Questions tagged [zero-crossing]

Question 1

I want to turn on/off LED bulbs and AC fan from a microcontroller. No chopping control is required. I only needed isolation and low noise soft switch that's why I've chosen a zero-crossing opto-TRIAC ...

Question 2

So, when i was checking the BM1Z102Fj datasheet it mentioned its ACOUT Pin voltage range from 0-0.3V to +29. Now I am using a STM32G070RB which has highest +5V tolerant pin only not more than that. ...

Question 3

I want to design an electrical circuit to regulate power of IR heater. I want to be robust, immune to electrical noise, and ensures long-term stability and reliability under real-world operating ...

Question 4

I would like to detect zero crossing of mains for the synchronization of 2 devices. These devices run on DC via a "wall wart" power supply. Detecting zero crossing with a direct connection ...

Question 5

I am using an Arduino to control an incandescent light bulb using TRIAC. I have the following setup: AC Input - 20VAC @60Hz using a stepped down transformer. DC - Diode Rectifier. The output of the ...

Question 6

I am trying to detect zero crossings of a 50Hz sinusodial signal, with the ADC. My code is like this, with a small offset I am trying to detect zero crossings and than give a small pulse just to see ...

Question 7

I have the following circuit taken from Arts of Electronics. I am using it to detect zero-crossing of a 40V-RMS/50Hz input. I am connecting the output of the comparator LM 393 to a GPIO pin of Raspi ...

Question 8

I'm designing a flexible AC transmission system that utilises TSR.I'll need to use a voltage zero crossing and current zero crossing in my circuit to send to the microcontroller. I've being playing ...

Question 9

I have this zero crossing detection circuit, and it does detect the zero crossing. The problem is that the output signal is a bit sinusoidal than expected, and voltages around 2 V where it's neither ...

Question 10

I need to control the shutdown of a load that operates with a voltage of 25V and a maximum RMS current of about 90 mA. This load is working almost always and rarely needs to be turned off. For which, ...

Question 11

Beginner here. I am trying to make a "zero crossing" circuit with phase control. This is probably not the right name for the circuit. Basically, I have a sine wave (from the power outlet) at ...

Question 12

I have this idea to dim a light. The problem is that my EBS simulation software won't allow me to see the actual result of the dimming. The only way to test it out is to physically construct the ...

Question 13

General Information About the Project I am trying to design a zero-crossing detector circuit for convert the sinusoidal signal from an ultrasonic transducer to a square wave. Here is the image of ...

Question 14

I have a triac in a 60Hz 120V power line (as is often done for dimming) and want it to only switch on the power when the AC voltage is low (widely between -40V and +40V would even be fine). This is ...

Question 15

I need help designing a circuit that outputs Signal A high when AC sine wave is positive and Signal B high when the sine wave is negative. It's part of a larger project that cycles power in a ...

Stack Exchange Network

Questions tagged [zero-crossing]

How does zero crossing opto-TRIAC not cause self-triggering of main TRIAC?

How to connect the ACOUT pin of the BM1Z102FJ to a STM32G070RB MCU?

Triac with optotriac dimmer

What's a good method for detecting AC zero crossing with minimal mains connection

Phase Angle Firing Control of TRIAC

STM32F401RE ADC Sampling time is very low

why does this LM393 need too much voltage to go high

How to simulate a current zero crossing in LTspice

How to sharpen the rise or fall time of a sinusoidal signal

Using a solid state relay, NC type to control an AC load

Zero crossing circuit with phase control

Dimming light idea

BJT Zero-Crossing Detector for 40kHz Ultrasonic Signal - Distortion & Receiver Issues

Schematic of a simple zero-crossing triac switch

Circuit that outputs signal A when AC sine is positive and signal B when AC sine is negative

Hot Network Questions