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Low-end op amp JRC4558. This op amp is the most used in low-end machines. Now it is considered super bad because its sound is too bright and has strong burrs, so it is the worst op amp compared to oth...[Details]
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On January 22, Apple concept stocks suffered a setback as a whole, with many stocks falling. The Apple concept sector fell as much as 1.39%, among which Lens Technology fell more than 13% during the ...[Details]
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1. Overview
The DC resistance tester, with a high-speed microcontroller as the core, adopts high-frequency modulation high-power power supply, high-speed A/D converter and programmable curren...[Details]
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Industry analysis firm Counterpoint released a global smartphone market report for the third quarter of 2021, pointing out that Xiaomi's shipments in the third quarter fell 4.5% and 15.4% year-on-yea...[Details]
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Roads are the main route for people to travel, but they are also extremely dangerous places. Despite the increasing safety and intelligence of cars, the number of traffic accident deaths in the Uni...[Details]
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There is no ISP function in another set of programs. To realize the update function of the program, you need to understand the IAP call of the chip, which is also introduced in the chip data. Then it...[Details]
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Objective
1. Create a library file libGetMax.a, which contains an external function GetMax. The function GetMax is used to determine the maximum value of two input parameters (int type) and re...[Details]
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Control requirements:
Press SB1 and the motor rotates forward.
Press SB2 and the motor will reverse.
Press SB3 to stop the motor.
As the most basic circuit, the forward an...[Details]
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Industry-leading TEMPO evaluation service High segmentation capability, high performance chip fuses Products designed for OEM designers and engineers Samtec connectors Complete signal source New prod...[Details]
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Many applications require analysis of collected data. For example, an engineer may need to monitor the temperature of a thermostat to verify that the PCB is operating within a predetermined range. ...[Details]
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The multimeter consists of three main parts: the meter head, the measuring circuit and the conversion switch. (1) Header: It is a highly sensitive magnetoelectric DC ammeter. The main performance ind...[Details]
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1 Common overcurrent protection circuits for switching power supplies
1.1 Current detection using current sensor
The working principle of the overcurrent detection sensor is shown in Figu...[Details]
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Imagine if your laptop or mobile phone, which is out of power, could be fully charged in 1 minute, and your electric car could be fully charged in 10 minutes. Researchers at the University of Color...[Details]
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Semi-autonomous driving features are still missing a critical trust factor, while automated safety features are gaining traction and acceptance. Car buyers understand and expect advanced driver ass...[Details]
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1. First, choose a flowmeter with corrosion resistance . 1) Instrument selection for general acidic media. Oval gear flowmeters made of acid-resistant steel, such as vortex flowmeter sensors and turb...[Details]