How to use a Spectrum Analyzer: the key elements. Spectrum analyzers are probably the most important piece of test equipment for any RF testing, used in design, verification & validation, production test, maintenance and repair and many other RF associated investigations. Spectrum analyzers can be daunting test instruments when they are first encountered, as their mode of operation may not be quite the ‘norm’ for many people. But with a little understanding they give a whole new view on RF signals, and hence the RF circuits. In this video, I detail what a spectrum analyzer is, what the controls are and how to use one. Check out the video now: youtu.be/WnKK11UEvVE #spectrumanalyzer #spectrumanalyser #RFtest #RFdesign #electronicsnotes #testmeasurement

Gallium Nitride GaN FETs Explained: do you really know what they are & how they work? Gallium nitride is a semiconductor material that is being used increasingly to provide improved performance especially in high speed and RF FETs. The very high electron mobility of gallium nitride, GaN enables the fabrication of semiconductor devices that have a low value of ON resistance combined with a very high switching frequency capability. These benefits mean that GaN FETs are being used in many new electronic circuit designs for everything from power systems, for electric vehicles and renewable energy applications to RF power amplifiers, other RF design circuits and the like. GaN FETs use the interface between two semiconductor materials to produce a very thin region known as the 2DEG to provide very high levels of electron mobility that result in GaN HEMTs or high electron mobility transistor being formed. GaN FETs are actually HEMTs although the HEMT term is rarely used. Often GaN transistor technology is used to fabricate monolithic microwave ICs, MMICs which provide high levels of performance at microwave frequencies. Check out the link in the comments for a fuller explanation. #GaN #GaNFET #GanFETs #electroniccomponents

ANENG A3008 Pen Digital Multimeter Review - what is it like. This DMM boasts a 6000 count solution and quite reasonable accuracy. It also has auto detect for AC and DC voltage and resistance . It also measures capacitance, continuity (buzzer), temperature and non-contact voltage detection. It’s basically a great little DmM for not a lot of money. Watch my video now: youtube.com/shorts/v9xtGZCnW…

When designing Phase Locked Loops, the filter is probably the most key element in the circuit. It defines elements like the loop stability, the bandwidth, capture rate, phase noise profile and much more. Its design is a balance between all these parameters and it is one of the aspects that makes phase locked loop design so interesting. Check out the full breakdown here: electronics-notes.com/articl… #phaselockedloop #PLL #RFdesign

Zero-loss X-capacitor discharge technology just got an upgrade. Reducing no-load standby power without adding design complexity is a constant challenge for power supply designers—especially when meeting strict standards like ErP Lot 6 or aiming for true ultralow standby consumption. Power Integrations has introduced CAPZero™-4, the 4th generation of their pioneering X-capacitor discharge IC family! By automatically disengaging the bleed resistors during normal operation and only connecting them when AC power is removed, CAPZero-4 consumes less than 1 mW (under 0.75 mW at 230 VAC). This frees up to 1000 mW of available standby power for the system load. Key Highlights for Engineers: 🔹 Ultralow Consumption: Enables zero-watt no-load operation for AC-DC converters. 🔹 Drop-in Compatible: Pin-to-pin and package compatible with CAPZero-3 for effortless design migration. 🔹 Extended Thermal Range: Rated from -40 °C to 125 °C for demanding industrial and outdoor applications. 🔹 Global Safety Compliance: Certified to IEC 60335, EN/IEC 62368-1, UL 62368-1, and GB 4943.1. 🔹 Broad Application:Supports X-capacitance from 100 nF up to 6 µF across home appliances, displays, adapters, and industrial power supplies. With over 1 billion CAPZero ICs shipped since 2010, this generation makes it even easier to meet stringent energy regulations while keeping BOM and layout changes to a minimum. #PowerElectronics #HardwareDesign #PowerSupply #EnergyEfficiency #Semiconductors #Engineering #ACDC

