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Open collector
The output structure is shown in Figure 1. The collector of the transistor on the right is not connected to anything, so it is called an open collector. The transistor on the left is u...[Details]
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1 Introduction
With the rapid development of science and technology, ultrasonic waves will be used more and more widely in rangefinders. However, at the current technical level, the rangefinde...[Details]
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The parameters of the soft starter mainly include start time, stop time, maximum start current, and initial start voltage.
1. Starting time (usually 0.5-60s) refers to the time required for th...[Details]
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1. Overview
With the progress of human civilization and the rapid development of electronic technology, video surveillance, as an extension of human vision, has been widely used in all walks of...[Details]
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The company uses an atmega128 microcontroller with an external RAM chip. The microcontroller can detect the circuit of the external RAM through the internal program of the microcontroller. For example...[Details]
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With a dimming range of 31 steps, existing LED drivers offer good dimming capabilities, providing smooth backlighting up or down effects for LCD displays. However, when the end application involves l...[Details]
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According to Jiwei.com, Qichacha shows that Huawei Technologies Co., Ltd. recently added "Hubble" trademark application information, the international classification is Class 35 advertising sales, th...[Details]
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The core of embedded systems is embedded microprocessors and embedded operating systems. The hardware core of early embedded systems was various types of 8-bit and 16-bit single-chip microcomputers; ...[Details]
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In response to China's punitive tariff measures, US President Trump announced today that he would increase tariffs by 5% on $550 billion worth of Chinese goods and ordered US companies to withdraw fr...[Details]
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As a new display manufacturing company strongly supported by the Japanese government, JOLED has always attracted much attention, and this time it has been challenged by Samsung again. According to ...[Details]
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Ports A, B, and K are general purpose I/O interfaces Port E integrates IRQ and XIRQ interrupt inputs Port T integrates 1 timing module Port S integrates 2 SCI modules and 1 SPI module Port M ...[Details]
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Dutch technology blog LetsGoDigital reported that Samsung submitted a patent application for a "foldable electronic device" in June 2020, which was officially disclosed by the World Intellectu...[Details]
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In production, it is often used to measure the voltage and current in the circuit. Connect the light-emitting diode, resistor and potentiometer to form the circuit shown in Figure 3-4. Rotate the pot...[Details]
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Recently, the well-known mobile phone review organization DXOMARK announced the camera scores of Apple iPhone 12 mini, with a photo score of 132 points, a zoom score of 41 points, a video recording s...[Details]
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Recently, Continental announced a strategic partnership with Nanochip at the China Technology Experience Day event it hosted. The two parties will jointly develop automotive pressure sensor chips.
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