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Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
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1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
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1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
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Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
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Current sensing in automotive applications includes controlling the current through solenoids and injectors. For example, during diesel injection, we rapidly increase the current to the induction i...[Details]
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Button cells (also called button cells) are those batteries with equal or larger diameter and height. The current size range of alkaline button cells is specified as follows: diameter 4.8mm-11.4mm,...[Details]
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LED lighting
has become the focus of widespread attention for its high energy saving, long life and environmental protection. There are successful cases in the field of functional lighting in...[Details]
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Take a two-port network as an example, such as a single transmission line, there are four S parameters: S11, S12, S21, S22. For a reciprocal network, S12 = S21, for a symmetric network, S11 =...[Details]
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0 Introduction
Since its introduction in 1884, the Jacquard device of the Jacquard warp knitting machine has developed from mechanical to electromagnetic and now piezoelectric, namely the Piezo Jacq...[Details]
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introduction
As batteries become more popular as a power source, an equally strong need has emerged to maximize the useful life of the batteries. Cell imbalance, or the mismatch in the sta...[Details]
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Have you ever been in a situation where you're dying to make that last phone call, but you know that your phone's battery could die at any time during the call? When your battery's last joules are...[Details]
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This is a voltage regulation and timing dual-purpose controller with simple circuit, easy production and convenient use. Its indicators are: voltage regulation range 30-215V AC, timing 5-60 minutes...[Details]
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Abstract: Network monitoring technology has been continuously improved with the development of microelectronics technology, modern communication and network technology. Using network technology to...[Details]
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The main power supply and backup battery are connected to the load through a simple diode "OR" logic circuit. However, when the battery voltage exceeds the main power supply voltage, the diode "OR"...[Details]
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Abstract: Based on the hardware structure and function of the network-type power quality monitoring device, the process of transplanting the μC/OS-Ⅱ embedded real-time operating system to the LPC24...[Details]
NXP MCU
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