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I wanted to make a perpetual calendar before. I searched many forums and finally found the following program for converting the solar calendar to the lunar calendar. It is relatively simple and can b...[Details]
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The following factors may affect the operation of ultrasonic sensors. Please analyze the specific reasons in detail. This article is for reference only.
1. Scope and size
The size of the obje...[Details]
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1 Series current stabilization circuit
The series circuit is shown in the figure, where U1 is the rectifier filter output voltage and RL is the load resistance.
This is a series compensation type...[Details]
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To overcome power limitations in mobile devices, the usual approach is to use heavier batteries. New technologies such as fuel cells and supercapacitors provide us with a new option.
The key...[Details]
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Battery powered transistor headphone amp
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There are three main types of infrared temperature measuring instruments: infrared thermal imagers, infrared thermal televisions, and infrared thermometers (spot thermometers, infrared thermometers).
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1. USB card package full process explanation Initialize USB peripherals at power on // For operation with and without battery, if there is no battery, it will be initialized after power-on; if ther...[Details]
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A stabilized voltage supply is an electronic device that can provide a stable AC power supply or DC power supply to a load. It includes two categories: AC stabilized voltage supply and DC stabilize...[Details]
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Background of the birth of mobile phone battery repair device:
Due to the development of contemporary society, almost everyone is using mobile phones. Mobile phones have become an indispensabl...[Details]
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The situation of solid-state LED lighting is getting brighter and brighter, and its application areas are expanding around the world, including indoor and outdoor lighting, automotive interiors, TVs a...[Details]
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The latest data from the Semiconductor Industry Association (SIA) of the United States shows that the global chip market size increased by 23% year-on-year in the first quarter of 2022, but the year-...[Details]
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Almost every peripheral is operated by reading and writing registers on the device. Peripheral registers are also called "I/O ports", which usually include three categories: control registers, status...[Details]
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1Hz: The current goes back and forth once in 1 second Crystal oscillator 11.0592MHz =11059200Hz Clock period 1/11059200 s (reciprocal of crystal oscillator) The machine cycle is 12/11059200 s (under ...[Details]
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1 Introduction
This charging power supply is for a scientific research project, which requires a charging capacitor of 3000uF, a voltage range of 4000V--14000V, a charging accuracy of AU=|30V...[Details]
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First, we must know the address of the external ROM, because the 8051 microcontroller uses a unified addressing system, no matter what kind of external device it is, it has an address. Here we expand...[Details]
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