I am Kevin Chen, I graduated from University of Electronic Science and Technology of China in 2000. I am an electrical and electronic engineer with 23 years of experience, in charge of writting content for ICRFQ. I am willing use my experiences to create reliable and necessary electronic information to help our readers. We welcome readers to engage with us on various topics related to electronics such as IC chips, capacitors, resistors, inductors, circuit breakers, diode, transistor, module, relay, opticalcoupler, connectors, PCBs, etc. Please feel free to share your thoughts and questions on these subjects with us. We look forward to hearing from you!
Image source Electrosmash The PT2399 is a digital delay IC that was developed by Princeton Technology Corporation. It is a monolithic integrated circuit that is used to provide delay effects in audio applications. The PT2399 is an IC which is built around a delay line that is made up of a series of capacitors and…
Image source: AAMPGlobal A 5 pin relay is an electrical component that is used to control a circuit by opening and closing it with the help of an electromagnet. It has five pins, usually numbered from 85 to 87 and 30. Pin 85 and 86 are the coil pins that are used to energize the…
Image source Amazon TMC2208 and TMC2209 are both stepper motor drivers produced by Trinamic Motion Control. They are designed to provide efficient and quiet motion control for 3D printers and other applications. Both drivers offer features such as microstep interpolation, stealthChop for silent operation, and stallGuard for sensorless homing. While these drivers have many similarities,…
Image source Sparkfun The SN74HC595N IC is an 8-bit shift register with an output latch. This means that it can store up to 8 bits of data and then output them in a sequential manner. The SN74HC595N is commonly used in applications such as LED displays, digital clocks, and other devices that require multiple outputs…
Image source components101 The LM339 Comparator is an integrated circuit device used in various electronic circuits to compare two voltage levels. It is a part of the LM339 family of devices, which includes other comparators such as the LM339A and LM339E. The LM339 is a single-supply voltage comparator, meaning that it can be powered by…
LC circuit image source Wiki An LC circuit, also known as a resonant circuit, is an electric circuit consisting of an inductor (L) and a capacitor (C). This type of circuit is used to store and release electrical energy and is commonly found in radios, televisions, and other electronic devices. The LC circuit has many…
Image source amazon The C battery is a cylindrically shaped battery with a nominal voltage of 1.5 volts. It is one of the most commonly used batteries in the world, powering a wide range of devices, from toys to medical devices. They are also known s the R14 batteries. Are you planning to buy C…
Image source Amazon Are you looking for an operational amplifier that has a low voltage and power consumption, then you should consider getting the LM324 op-amp. The LM324 op-amp is a quad-channel operational amplifier which means that it has four individual amplifiers in one package. This makes it perfect for applications such as filtering and…
Image source WikiHow How do I check an AC capacitor? This is a question that you are likely to ask yourself. Well, there are a few different ways to check an AC capacitor. And this is the primary goal of this article. We are going to discuss the various methods of testing an AC capacitor,…
Image source DIY Engineers The 2N3904 and 2N2222 are both general purpose NPN bipolar junction transistors used in a variety of electronic applications. Although the two transistors are both NPN, they have different characteristics and are suitable for different purposes. And before you decide to buy one, it will be wise to know their differences.…