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Zener voltage detector with multimeter indication
Function of the circuit
Ordinary Zener diodes have different base voltages and temperature coefficients, resulting in large errors. In practic...[Details]
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1. Turn off the I (interrupt) and F (fast interrupt) bits in the cpsr register;
2. Set the interrupt mask register.
For 2440:
This is the interrupt processing process. When the...[Details]
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1. LED History
50 years ago, people already knew the basic knowledge that semiconductor materials can generate light. In 1962, Nick Holonyak Jr. of General Electric developed the first practic...[Details]
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China Energy Storage Network:
The technical advantages of surface acoustic wave hydrogen sensors lie in their rapid response and high sensitivity. Surface acoustic wave technology itself ex...[Details]
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Testing the Printer
1. Initialize the printer
① Initialize the printer. The printer initialization occurs inside the printer and is automatically performed when the power...[Details]
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Recently, Lattice announced the fourth product of the Nexus platform, CertusPro-NX. Lattice has been developing general-purpose FPGAs on the Nexus platform for 18 months. In 2019, when Lattice anno...[Details]
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Phison, a NAND Flash controller chip manufacturer, announced its operating results for April 2019, with consolidated revenue of NT$3.084 billion (same unit below), a monthly decrease of 5.79% and an ...[Details]
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Realization of Phase-locked Frequency Multiplication Circuit in Active Power Filter
Active Power Filter (APF) is a power electronic device that dynamically suppresses harmonics and compens...[Details]
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Nordic Powers Smart Plug to Provide Remote Energy Management for Appliances Using Cellular IoT and Bluetooth Low Energy
MOKO Smart MK117NB smart plug uses Nordic nRF52833 and nRF9160...[Details]
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Battery technology itself may not be advancing as fast as we would like, but technologies such as immersion cooling are making existing methods more efficient, according to Techspot. A video recently...[Details]
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Fast recovery diode (FRD for short) is a semiconductor diode with good switching characteristics and short reverse recovery time. It is mainly used in electronic circuits such as switching power su...[Details]
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On March 17, Li Yangxing, Vice President of R&D of Sunwanda Power, shared Sunwanda Power’s world-leading flash charging battery technology and integrated optical storage, charging and inspection ecol...[Details]
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S3C2440 has 5 16-bit timers. Timers 0, 1, 2 and 3 have PWM functions (so these 4 timers are also called PWM timers), all have an output pin, and timer 4 is an internal timer without an externa...[Details]
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The difference between the P0/P1/P2/P3 ports of the 51 MCU: The P0 port is used as the low 8-bit address bus and the 8-bit data bus. In this case, the P0 port cannot be used as I/O. It must first be ...[Details]
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2019 is coming to an end. For automobile manufacturers, this year's automobile technology presents a situation of "a battle of gods". Whether it is automobile safety or charging technology, there ...[Details]
Sensor
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