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1 Accident Phenomenon
During the insulation test before commissioning, it was found that the insulation level of the C-phase knife switch of an outdoor disconnector GW1-12/2000A in a 10 kV system wa...[Details]
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The DC motor has a wide speed regulation range and smooth stepless speed regulation characteristics. The duty cycle of the PWM pulse signal determines the size of the average voltage output to the...[Details]
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1 Introduction
In current pulse power systems, high-voltage capacitors are usually charged by linear power supply resonance or constant current of traditional resonant high-frequency switching power...[Details]
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According to foreign media reports, when Nick Holonyak, the inventor of LED
(light-emitting diode),
presented his invention to General Electric executives more than 50 years ago,
he firm...[Details]
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1 Introduction
Foreign aviation static converters have been serialized. Single-phase static converters have 20 power levels from 50VA to 6KVA, and three-phase static converters have 11 power...[Details]
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Toshiba Launches New Series of Reusable eFuse ICs
- Official launch of the small high-voltage "TCKE9 series" -
Shanghai, China, July 18, 2024 -
Toshiba Electronic Device...[Details]
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At the Frankfurt Motor Show, Karlsruhe Institute of Technology (KIT) demonstrated a new modular battery technology concept through an electric bus, which can improve the efficiency of battery energy ...[Details]
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1 Network management system based on server and IE browser
The network management system based on server and IE browser mainly consists of three parts: one is the network device. Guangzhou Zhi...[Details]
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Most people who have repaired computer power supplies know that as long as the AC mains is connected, the auxiliary power supply of the computer will be working all the time. This long-term operati...[Details]
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Low-power lighting drivers often use simple linear regulators configured in constant-current mode (Figure 1a). Linear regulators have advantages such as simple design. However, their main disadvantag...[Details]
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1. Why can’t white LEDs be used at overvoltage or overcurrent?
Generally, the most commonly used 5mm white light LED has a normal working voltage of 3.0-3.5V and a normal working current of 20...[Details]
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Most PN junction diodes can be used as photodiodes. While not the best choice, they are usable. When the diode is reverse biased, it produces a small photovoltaic output as light levels incre...[Details]
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introduction
During the growth of crops, light conditions have an important impact on the growth rate, yield and quality of crops . At present, most of my country's facility agriculture st...[Details]
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Performance and cost are both achieved, and one chip simplifies isolated power supply design
——Naxin Micro Integrated Isolated Power Supply 3CH Digital Isolator NIRSP31
In t...[Details]
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Linear Regulator Topologies In recent years, with the development of semiconductor technology, the cost of surface mounted inductors, capacitors, and highly integrated power control chips has been c...[Details]