B45198P7157M509

Photos of what is suspected to be the "iPhone 13" screen film have been exposed again, and the reduction of the "bangs" has once again become a topic of discussion. Since the beginning of 2021, som...[Details]

How do we measure the water level in a boiling boiler? A water level gauge is also called a "liquid level gauge" or "liquid surface gauge". Because the water in the boiler vaporizes at high temperatu...[Details]

The microcontroller controls the switching power supply. There are several control methods for the power output alone. One is that the MCU outputs a voltage (via DA chip or PWM) which is used as th...[Details]

Whether adjusting a seat to the optimal position or enabling easy access to the trunk, body electronics systems use electric motors to increase comfort and convenience for the driver and passengers. ...[Details]

This paper discusses the IGBT gate drive characteristics, gate series resistance and its drive circuit, and proposes an effective method of slow gate voltage drop overcurrent protection and overvolta...[Details]

Experiment name: Fabrication and vibration characteristics test application of power amplifier based on two-dimensional elliptical ultrasonic vibrator Experimental purpose: To test and verify ...[Details]

In the design or fault detection process of sequential circuits, it is necessary to verify the state of the circuit. State verification is to use a pre-designed test sequence to stimulate the input...[Details]

Simulation diagram proteus7.8 and above Program compiler: keil 4/keil 5 Programming language: C language Design number: S0055 1. Main functions: Triangular wave signal generator based on 51 microco...[Details]

In embedded systems, there is a growing need to provide high-fidelity audio instead of buzzers for user feedback, including alarms and alerts. While beeps or chirps have worked well in the past, us...[Details]

Analysis of six common problems when using an oscilloscope Oscilloscopes are an indispensable measurement tool for engineers, but they will definitely encounter problems of one kind or another when...[Details]

Circuit Principle In Figure IC1-4069, Y1 and Y2 form an oscillator with a frequency of 76KHZ. After being isolated and shaped by Y3-Y6, they are sent to the two-group frequency modulation circuit c...[Details]

1) The biggest feature of PIC is that it does not simply pile up functions, but starts from reality, attaches importance to the performance and price ratio of products, and develops multiple models t...[Details]

Serial port data configuration void macUART4_Config(void) {     GPIO_InitTypeDef GPIO_InitStructure;   USART_InitTypeDef USART_InitStructure;     RCC_AHB1PeriphClockCmd(macUART4_RX_GPIO_CLK|macUA...[Details]

As shown in Figure A, it is a multivibrator circuit composed of CMOS NAND gates. It consists of two inverters, a resistor and a capacitor. Figure B is its waveform. In the figure, when waveform (1) j...[Details]

0 Introduction Groundwater in my country accounts for one-third of the total water resources, and the annual water supply accounts for nearly 20% of the total water supply, playing an impo...[Details]