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    The mainstream electronic locks on the market are designed based on passwords. The biggest drawback of password locks is that passwords can be easily stolen, guessed, or forgotten by others. With ...[Details]

;*************************************************************************** ; Photoelectric automatic track tracking vehicle.dt ;*********************************************************************...[Details]

　　LCR tester can accurately and stably measure various component parameters. It is mainly used to test inductance, capacitance and resistance. It has the characteristics of direct function and simple ...[Details]

PROTEUS simulation circuit diagram: Circuit diagram principle: Use 74LS138 decoder to control the cathode port of the dot matrix, and P2 port controls the anode port, which is also the font code in...[Details]

Typically, a power factor correction (PFC) pre-regulator boost converter is compensated with a low voltage loop (see Figure 2) to reduce the input current total harmonic distortion (THD). In most a...[Details]

Shanghai Yishi Intelligent Technology Co., Ltd. and Callisto (Beijing) Technology Co., Ltd. signed a "Strategic Cooperation Agreement". Based on their respective capabilities and advantages in...[Details]

According to foreign media reports, Yageo has agreed to acquire the US passive device manufacturer KEMET for US$1.8 billion in cash. Through this transaction, Yageo will expand its product portfolio....[Details]

On-board charger (OBC) refers to a charger that is fixedly installed on an electric vehicle and has the ability to safely and automatically fully charge the power battery. It is mainly used in elec...[Details]

Take the thermal standing wave test of a 100W (50dBm) amplifier as an example The coupling degree of the coupler is 20dB, the attenuator is 40dB, The parameter selection rule is DUT output power -...[Details]

Coreless motor service life The life of a coreless motor is generally between 15 and 20 years. The life of a coreless motor generally depends on the user's maintenance, the quality of the oper...[Details]

The LCD scrolling program in the previous section has about 160 lines. As the number of hardware modules increases and the amount of programs increases, we often have to write programs into multiple ...[Details]

hardware design The design is based on 51 single-chip microcomputer, ADC uses TI's ADC0808, automatic digital voltage measurement table, the display uses a 4-digit digital tube, the measurement range...[Details]

According to statistics, the annual capacity of single-chip microcomputers in my country has reached 100-300 million pieces, and it is growing at a rate of about 16% per year, but my country's share ...[Details]

      The OPPO Future Technology Conference 2020 (OPPO INNO DAY 2020) with the theme of "Leap to Good" was officially held in Shenzhen. OPPO first proposed "Technology for People, Good for the World"...[Details]

Recently, foreign media reported that Bosch, an auto parts manufacturer, has launched a new semiconductor technology. This technology can use microchips to cut off the power supply after an electric ...[Details]