MCU is 430F149, compile environment is IAR, main clock frequency is 800KHz, internal DCO. LED-P2.0, KEY1-P1.0, KEY2-P1.1. Tested and available.
/***********************************************Program ...
[i=s] This post was last edited by btty038 on 2018-12-14 16:34 [/i]Power "RF Microwave Load Resistance" Not an Attenuator Frequency DC~10GHz Share selection information and manufacturers...
Engineering Applications of Random Signal Analysis : https://training.eeworld.com.cn/course/4242Random signals, also known as uncertain signals, refer to signals that cannot be expressed by a definite...
【Abstract】 In order to design a small-sized, simple-structured, low-cost ultra-wideband high-low frequency nested antenna (high frequency: 1 427-2 690 MHz, low frequency 690-960 MHz), this paper first...
The answer uses current series negative feedback. The answer is compiled from the postgraduate entrance examination materials.
I have a few questions
1. The load is a 50Ω output resistor. Shouldn't vo...
When charging piles were included in the seven major projects of new infrastructure in 2020, people seemed to see that a trillion-yuan market was about to be tapped, and more than 26 provinces and ci...[Details]
Germany's AARONIA V6 real-time spectrum analyzer is developed using a new generation of real-time spectrum technology. With the launch of V6, Germany's AARONIA real-time spectrum analyzer products ha...[Details]
MMU, full name Memory Manage Unit, Chinese name - memory management unit.
Many years ago, when people were still using DOS or older operating systems, computer memory was very small, generally calcu...[Details]
According to Jiwei.com news, on March 31, Zhongying Electronics released its 2020 performance report, stating that the company achieved operating income of 1.012 billion yuan, a year-on-year increase...[Details]
Jiwei.com reported on November 18 that OPPO launched the OPPO CybeReal full-time spatial computing AR application yesterday, which integrates high-precision digital modeling, AI, cloud computing, gra...[Details]
1 Introduction: The STM32F4 advanced timers (TIM1 and TIM8) contain a 16-bit auto-reload counter driven by a programmable prescaler. Advanced timers can be used for a variety of purposes, includi...[Details]
Positive 12V to negative 12V circuit
This circuit uses the TPS5340 step-down chip.
Figure 1 shows a simplified buck-boost circuit and the switch voltage that appears across the inductor. The si...[Details]
China Energy Storage Network News:
"7613 circuit breaker is operating normally." On February 22, the operation and maintenance personnel of Ningxia ±800 kV Lingzhou Converter Station carrie...[Details]
To use a low-cost 32-bit processor, developers face two choices: processors based on the Cortex-M3 core or the ARM7TDMI core. How to make a choice? What are the selection criteria? This article mainl...[Details]
According to reports, Google said that more than a quarter of the appointment calls for the Duplex appointment function, which focuses on "artificial intelligence services," are made by humans. Whe...[Details]
1. Before measuring, it is necessary to cut off the power supply of the equipment and ground or short-circuit it to ensure personal and equipment safety and obtain accurate measurement results. 2. Pa...[Details]
The LED light bar can achieve 360-degree light source without adding lens, which makes people feel like returning to the traditional incandescent lamp. LED light bar has many application advantag...[Details]
According to the Economic Daily, the Sino-US trade war and the new coronavirus epidemic have dealt a double blow, accelerating the reshuffle of the two major mobile phone supply chains of Apple and S...[Details]
Recently, the world-renowned consulting firm Boston Consulting Group (BCG) released a report nominating the world's 50 most innovative companies. A total of five Chinese companies were selected for t...[Details]
Known as the "crown jewel of the manufacturing industry", its research and development, manufacturing and application are important indicators of a country's scientific and technological innovation...[Details]