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
In the power-off module, it may be required for the register to latch the data before shutdown or to restore the latched data after the power is turned on, which requires a special unit called the Retention Register. The retention register has two sets of registers: the Main Register and the shadow register, where the … Read more
1. Problem: 1. How to maximize available power for fast and efficient battery charging? 2. How to maximize power output while preventing power supply failure? 2. Definition and Understanding of DPM: Dynamic Power Management (DPM) is a power management mechanism that allows dynamic management of power while the system is running. This is in contrast … Read more