support@coowa.net
Custom Product RFQ Request Service Services Wanted Services Offered
Knowledges News Events Links
Hiring a Professional Jobs
CHAdeMO is the trade name of a quick charging method for battery electric vehicles delivering up to 62.5 kW by 500 V, 125 A direct current via a special electrical connector. A revised CHAdeMO 2.0 s...
In electronics and control system theory, loop gain is the sum of the gain, expressed as a ratio or in decibels, around a feedback loop. Feedback loops are widely used in electronics in amplifiers an...
A magnetic core is a piece of magnetic material with a high magnetic permeability used to confine and guide magnetic fields in electrical, electromechanical and magnetic devices such as electromagnet...
UL LLC is a global safety certification company headquartered in Northbrook, Illinois. It maintains offices in 46 countries. Established in 1894 as the Underwriters' Electrical Bureau (a bureau o...
The PMP21495 reference design from Texas Instruments is a 6.6kW, bi-directional, dual-active-bridge resonant converter design that accepts a 380Vdc to 600Vdc input and provides a 280Vdc to 450Vdc out...
Resonant conversion is a topic that is at least thirty years old and where much effort has been spent in research in universities and industry because of its attractive features: smooth waveforms...
A supercapacitor (SC) (also called a supercap, ultracapacitor or Goldcap ) is a high-capacity capacitor with capacitance values much higher than other capacitors (but lower voltage limits) that bridg...
This CUI article provides a good understanding of the differences between NEC Class 2 and IEC Class II power supplies. NEC Class 2 is about output power limiting to ensure no fire breaks out du...
This is a simple and short article introducing Spectral Leakage. https://www.gaussianwaves.com/2011/01/fft-and-spectral-leakage-2/
Unified Diagnostic Services (UDS) is a diagnostic communication protocol in the electronic control unit (ECU) environment within the automotive electronics, which is specified in the ISO 14229-1. ...
A Controller Area Network (CAN bus) is a robust vehicle bus standard designed to allow microcontrollers and devices to communicate with each others' applications without a host computer. It is a me...
We use electricity day in and day out; but have you wondered how it all works? Essentially, the electric current flows along a conductor in the form of free electrons that move from one atom to the...
A phase change material (PCM) is a substance which releases/absorbs sufficient energy at phase transition to provide useful heat/cooling. Generally the transition will be from one of the first two ...
BTU (British Thermal Unit) is a measure of energy defined by the amount of energy require to change 1 pound of water by 1 degree Fahrenheit. For our purposes we use BTU/hr as a measurement of work ...
Today, we’ll be looking at a topic that often confuses people who are new to cryptocurrency —Token vs Coin. Sometimes people use the term “coin” to refer to what other people call “toke...
Abstract: Modern DC-DC converters use PWM controllers with integrated MOSFETs to achieve the highest power density for DC-DC modules. Since the power MOSFETs are inside the PWM chip, they can signi...
