This solution utilizes a XuanZhi SPD1179 SoC and seven YaoXin Micro’s AKG4N058GM-A domestically produced automotive-grade MOSFETs to achieve full domestic chip production. One of the MOSFETs is used for reverse polarity protection, while the remaining six are configured to form three half-bridges. The system block diagram and PCBA photos are shown below. ▲ Block Diagram … Read more
This circuit diagram describes a boost converter circuit used in back-end power systems, aimed at raising the input low voltage to the required output voltage. Below is a detailed explanation of each part and its function: 1. VBST_BE_IN (Input Voltage) Function : This is the input voltage of the boost converter. It typically comes from … Read more
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
Source: Chip Discussion Introduction: Since the birth of integrated circuit (chip) technology in 1958, it has a development history of 63 years. In today’s information society, chips are undoubtedly the most important foundational support. In recent years, core chip technology has become a tool for the United States to maintain technological hegemony and suppress other … Read more
Today, let’s briefly discuss IGBTs in power semiconductors, which is currently a very popular track in the semiconductor industry chain. Power semiconductors are a core part of the entire industry, positioned after semiconductor materials and equipment. A term often mentioned here is “power devices”; some people think these two are the same, but they are … Read more
Power semiconductors are the core of energy conversion and circuit control in electronic devices, primarily serving functions such as power conversion, power amplification, power switching, circuit protection, inversion (DC to AC), and rectification (AC to DC). With the national push for energy substitution and energy-saving renovations, there is an urgent need for high-quality and high-efficiency … Read more
Semiconductors are commonly used components in the electrical appliances we use in our daily lives. How much do you know about semiconductors? Today, we will start with the most basic semiconductor power devices to gain a comprehensive understanding of the “past and present” of semiconductors. Power Electronic Devices are also known as power semiconductor devices, … Read more
Before we explain semiconductor chips, we should first understand two points. First, what is a semiconductor? Second, what is a chip? Semiconductor A semiconductor (semiconductor) refers to a material with electrical conductivity between that of an insulator (insulator) and a conductor (conductor) at room temperature. Materials with poor conductivity, such as coal, artificial crystals, amber, … Read more
▲ The circuit to be analyzed in this article Many portable electronic devices with built-in lithium batteries, such as mobile phones, typically adopt the following power supply method: 1. When the USB power is not connected, it uses the built-in lithium battery for power. 2. When the USB power is connected, it switches to power … Read more
I2C is a common serial communication interface, which is available on most processors. The I2C interface is an open-drain structure, so pull-up resistors are needed in the design to drive the high level. As shown below: Rp is the pull-up resistor, and the dashed box contains the internal I2C controller structure of the chip (for … Read more