The application of push-pull circuits is very extensive, such as the push-pull mode output of microcontrollers, PWM controllers output, bridge driver circuits, etc. The English term for push-pull is: Push-Pull, which literally means push-pull. Therefore, push-pull circuits are also called push-pull type circuits. The essence of push-pull circuits is power amplification, which enhances the driving … Read more
7-segment displays are inexpensive and easy to drive, capable of showing numbers 0-9, characters A, b, C, d, E, F, P, q, L, etc. They are widely used in electronic products for simple data display. For example, in temperature controllers for temperature and setting parameter display, electronic clocks for time display, and elevators for floor … Read more
Previously, friends from the breadboard forum discussed many useful hardware design tools they commonly use. Here, I would like to share them with everyone. If you have any additions, feel free to post them in the community forum; rewards are available: https://mbb.eet-china.com/forum/topic/140129_1_1.html. Circuit PCB Design CircuitMaker: https://circuitmaker.com/ Software Introduction: A free PCB design tool supported … Read more
AND Gate ANTENNA Antenna BATTERY DC Power Supply BELL Bell, Clock BVC Coaxial Cable Connector BRIDGE 1 Rectifier Bridge (Diode) BRIDGE 2 Rectifier Bridge (IC) BUFFER Buffer BUZZER Buzzer CAP Capacitor CAPACITOR Capacitor CAPACITOR POL Polarized Capacitor CAPVAR Variable Capacitor CIRCUIT BREAKER Fuse COAX Coaxial Cable CON Connector CRYSTAL Crystal Oscillator DB Parallel Port DIODE … Read more
This example will explain how to DIY a remote-controlled car. The remote-controlled car can execute related actions based on commands from the remote control. The hardware system of the remote-controlled car mainly includes the main microcontroller minimum system circuit, indicator light circuit, motor drive circuit, power circuit, remote control mode display circuit, independent key circuit, … Read more
A New Round of Teardown ActivitiesStarts in August, including drones, handheld oscilloscopes、computers、robot vacuums、smart watches、solid state drives、portable speakers, with many prizes and benefits, welcome to participate! As electronic engineers, we are quite fortunate compared to other engineering disciplines. Electronic products are not only rapidly developing and expanding their uses and functions, but our testing equipment provides … Read more
Introduction to EMMC Circuits EMMC (Embedded Multi Media Card) is a standard specification for embedded storage primarily aimed at products like mobile phones or tablets, established by the MMC Association. EMMC integrates a controller within the package, providing a standard interface and managing flash memory.The schematic for the 8-bit data signal is shown in Figure … Read more
Today we analyze a classic microcontroller power supply circuit. The circuit schematic is shown below: ▲ Simplified Switch Circuit Before powering the circuit, the switch “TEST” is open, and the microcontroller is not powered through VCC. At this time, the base of T1 is grounded through R9 (100k), and is in the cutoff state. The … Read more
With the development of the times, people have gradually started to design various types of chips, one of which is the popular low-power chip design. These chips not only help extend the battery life of devices but also reduce the likelihood of overheating and improve system stability. If you want to design low-power chips, then … Read more
Introduction In recent years, the popularity of battery-powered electronic products has made power consumption an increasingly important issue for analog circuit designers. This article will introduce how to use low-power operational amplifiers for system design, also covering low-power operational amplifiers with low supply voltage capabilities and their applications, discussing how to correctly understand the specifications … Read more