Some ADs are written as 14 bits, some are written as 12 bits, 8 bits, etc., but the ICL7135 is written as 4 and a half bits. What does it mean? Haha, I just figured it out. According to this self-depr...
P0 8 bits are ABCDEFG DP P3 is digital tube P1 is 4*4 keyboard P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 P1.0~P1.3 are connected to the rows of the keyboard P1.4~P1.7 are connected to the columns of the...
When I installed CCS4.1.2 (the emulator I had supported up to 4.1.2, and I used ccs6.0 at first, as I was not used to 3.3), I followed Yanxu's development manual to install and crack it, and configure...
I want to extract the data of an IImage or IBitmapImage object into an IStream or pbuf, but I don't know how to do it. If anyone has done this before, please give me some advice. Thanks in advance!...
Digital control and drive technology of synchronous rectifier in isolated switching power supply Abstract: This paper describes a method for digitally controlling, and especially properly shutting dow...
[size=4] I finished the display two days ago, and today I will continue to work on the key functions on the board. Due to limited resources, I only use KEY7 and KEY8. Pressing KEY7 once will display p...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
introduction
For the voltage regulator modules (VRMs) that power the latest computer central processing units (CPUs), power supply designers have historically used multiphase interleaved b...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
1 Introduction
Water resources are the basic conditions for human survival and the lifeline of economic development. The reality shows that due to the global shortage of water resources and th...[Details]
General LED lighting has a current limiting resistor in the driving circuit, and the power consumed by the resistor has nothing to do with the LED light emission. In order to improve efficiency, a...[Details]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
Introduction
Nowadays, people pay more and more attention to the security alarm system, and people have higher and higher requirements for the functions and performance of the alarm. This paper prop...[Details]
Introduction
As the country increases its efforts to control the atmospheric environment, motorcycle emission regulations will become stricter year by year, and motorcycles that do not meet the...[Details]
Car lights, whether headlights, fog lights or tail lights, play an important role in driving safety. However, the material of the car lights determines that the probability of damage in a collision...[Details]
summary
This article will briefly analyze the success and shortcomings of high-frequency DC-DC switching power supplies in the process of miniaturization (the second basic goal), and propose m...[Details]
Power supply is often the most easily overlooked link in the circuit design process. In fact, as an excellent design, power supply design should be very important, which greatly affects the perfor...[Details]
1 Introduction
At present, people have higher and higher requirements for the quality of life. When people are busy with work, soymilk machine is a new type of household beverage machine. It uses so...[Details]