How Fiber-Optic Converters Ensure Clean EMC Tests

🚀 Day 3 of My Power Electronics Challenge 📌 Topic: Active & Passive Components ⚡ Active Components Definition: Components that need an external power source to function and are capable of controlling the flow of current. Examples: Transistors, Diodes, ICs, SCRs, MOSFETs. Key Role: Amplification, switching, and signal control in electronic circuits. 🔋 Passive Components Definition: Components that do not require an external power source and cannot amplify signals. Examples: Resistors, Capacitors, Inductors, Transformers. Key Role: Store, resist, or dissipate energy to support overall circuit operation. ✨ In Short: ➡️ Active = Control + Amplify + Need Power ➡️ Passive = Support + Store/Dissipate + No Power Needed #Day3 #PowerElectronics #Transistors #ElectronicsEngineering #LearningJourney #PrachiTijare

⚡Why does a diode allow current in one direction but block it in the other? The answer lies in its I-V characteristics! 📉⚡ 🔁 Understanding the Current-Voltage (I-V) curve of a diode is crucial for designing rectifiers, regulators, and switching circuits. Let’s break it down! 📌 Key Regions of the I-V Curve ✅ Forward Bias Region (+V, +I) ⤷ Small current flows until threshold voltage (Vₜ) is reached ⤷ Silicon diode: ~0.7V | Germanium diode: ~0.3V | LEDs: ~1.8V - 3.5V ⤷ After Vₜ, current rises exponentially ✅ Reverse Bias Region (-V, ~0I) ⤷ Minimal leakage current flows (almost no conduction) ⤷ Acts as an open circuit ✅ Breakdown Region (-V, High -I) ⤷ If reverse voltage exceeds limit, breakdown occurs ⤷ Zener diodes are designed to operate in this region for voltage regulation 📊 Where Are These Curves Used? ⤷ Rectifier Circuits → Convert AC to DC ⤷ Voltage Regulators → Maintain steady voltage (Zener diodes) ⤷ LED Circuits → Light emission for indicators & displays ⤷ High-Speed Switching → Schottky diodes for fast response 💡 Choosing the right diode requires understanding its I-V curve! Engineers use this data to optimize circuit performance and efficiency. ➡ What’s your go-to diode for circuit design? Let’s discuss in the comments! 💬 ♻️ Repost to share with your network if you find this helpful. 🔗 Follow Ashish Shorma Dipta for posts like this. #ElectricalEngineering #Diodes #PowerElectronics #Semiconductors #CircuitDesign

⚡ Why Transformers Don’t Work on DC? – The Core Concept Transformers are everywhere — from power grids to your mobile charger. But did you know they only work with AC and not DC? 🤔 🔍 The Basic Principle A transformer works on Faraday’s Law of Electromagnetic Induction: "A changing magnetic flux induces an EMF (voltage) in a coil." In AC → Current keeps changing direction → Magnetic flux keeps varying → Induced EMF is generated in the secondary coil → Power transfer happens. In DC → Current is constant → Magnetic flux is constant → No change = No induced EMF. That’s why no voltage transformation happens in DC. ⚠️ What If We Apply DC to a Transformer? Applying DC to a transformer is a critical mistake and a safety hazard! 🚨 The primary winding has very low resistance. With AC, the winding's high inductive reactance limits the current, but with DC, that reactance is zero. This causes a massive, uncontrolled current to rush through the winding. This huge current flow leads to excessive heating 🔥 → winding damage → transformer failure. It's essentially a short-circuit, and the transformer will fail, often spectacularly. This is why standards like IEC 60076 and IEEE C57 strictly classify transformers for AC use only. 💡 Then How Do We Handle DC? For DC voltage conversion → we use DC-DC Converters (choppers, buck/boost circuits). These clever devices use power electronics to "chop up" the DC voltage, creating a pulsed signal that can be stepped up or down. For long-distance DC transmission (HVDC) → converters change AC ↔ DC using sophisticated power electronics. #Transformer #AC #DC #supply #working #electrical #learn #knowledge #network #core #concept #principle #working #voltage #commissioning #testing #engineering #design #Hvdc #magnetic #flux

