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Working principle of the circuit: DTMF decoding, the receiving circuit uses the DTMF decoding integrated circuit MT8870. When JKa and JKb in the circuit interface are closed, the DTMF signal sent ...[Details]
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Last month, Xiaomi demonstrated its Super Charge Turbo 100W super-fast charging technology, which can fully charge a 4000mAh battery phone (when the phone is turned on) in about 17 minutes. On the ...[Details]
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The delay in the release of iPhone 12 has concerned many people. According to reports, the latest news says that Apple has decided to launch the iPhone 12 series models in October. In term...[Details]
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Recently, a diver salvaged an iPhone 11 from the bottom of a lake in British Columbia. The phone survived underwater for nearly 6 months. Chilliwack freediver Clayton Helkenberg, who with his wife ...[Details]
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With the explosive growth of new energy vehicles and residential electrical equipment, the pressure on urban power grids is increasing day by day, which has an adverse impact on the charging effici...[Details]
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1. According to the definition of IEC, a backup UPS is a device that supplies power to the load from the mains when the mains is normal, and when the mains fails, the battery pack provides energy and ...[Details]
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1~99 seconds countdown digital tube display C program + Proteus simulation file. The program is optimized, and the internal timer of 51 single-chip microcomputer is used to realize the countdown with...[Details]
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1. Introduction
The wire sensor is an indispensable broken wire detection device in chemical fiber drafting equipment. Most traditional wire sensors adopt charge induction type, which has high det...[Details]
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1 Introduction
With the rapid development and maturity of power electronics technology, the number of large-scale power electronic devices in power systems is increasing. While improving t...[Details]
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Analog Devices is accelerating production of its medical technologies to help in the fight against COVID-19. This includes critical measurement and control technologies used in medical devices essent...[Details]
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The coating thickness gauge is also called the coating thickness gauge. The principle and application are as follows: 1. Principle Principle of magnetic thickness measurement: When the probe contacts...[Details]
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Circuit to drive 5 to 8 3W LED lamps in series using 12V DC/12V AC power supply
QR111, PAR30 and PAR38
Introduction:
• This circuit uses 12V DC/12V AC power supply to dr...[Details]
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OTA is becoming a term that people are more and more likely to come into contact with in their daily lives. What is OTA? Behind these three letters is the abbreviation (Contents) Over The Air, which ...[Details]
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Last September, NVIDIA announced that it would spend $40 billion to acquire ARM. At that time, they were ambitious and hoped to expand their power in the data center market by acquiring ARM. However,...[Details]
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NVIC, Chinese name Nested Interrupt Vector Controller, is a unique integrated unit inside the Cortex-M3 series controller, which is closely integrated with the CPU, reduces interrupt latency a...[Details]
Power technology
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