Multilayer ceramic capacitors, MLCCs are one of the most widely used components these days. Primarily in they are seen as surface mount components, but there are also leaded varieties. Find out more in my video: tiktok.com/@electronicsnotes… @ceramiccapacitors #capacitors #electronicsnotes

Check out my video explaining more: Schottky Diodes Unpacked: Low Voltage Drop, High Performance - youtu.be/JBmSv2kitWM

Is a Schottky diode the answer to your Power Efficiency & RF Sensitivity Circuit Problems? A Schottky Diode can be the answer to high-speed switching and many other electronics circuit design performance issues. But it does have some issues. If you’re designing a power supply or a high-frequency circuit, the "standard" diode might not always be your best option. Selecting the right electronic component is key. Choosing between a PN Junction and a Schottky Diode can be the difference between it performing well, or not working as you want. Here is the breakdown of the three "Big Dividers": 1. Forward Voltage (V_f) * Standard PN: Typically drops about 0.7V. It’s the reliable workhorse, but that voltage drop turns into heat. * Schottky: Uses a metal-semiconductor junction to achieve a much lower drop, usually 0.15V to 0.45V. * The Result: Higher efficiency and less wasted power. 2. Switching Speed & Recovery * Standard PN: These suffer from Reverse Recovery Time. When you switch them off, electrons have to "recombine," causing a brief lag. * Schottky: They are majority carrier devices. There is virtually no stored charge to dissipate, meaning they switch almost instantaneously. * The Result: Essential for high-speed switching and RF applications. 3. Reverse Leakage & Voltage * Standard PN: High "blocking" capability (can handle 1000V+) and very low leakage current. * Schottky: They are notoriously "leaky" at high temperatures and generally have lower breakdown voltages (usually capped around 100V or a little more for silicon Schottkys). * The Result: If you need to block high voltage reliably, stick with Silicon or use silicon carbide Schottky diodes. Where are they used? * Standard PN Junction: general rectification, high voltage applications, general purpose circuits Schottky Diode: power supplies, solar panel circuits, RF mixers, RF signal detectors, logic ICs Pro Tip: Always check your thermal overhead. A Schottky’s low forward voltage is great, but if your environment is already hot, that increased reverse leakage can rocket upwards. Where have you used either of these diodes? #diodes #Semiconductors #PowerElectronics #electroniccomponents #TechTips #electronicsnotes

Transistor Common Emitter Amplifier - the most versatile circuit? The transistor common emitter circuit configuration is used for transistor circuit design. But how useful really is it? In this video, I explain all about the common emitter amplifier: what it is, its advantages and see some circuit designs. The transistor common emitter amplifier is probably the most widely used transistor configuration. First of all, I explain what the Common Emitter Amplifier actually is: it's a circuit that uses a transistor, to amplify an input signal. The "common emitter" part refers to the fact that the emitter terminal is common to both the input and output circuits. Next I look into how it works: when a small input signal is applied to the base of the transistor, it causes a much larger current to flow through the collector to the emitter. This results in a significant amplification of the input signal. Here's a list of its chief characteristics: a) It has a high voltage gain making it ideal for various applications. b) It offers a moderate input impedance, allowing it to be driven by a variety of signal sources. c) It has a medium output impedance and this makes it suitable for driving many loads. Where is it used? 1) As general amplifiers for amplifying everything from audio signals, to almost anything. 2) In RF circuits for amplifying signals in communication systems in both transmitters and receivers 3) They can even be configured as oscillators by providing the right kind of feedback. The common emitter amplifier is a versatile and fundamental circuit in electronics. Its ability to amplify signals effectively makes it an essential component in numerous electronic devices. Check out my video now: youtu.be/A0sWlW1o0h0 #transistor #commonemitter #amplifier #circuitdesign #HardwareDesign #HardwareEngineering #electronicsnotes

And also check out my video: Inside the Reed Switch: How a Tiny Magnet Changes Everything youtu.be/uCYTTKwsM0g