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1. Control circuit function of variable frequency speed regulation system
Taking the speed control by external potentiometer as an example, the control circuit is shown in Figure 1. Among them...[Details]
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In modern industrial production, the motor is the main driving device. At present, the KZ-D drive system that uses thyristor (i.e., silicon controlled rectifier) devices to power the motor has be...[Details]
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A unijunction transistor is also called a double base diode and its symbol and shape are shown in the figure. The method to determine the emitter E of a single junction transistor is to set the mul...[Details]
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1 STM32
microcontroller
Introduction
The STM32 series microcontroller is a highly integrated microcontroller based on the Cortex-M3 core from ST. It sets a new benchmark in terms ...[Details]
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Specific implementation functions: 1. Press the emergency alarm button, the emergency alarm light flashes and the buzzer sounds; 2. Press the arm button, the arm indicator light starts to flash f...[Details]
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Abstract: Where are the advantages of using electromagnetic flowmeters? According to the survey, based on the current market situation, electromagnetic flowmeters are gradually becoming the mainstrea...[Details]
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In recent years, household appliances, mobile phones and various handheld multimedia devices have become the mainstream of the mainland's 3C industry. With the rapid development of technology, el...[Details]
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Preface
At present, SOC technology has become the main research direction in many application fields, such as processors, mobile phones, modems and other products. This type of SOC chip integr...[Details]
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Function: Compare the values in two bytes, if they are not equal, transfer. CINE A,#data,rel CJNE A, direct, rel CJNE @Ri, #data,rel CJNE Rn,#data,rel This type of instruction has the dual func...[Details]
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According to my development board, there are 8 common cathode digital tubes, that is, only 8 digits can be displayed, 0-99999999. When the displayed number is less than 8 digits, the digital tubes th...[Details]
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According to foreign media reports, chipmaker Cirrus Logic intends to use its advantages in the field of tactile solutions in the smartphone market to enter the automotive market. The company believe...[Details]
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LED is a new type of semiconductor light source that is efficient and environmentally friendly. It has advantages that other light sources cannot match. It has a bright future in future automotive ...[Details]
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This article mainly discusses some of the main methods currently used in the automotive industry to deal with winter problems in the future and some solutions. In particular, it compares the two L...[Details]
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On August 12, Ningbo Junlian Intelligent Driving Technology Co., Ltd. (hereinafter referred to as "Junlian Intelligent Driving") and Black Sesame Intelligent Technology (Shanghai) Co., Ltd. (hereinaf...[Details]
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Moisture analysis methods can generally be divided into two categories, namely physical analysis and chemical analysis. Classical moisture analysis methods have been gradually replaced by various mo...[Details]
Analog electronics
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