The zero-crossing detection could be undesirably triggered by noise. For safety purposes, at the end of the half AC cycle, turn off all of the switches. This leaves a small dead zone that will prevent the input AC from short-circuiting. The transition from the AC positive cycle to the ...
Power supplies can be found in almost any circuit. From radio transceivers to microprocessors, FPGAs, and amplifiers, it’s a guarantee that a power supply block exists somewhere, which makes one a vital part of any analog or digital circuit. ...
A circuit breaker is an incredibly simple tool used to control the flow of power to a household or business. Construction Photography/Avalon/Getty Images The circuit breaker is an essential device in the modern world and one of the most important safety mechanisms in your home. Whenever electri...
Bandwidth of 1kHz to 2kHz is sufficient for most AC circuit power quality applications. For higher frequency applications connect directly to the NI 9246 or NI 9247 for up to 24kHz bandwidth or select higher frequency CTs that are more expensive. All of the modules listed in the table above...
DC to AC converters for cars are devices that allow a car to run on AC power. They are used to convert the DC power that is provided by the car’s battery into AC power that can be used to operate the car’s electrical components. How does a AC to DC converter work? Fig.1 A ...
DIY solutionsare relatively easy to create with a mount and a light ring. Aside from your video setup, lighting is also an important factor in your overall comfort and productivity in your office space. Natural light is best, particularly when your desk is facing the light source to help avo...
Theoretically, any switching topology can be used to achieve a high power factor but, in practice, the boost topology has become the most popular thanks to the advantages it offers. ● Primarily because the circuit requires the fewest...
Instantaneous power changes over time. To calculate the average power value, multiple instantaneous values are integrated over a certain time period and then divided by the time period. The resultant value shows the device power in watts (not volt-amperes) in the AC circuit with voltage V(t) ...
Answer to: Suppose a circuit in a power supply is not working, then as a good troubleshooter, how do you solve this problem systematically? Explain...
Analog Applications Journal Communications How to reduce current spikes at AC zero-crossing for totem-pole PFC By Bosheng Sun Systems Engineer, High Power Controller Solutions Introduction Power factor correction (PFC) is widely used in AC/DC power supplies with an input power of 75 watts or ...