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With the rapid development of microelectronics technology, various electronic products are constantly emerging, and the trend toward portability and small size and light weight is developing. In order to use these electronic products more effectively, rechargeable batteries are rapidly developed. . Common rechargeable batteries include nickel-metal hydride batteries, nickel-cadmium batteries, lithium batteries, and polymer batteries. Among them, lithium batteries are widely used for their high...
In the previous article, everyone has seen pictures of integrated circuits, and there are many different shapes. The real part of these chips is the transistors integrated on the silicon. What we see is that it is packaged on the outside with a casing. Route the circuit pins on the silicon to the external connectors to facilitate connection of other devices. The package has the functions of mounting, fixing, sealing, protecting the chip and enhancing electric heating. The silicon wafer must be...
The integrated circuit regulator is suitable for 14V, 350-d500W external iron silicon rectifier generators (such as with JF2132N, JF2132A, JF213E generators used in Dongfeng E0109a cars). The internal circuit of this regulator is shown in the figure. The adjustment circuit works as follows: 1) After the ignition switch S is turned on, the battery voltage is applied to a voltage divider composed of resistors Ri, bogey, and R3. At this time, the potential at point A is lower than the reverse...
Integrated circuit overhaul is a huge project, because the integrated circuit has many pins and is very dense, which is very difficult to disassemble, and sometimes even damages the integrated circuit and the circuit board. The following several effective integrated circuit disassembly methods are available for your reference. 1. Multi-strand copper wire suction disassembly method It is to use a multi-strand copper core plastic wire to remove the plastic outer skin and use a multi-strand copper...
The research team led by Gu Zeming, a professor of physics and engineering at the University of Tokyo's Department of Optical Systems, announced that he has successfully integrated optical circuits that play an important role in the "quantum teleportaTIon" of light into silicon chips. It can be said that this has taken a big step toward the quantum computer that realizes the quantum gate method. Quantum teleportation is a method of remotely transmitting a state of a plurality of...
The testing technology of integrated circuits has developed with the rapid development of integrated circuit development and application. Integrated circuit testers have also evolved from initial testing of small scale integrated circuits to testing of scale, large scale and very large scale integrated circuits. The integrated circuit tester can be divided into: digital integrated circuit tester, memory tester, analog and mixed signal circuit tester, online test system and verification system....
In recent years, color PDP technology has continued to advance, and large wall-mounted TVs, HDTVs, and large display devices for multimedia displays using color PDPs are nearing completion. Since 1995, the world's major manufacturers have successively built lines to produce various types of color PDPs. These achievements are not only attributed to the successful development of the color PDP display itself and the establishment of production technology, but more importantly due to the...
Integrated circuit overhaul is a huge project, because the integrated circuit has many pins and is very dense, which is very difficult to disassemble, and sometimes even damages the integrated circuit and the circuit board. How to easily and effectively disassemble the integrated circuit board? This article summarizes several effective integrated circuit disassembly methods for your reference. Multi-strand copper wire disassembly method It is to use a multi-strand copper core plastic wire to...
Since the 1980s, digital signal processing algorithms and integrated circuits have developed rapidly. Although many types of signal processing have been converted from analog circuits to digital circuits, analog circuits are indispensable in a single chip. As a rookie in an analog circuit designer, talk about some of your own experiences in learning and working. Analog circuit design is more difficult than digital circuit design I have been in contact with analog integrated circuits for four...
This circuit is a highly integrated electrocardiogram (ECG) front end for battery-powered patient monitoring applications. Figure 1 shows a top-level block diagram of the physical connection of a typical 5-lead (four limb leads and one pre-thoracic lead) ECG measurement system that integrates breathing and pulse detection. This configuration is typically used for portable telemetry ECG measurements or minimum lead setup for line powered bedside instruments. When measured on the skin surface,...
The integrated circuit application circuit diagram function integrated circuit application circuit diagram has the following functions: 1 It expresses the circuit structure and component parameters of each pin of the integrated circuit, thus indicating the complete working condition of an integrated circuit. 2 In some integrated circuit application circuits, the internal circuit block diagram of the integrated circuit is drawn. At this time, it is quite convenient to analyze the integrated...
