Are audio amplifiers, Class A, Class B, Class C, Class AB, Class D, OTL, etc. circuits a type of DAC amplification? What are the similarities and differences with ordinary DAC analog voltage amplifica...
Wide-area wireless network operators are increasingly involved in mobile broadband access and rich multimedia services. These services pose great challenges to wireless networks. Operators need to mak...
1. Flash specificationsThe main chip used in this article is N32L436RBL7, and the flash size is 128k
The flash is divided into 64 pages, numbered 0-63, and each page is 2k.2. Precautions for flash ope...
In the EMC design of RS-485 ports, we need to focus on three factors: electrostatic discharge (ESD), electrical fast transients (EFT) and surge. The International Electrotechnical Commission (IEC) spe...
As shown in Figure 1, the input signal VIN is given by the DSP chip. In Figure 1, R3 and C1 as well as R2 and C3 form a two-order low-pass filter. What is the principle of this filtering? It is easy t...
When I used AD to export gerber today, it prompted "The Film is too small for this PCB"
Because I failed to import DXF files using AD before, I suspect that the DXF has actually been imported, but it ...
Dingqiao M40 has entered the Tianyi product library. The phone will be the MediaTek Dimensity 1000 Plus version of "Huawei Mate40". The 8+128GB version is priced at 4,599 yuan and the 8+256GB v...[Details]
At the beginning of 2021, Meizu, known as the "pioneer of domestic smartphones", officially announced its high-profile "entry" into the smart home field - launching the Lipro smart home brand, focusi...[Details]
According to a recent report by the American Physicists Organization website, Singaporean scientists placed a novel nanostructure (thousands of times smaller than a human hair) on the surface of a ...[Details]
1. Preparation for using the ground resistance tester ① Read the instruction manual of the ground resistance meter carefully and have a comprehensive understanding of the structure, performance a...[Details]
Abstract: Aiming at the requirements of variable frequency amplitude modulation of modern power supply, this paper proposes to use PIC16F873 to generate SPWM wave to control IR2136 to trigger IGBT...[Details]
Touchscreen displays
have taken over our daily lives. From smartphones and laptops to smart TVs and car navigation systems, touchscreen displays are improving the experience and functionality...[Details]
The use of power switches is complex and confusing to most electronic product designers, especially those who are not experts in power management. Power switches are increasingly being used by desi...[Details]
ARM instructions: what are adr adrl ldr mov? ADR is a pseudo instruction for reading addresses in a small range, which reads the address value based on the relative offset of PC into the target reg...[Details]
1. Introduction
At present, my country generally adopts the metering and charging method that users' metering instruments, namely water meters, electricity meters, gas meters, and heat meters ...[Details]
Abstract: The World Hard Technology Innovation Platform provides innovative and reliable supply chain solutions for hard technology companies, which not only doubles the efficiency of product innovat...[Details]
ABB has launched its new solar energy storage solution, REACT 2, with a capacity of 12kWh, increasing a household’s electricity self-sufficiency.
ABB's new REACT 2 inverter and ene...[Details]
At the recent AMD Greater China Partner Summit, AMD once again mentioned the launch of the third-generation Ryzen Threadripper processor in November this year, and the first announcement will be...[Details]
E4980AL precision LCR meter description: The E4980AL precision LCR meter sets the industry benchmark for basic LCR meters, achieving an ideal combination of measurement accuracy, speed and versatilit...[Details]
Dynamic Class A with Easy Adjustment
Bias Circuit
Class A amplifiers are highly praised by audiophiles for their mellow and sweet sound, but their low efficiency, large heat sink and high cost ma...[Details]
In our previous blog notes, we have explained how improving the efficiency of electric vehicle powertrains can increase their range (Note I) and how better software controlling inverters and electr...[Details]
Discrete Device
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