Did you know that a tiny component is crucial for managing the massive electrical currents powering our world? In the vast landscape of electronics, DC shunts play an indispensable role, often working behind the scenes to ensure safety, accuracy, and efficiency. But what exactly are they, and why are they so important? A DC shunt is essentially a very low-resistance resistor designed to carry large direct currents (DC). Its primary function is to create a measurable voltage drop proportional to the current flowing through it. According to various electronics resources, this voltage drop then allows a measuring instrument, like an ammeter or a multimeter, to accurately determine very high currents without having the full current flow directly through the instrument itself, which could damage it or provide inaccurate readings. Here's why they are so vital across various applications: 1. Accurate Current Measurement: They enable the safe and precise measurement of currents far beyond what standard meters can handle, from industrial machinery to automotive systems. 2. Circuit Protection: By providing a known point for current sensing, shunts can be integrated into overcurrent protection circuits, safeguarding valuable equipment from damage. 3. Battery Management Systems (BMS): In electric vehicles, solar power setups, and uninterruptible power supplies (UPS), DC shunts are critical for monitoring charge and discharge currents, optimizing battery life and performance. 4. Power Supply Monitoring: They are essential in power supplies to ensure stable and controlled current output, vital for sensitive electronic devices. 5. Efficiency & Safety: Accurate current monitoring contributes to greater system efficiency by preventing overload and ensuring components operate within their specified limits, enhancing overall safety. From large industrial power systems to the compact electronics in our everyday devices, DC shunts are fundamental components that quietly ensure our electrical world runs smoothly and safely. What other overlooked components do you think deserve more recognition in the electronics world? Share your thoughts below! #Electronics #ElectricalEngineering #DCSshunt #CircuitDesign #PowerSystems #TechExplained #Innovation #EngineeringBasics

Basics of Electronics Voltage ⚡ – The potential difference that drives electric charges. Current 🔄 – The actual flow of electrons through a conductor. Power 💡 – The rate at which electrical energy is consumed or transferred. Resistor – Opposes the flow of current and controls the voltage in a circuit. Variable Resistor 🎚️ – Adjusts resistance manually, often used for controlling brightness or volume. Thermistor 🌡️ – A resistor that changes its resistance with temperature. Diode ➡️🚫 – Allows current to flow only in one direction, acting as a one-way gate. Transistor 🔀 – A tiny switch or amplifier that forms the heart of modern electronics. Inductor 🌀 – Stores energy in a magnetic field when current flows through it. Capacitor – Stores electrical energy in an electric field and releases it when required. Transformer 🔄 – Transfers electrical energy between circuits, stepping voltage up or down. Switch 🔘 – A simple device used to open or close an electrical circuit. #Electronics #LearningJourney #Engineering #Basics

𝙎𝙩𝙚𝙥-𝙐𝙥 𝙫𝙨 𝙎𝙩𝙚𝙥-𝘿𝙤𝙬𝙣 𝙏𝙧𝙖𝙣𝙨𝙛𝙤𝙧𝙢𝙚𝙧𝙨 – 𝙋𝙤𝙬𝙚𝙧 𝘽𝙚𝙝𝙞𝙣𝙙 𝙩𝙝𝙚 𝙂𝙧𝙞𝙙 ⚡ A transformer is one of the most vital inventions in electrical engineering. It doesn’t generate power – instead, it transfers and transforms energy efficiently from one voltage level to another using the principle of electromagnetic induction. 🔹 Step-Down Transformer Turns Ratio: Primary coil > Secondary coil Function: Reduces high voltage → low voltage Applications: Power adapters for electronics Distribution of electricity to homes & offices Low-voltage devices & control circuits 🔹 Step-Up Transformer Turns Ratio: Secondary coil > Primary coil Function: Increases low voltage → high voltage Applications: Power stations to transmit electricity over long distances X-ray machines in medical imaging Microwave ovens & industrial equipment This simple ratio rule decides whether we safely boost voltage for efficiency or reduce voltage for usability. 🌍 Transformers silently power our daily lives – from charging your phone 🔋 to lighting up entire cities 🏙️. (𝑳𝒊𝒌𝒆 & 𝑭𝒐𝒍𝒍𝒐𝒘 𝑷𝒍𝒆𝒂𝒔𝒆) #ElectricalEngineering #PowerSystems #StepUpTransformer #StepDownTransformer #EngineeringExplained #EnergyEfficiency #SmartGrid #CleanEnergy #ElectricalDesign #EngineeringStudents #RenewableEnergy #SustainablePower #FutureOfEnergy #PowerDistribution #HVACSystems #ElectronicsEngineering