(1) Notes on using TTL integrated circuits The power supply voltage of the 1TTL integrated circuit cannot be higher than +5.5V. The power supply and the ground cannot be connected in reverse. Otherwise, the device will be damaged due to excessive current. The input terminals of the 2 circuit cannot be directly connected to the low internal resistance power supply higher than +5.5V and lower than -0.5V, because the low internal resistance power supply can supply a large current, causing the...
First, CMOS integrated circuits drive other devices 1. CMOS-TTL integrated circuit interface Since the low-level input current of TTL is 1.6mA, and the low-level output current of CMOS is only 1.5mA, an interface circuit is generally added. Here is an interface circuit that uses a single power supply. In FIG. 1, the function of the interface circuit is the CMOS integrated circuit buffer/level converter, which functions as a buffer drive or a logic level change, has a strong ability to sink...
Technical requirements for CMOS integrated circuits 1. CMOS integrated circuit input requirements The CMOS integrated circuit has a high input impedance, and its internal input terminal is connected with a diode protection circuit to prevent external interference, shock and electrostatic breakdown. When the input end of the CMOS integrated circuit is suspended, the input impedance is high, and it is susceptible to external noise interference, causing the circuit to malfunction. Destroy the...
De-soldering chip-type integrated circuits under amateur conditions is a difficult task. The author summarized a set of methods for desoldering and chip-mounting integrated circuits in the maintenance practice, and introduced them to everyone for reference. Disassembled chip integrated circuit It is too cumbersome, time-consuming and laborious to remove the chip integrated circuit by picking the pins. It is possible to damage the pad with a slight carelessness, which causes difficulties in...
MPS company integrated circuit naming method
Motorola company integrated circuit naming method
Substitution of integrated circuits The interior of an integrated circuit is basically all semiconductors, which concentrates tens of thousands of transistors into a small device. Because of this, there are many integrated circuits that can be replaced with each other. As long as they have the same function and the same working voltage, the voltage of each pin is the same. It is generally used interchangeably (for MCU and memory, internal is also required). The procedure is the same). This...
Method of disassembling an integrated circuit board Here are a few effective ways to disassemble integrated circuits: Dispensing method of suction tin:: Use the tin extractor to disassemble the integrated block. This is a commonly used professional method. The tool is a common suction and soldering electric soldering iron with a power of more than 35W. When disassembling the integrated block, just put the heated dual-purpose soldering iron tip on the pin of the integrated block to be...
Several ways to disassemble an integrated circuit In the circuit maintenance, it is often necessary to remove the integrated circuit from the printed circuit board. Since the integrated circuit pins are dense and dense, it is difficult to disassemble, and sometimes the integrated circuit and the circuit board are damaged. Here are a few examples of effective integrated circuit disassembly methods for your reference. The tin suction device disassembling method uses a soldering tin to disassemble...
1 Overview Frequency synthesis technology is a new technology in the development of modern radio technology, and it is also one of the key technologies in modern communication systems. It usually uses a crystal or a small number of crystals to form a standard frequency source, and then synthesizes various required frequencies. signal. These frequency signals have the same frequency stability and accuracy as standard frequency sources. A circuit constructed using this technique is referred to as...
On April 25, the State Council Information Office held a press conference on the development of the industrial and communications industry in the first quarter of 2018. Chen Yin, chief engineer and spokesperson of the Ministry of Industry and Information Technology, introduced the development of the industry and communications industry in the first quarter of 2018, and together with the Director of the Information and Communication Development Department of the Ministry of Industry and...
The TLE9266QX is a monolithic integrated circuit packaged in an exposed pad VQFN-48 (7mm & TImes; 7mm) power supply. The device is designed for a variety of CAN-LIN body applications and can act as a power supply for the microcontroller and as an interface to the CAN and LIN bus networks. To support these applications, the System Basis Chip (SBC) provides many key features such as a 5V Low Dropout Regulator (LDO) for microcontroller power supplies, sensor supply, 5V low dropout regulator...
Cypress's S6BP401A is a Power Management Integrated Circuit (PMIC) that includes four buck 2.1MHz DC/DC converters with built-in switching FETs, two low dropout (LDO) regulators and digital window watchdog timing The .VIN input voltage is 4.5V-5.5V, and the built-in switching FET has a current of up to 3A. It is mainly used in automotive applications, advanced driver assistance systems (ADAS), camera systems such as security cameras and industrial applications. This article introduces the...
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.