The AC output frequency of a power inverter device is usually the same as standard power line frequency, 50 or 60 hertz. An ideal power inverter should generate accurate 230V AC 50 Hz or 110V AC 60 Hz power with sine wave waveform. A less ideal inverter typically generates square wave or “modified sinewave” waveform →
Christmas lights can be a beautiful sight to behold. They can decorate public spaces and homes. Stringing lights outside can be a real safety hazard if you’re not careful. For outdoors use the lights you need to have lights that are designed to be used outdoors. For outside use there are nowadays both consumer and →
An ideal power inverter will produce same kind of power that is available from mains outlet, which typically means sine waveform 60 Hz 11-120V AC or 50 Hz 220-240V AC. That kind of power source can power all mains powered devices as long as enough power is available. Where power inverter devices substitute for standard →
This is a continuation to my Power inverter designs post. The first post was about general details of inverters and square wave inverters. Because square wave inverters are not suitable for many applications. The next better inverter category is so called modified sine wave inverter. Modified sine wave inverters are less complicated than sine wave →
A power inverter, or inverter, is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The inverter does not produce any power; the power is provided by the DC source. This document is collection of information on power inverter technology and gives links to DIY circuits – both good →
Radiation is the emission or sending out of energy from any source. Generating, transmitting, distributing, and using electricity all expose people to ELF radiation. Power lines, household wiring, and any device that uses electricity can generate ELF radiation. How much electromagnetic radiation you are exposed to depends on the strength of the electromagnetic field, your →
Question seen at Facebook electronics discussion group: I have 12 V ,1A DC Adapter, I want to convert it output up to 3 volts DC Power Supply for a “Gas Geyser Ignition” Circuit. What will be do for it? Easier solution is to get a new transformer / power supply with 3V output. There are →
LINEAR POWER SUPPLY DESIGN ASSISTANT #1 at https://www.changpuak.ch/electronics/power_supply_design.php is a tool for designing and simulating linear power supply rectification and smoothing capacitors See the circuit diagram. Enter the design data and can see the output voltage ripple and current on circuit. You can try with different capacitor values, different loads and different transformers. This is →
I saw a request for circuit diagram in Facebook electronics group: Hello feds. Required surge protector circuit. Working on 220v. 50hz 10amps load. I first offered this reverse engineering of one commercial mains surge protector “Ahlstrom 23 368″. The manufacturee component codes of the exact components used. S20K250 is a varistor for 250V AC / →
I saw at Facebook a video 12 v Short Circuit Protection and same for 220 volts (https://www.facebook.com/108281974135756/posts/166052965025323/). It was advertised as a short circuit protection relay circuit that will turn off the power when output is short circuited. This seems to be a quite popular circuit idea, because I saw several very similar circuit designs →