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A pre-charge resistor is a circuit element used in new energy vehicles. It is a circuit composed of resistors, capacitors and relays. Its main function is to pre-charge the high-voltage battery of ...[Details]
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When
white LEDs
are operated at 100°C, their
luminous efficiency
only decreases by about 3%. The requirement for white
LEDs
to have "temperature stability" is to prevent the luminous e...[Details]
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0 Introduction
Cars are currently the main means of transportation for humans and a symbol of modern civilization. The annual sales of cars in the world reach more than 60 million, and the numb...[Details]
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This small amplifier uses a single power supply, 32V or more, my current voltage is 36.5V, 400MA. It can be Class A or Class A and B, just change the resistance value yourself.
After plugg...[Details]
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Automotive electronic control systems generally follow the workflow of perception → control → execution. The sensor, as a perception unit, obtains the working status of the system, the control unit...[Details]
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Today, Redmi officially announced that the Note 9 series will be released on November 26. Three models will be released at the same time, and are expected to include Note 9, Note 9 Pro and 4G version...[Details]
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0 Introduction
In recent years, with the rapid development of the national economy, especially the increasing scale of high-grade highway construction, the turnover of highway freight has incr...[Details]
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For a single-port circuit without independent source, which has two lead-out terminals, has no independent power supply inside and the current on the two terminals is the same, it is called a singl...[Details]
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South Korea's memory semiconductor industry accounts for more than 60% of the global market, but it lags far behind Japan in the field of system semiconductors. South Korean media analysis pointed ou...[Details]
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This paper introduces a specific method of designing a short-distance wireless data transmission system using a high-performance, low-power 32-bit microprocessor STM32F103 and a RF transceiver chip n...[Details]
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The biggest obstacle to the promotion of hydrogen fuel cell vehicles is the high price and rare production of platinum. This expensive metal is particularly important for the redox reaction ...[Details]
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UBOOT-2010-03 transplantation on S3C2440 Part 2 ------------ Hardware initialization
http://www.linuxidc.com/Linux/2011-11/46993p2.htm
Notes:2) The red part of the code segment below is the d...[Details]
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At present, most grid-connected inverters on the market use industrial frequency isolation type grid-connected inverters. Due to the disadvantages of industrial frequency transformers that make the...[Details]
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In most cases, the value between peaks is measured, or the value between a peak and a certain trough is measured. Under normal circumstances, when measuring AC voltage, the input "select" switch shou...[Details]
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1. Introduction
With the development of digital electronic technology, a new device is being widely used, that is CPLD (Complex Programmable Logic Device). In layman's terms, it is an IC that ...[Details]
GD32 MCU
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