an observer and a Kalman filter. The filter is used for noise filtering, and the observer is used for the online reconstruction of disturbances. This can solve the above problems. Then, the whole control strategy is designed based on backstepping control. Theoretical analysis and experimental verification can effectively illustrate the feasibility and superiority of this strategy.

In this video, Dr. Ali Shirsavar from Biricha Digital Power explains the operation of a current sense transformer and how we select the correct one for your power supply. He also discusses the "current gain" of the current sense circuit for loop disguises and how an incorrectly selected current transformer could cause a flattening of the current sense signal and subharmonic oscillations. As it is customary in these videos, experimental results will be given at the end of the video to show what happens in real life. https://lnkd.in/dEqzPm3t #biricha #bode100 #bode500 #OMICRONLab #currentgain #oscillation #experiment