Diodes Incorporated AP3928 Universal AC Step Down Power Switcher
https://www.electronics-lab.com/diodes-incorporated-ap3928-universal-ac-step-down-power-switcher/
Diodes Incorporated AP3928 Universal AC Step Down Power Switcher is intended for home appliances and IoT applications with a non-isolated buck solution. The AP3928 integrates a 700V high-performance MOSFET and coordinates with a single-winding inductor. This high-level integration results in fewer external components and allows a low bill of materials (BOM) cost solution. The Diodes […]
AC Voltage Zero Cross Detector
https://www.electronics-lab.com/ac-voltage-zero-cross-detector/
This project provides AC voltage zero-cross timing detection and a DC voltage after diode rectification with high accuracy. Possible applications for such circuits are AC motor controllers, AC lamp controllers, AC Dimmer Controllers, Home Appliances. The circuit outputs a zero-cross signal from 90 Vac to 264 Vac input. The project is based on BM1Z102FJ chip […]
Low Profile 2 Channel Solid State Relay for AC Loads
https://www.electronics-lab.com/low-profile-2-channel-solid-state-relay-for-ac-loads/
This project offers an extremely compact solution for interfacing 2 high voltage resistive or inductive loads. At a low profile, this is the most compact & versatile optically isolated 2 channel solid state relay system. The circuit consists of 2x Triacs and isolated Triac drivers. The circuit is compatible with TTL input signals and controls […]
Free Elektor Project: Inrush Current Limiter (Soft Starter) for AC and DC Loads
https://www.electronics-lab.com/free-elektor-project-inrush-current-limiter-soft-starter-for-ac-and-dc-loads/
Inrush current/Switch-ON surge is the maximal instantaneous input current drawn by an electrical device when first turned on. Inrush current is much higher than the load’s steady-state current and that’s the source of many problems such as fuse blowing up, load failure, load’s lifetime reduction, sparks at the switch contacts … etc. The figure below […]
Flash an LED from AC-mains power
https://www.electronics-lab.com/flash-an-led-from-ac-mains-power/
LED technology is opening the door to a variety of high-power-illumination applications. The circuit in Figure 1 can let you know when ac power is available. To drive a power LED from the ac line requires a converter or a similar arrangement. In this circuit, a passive dropper greatly simplifies the total design. You can […]
Voltage Sources
https://www.electronics-lab.com/article/voltage-sources/
Introduction In this tutorial, we present in detail the architecture, functioning, and use of an important electronic element known as the voltage source. We first present the base concept which is the ideal voltage source and an introduction to the alternators and batteries is given since they represent the most common types of AC/DC voltage […]
AC & DC 200W Electronic Load
https://www.electronics-lab.com/ac-dc-200w-electronic-load/
This Electronic Load for DC and AC has some remarkable Features: Input voltage up to 400V Load current up to 10A Power dissipation up to 200W Remote controllable via (isolated USB interface) Suitable for DC and AC 7-segment displays for VRMS and ARMS more information and source files: www.elektormagazine.com
AC Resistance and Impedance
https://www.electronics-lab.com/article/ac-resistance-impedance/
Introduction The electric resistance is a property that characterizes how a particular component creates an opposition to the flow of current when a voltage difference is applied to its terminals. In this tutorial, we will focus on the opposition that a resistor generates when an AC voltage is applied to it. In the very first […]
AC Waveform and AC Circuit Theory
https://www.electronics-lab.com/article/ac-waveform-and-ac-circuit-theory/
Introduction When talking about current or voltage, these signals can be fitted into two main categories : DC and AC. DC states for “Direct Current“, this definition regroup the signals that are constant in time : their amplitude and sign (+ or -) remain unchanged. AC states for “Alternating Current“, these signals are alternating between […]
3 Phase AC Motor Controller
https://www.electronics-lab.com/3-phase-ac-motor-controller/
This project made using MC3PHAC from NXP Semiconductor. The project generates 6 PWM signals for 3 Phase AC Motor controller. It’s very easy to make professional VFD combining with Intelligent Power Module (IPM) or 3 Phase IGBT/MOSFET with Gate driver. The board provides 6 PWM signals for the IPM or IGBT Inverter and also brake […]