⚡ Active or Passive Component: Do You Think You Know the Difference? In this 2nd post of my series on PID control in electronics, I propose to look at this distinction from a much more practical angle. We all learn that: • 🔹 A passive component consumes energy (resistor, lamp, capacitor…). • 🔹 An active component uses a power supply to amplify or generate a signal (op-amp, transistor…). Simple, right ? Well… not really. 👉 So how can a passive circuit perform the same function as an active one, even though their nature is completely different? 🤔 When we apply this difference to an electronic PID, the impact is immediate: • ⚙️ Passive → simple, cost-effective… but inevitable losses. • ⚙️ Active → amplification, better precision… but watch out for saturation! ❗ Before designing a PID, don’t forget to: 1️⃣ Study the system stability (open-loop and closed-loop) 2️⃣ Calculate the P, I, and D coefficients (tuning) 3️⃣ Then build the circuit. 🎁 In this post, I share with you a practical document that includes: • Simple & beginner-friendly guide to designing P action in electronic. • LTspice simulations to visualize the electronic parameters. • Falstad demos to test passive vs. active in real time. 💬 And you? Do you know how to reduce voltage drop in a purely passive circuit (at least for small loads) 🤔❓ 📌 Additional resources: 👉 Part 1 - Intro to PID controller : https://lnkd.in/enD9aMhq 👉 Falstad Demo (Passive Implementation) : https://lnkd.in/eGewaKQY 👉 Falstad Demo (Active Implementation) : https://lnkd.in/eJyndKS6 #Electronics #Automation #Engineering #PID #Controller #ControlSystems #EmbeddedSystems #LTspice #Falstad

Do You Know What a Capacitor Really Stores? --- A capacitor is one of the most important components in electrical and electronic circuits. Many people confuse its function with storing current, voltage, or power, but the truth is: 👉 A capacitor stores electrical charge (Q). 👉 This charge is held in the electric field between its two plates. 👉 The amount of charge stored depends on its capacitance (C) and the voltage (V) across it, given by the formula: Q = C × V 💡 Applications: Used in power factor correction. Provides starting torque in motors. Smoothens voltage fluctuations in power supplies. Essential in filters and signal processing. So, the correct answer is: A capacitor stores Charge. ⚡ --- #ElectricalEngineering #Capacitor #Electronics #EngineeringFacts #PowerSystems #Learning #ElectricalDesign #EnergyStorage

DC vs AC & Capacitor Concept) "Understanding the behavior of a capacitor in DC vs AC is fundamental in electrical engineering. 🔹 For DC, frequency (f) = 0 → Capacitive reactance = ∞ → Current is blocked. 🔹 For AC, frequency (f ≠ 0) → Capacitive reactance is finite → Current can flow. 👉 That’s why capacitors are widely used in AC circuits, filters, and power supplies. #ElectricalEngineering #Capacitor #AC #DC #Learning"

𝐂𝐨𝐦𝐩𝐫𝐞𝐡𝐞𝐧𝐬𝐢𝐯𝐞 𝐆𝐮𝐢𝐝𝐞𝐥𝐢𝐧𝐞𝐬 𝐟𝐨𝐫 𝐃𝐞𝐬𝐢𝐠𝐧, 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥𝐬, 𝐚𝐧𝐝 𝐂𝐨𝐦𝐩𝐨𝐧𝐞𝐧𝐭𝐬 𝐢𝐧 𝐇𝐢𝐠𝐡-𝐏𝐞𝐫𝐟𝐨𝐫𝐦𝐚𝐧𝐜𝐞 𝐏𝐨𝐰𝐞𝐫 𝐄𝐥𝐞𝐜𝐭𝐫𝐨𝐧𝐢𝐜𝐬 𝐏𝐂𝐁𝐬✨ Ever wondered what powers EVs and renewable energy? It's high-performance power electronics PCBs! ⚡️ These aren't your typical circuit boards. They're built to handle high voltage and heat, which is critical for reliability and safety. Why it matters: ◾ End-to-end design for robust performance. ◾ EMI and thermal management to prevent failures. ◾ Smart material choices for durability. ◾ Regulatory compliance for safety. Learn More 👉 : https://lnkd.in/g3MXz_NX #PowerElectronics #PCBDESIGN #PCBCart #PCBKnowledge