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  • 2016-08-19 00:34:29
    The inductor (Inductor) is able to convert electrical energy into magnetic energy storage devices. The structure of the inductor is similar to that of the transformer, but only one winding. The inductor has a certain inductance, which only hinders the change of current. If the inductor is connected in a state with...
  • 2017-02-21 15:07:29
    The electrical signal is a voltage or current that changes over time. It can use its voltage or current amplitude and time as a function of the relationship between the expression can also be used to express the waveform intuitive. The following describes the sine wave voltage signal and square wave signal as an exa...
  • 2016-11-29 19:46:11
    HSDPA mobility: In HSDPA, the introduction of the HS-DSCH channel, the design mechanism is not soft-switching, that is, in the high-speed data transmission, while only one Serving Cell service. In the R5, the change of the HS-DSCH Serving Cell can only be realized through the physical chann...
  • 2017-03-16 18:37:52
    Senior mechanics with professional skills and keen observation, which has a strong ability to solve the problem. The technology is based on the wisdom of senior technicians, experience and professional skills in the computer to generate practical computing procedures. The senior mechanic to solve the problem is the ...
  • 2016-12-03 11:27:17
    Resistance to damage characteristicsResistor is the largest number of electrical equipment in the electronic components, resistors are generally the following characteristics of the damage:Short circuit That is, the resistance is zero, directly connected.2. Open circuit. That is, infinite resistance, the circuit ...
  • 2017-02-21 15:14:25
    Omron high-performance printed circuit board appearance inspection device, to improve the quality of electronic equipment to contribute In the home appliances, mobile phones and other electronic equipment, there are many places will be used to weld electronic components and circuit wiring with the "printed circuit bo...
  • 2016-11-27 20:29:16
    In the circuit diagram, a capacitor (fixed capacitor) is represented by the graphical symbol shown in Figure 1-26. The capacitor character is the letter "c". If there are multiple capacitors in the circuit diagram, use the letter "c" plus the number to be distinguished, for example: c1, c2, c3 ...... In the mor...
  • 2016-12-03 11:08:29
    Toshiba Satellite Pro C600 series featuresThe Satellite Pro C600 series is equipped with a new generation of Intel processing platforms, with strong dual-core power, with 2GB DDR3 memory, to achieve high-speed stable system operation and lower power consumption, easy to deal with heavy task handling needs...
  • 2016-12-10 09:28:15
    Rules for the Implementation of Safety Inspection of ResistorsIn order to achieve the safe use of resistors, we must know the details of the implementation of the resistor safety inspection.First, informationProduct specifications, safety key components or raw materials list (material name, model specifications...
  • 2016-12-13 09:37:53
    Commonly used resistance of the performance characteristicsCarbon membrane resistanceHigh stability, low noise, widely used. Resistance range: 1Ω-10MΩMetal film resistorSmall size, small noise, high stability, small temperature coefficient, high temperature, high precision, but the pulse load stability is poor...
  • 2016-11-30 15:14:48
    Holtek Multichannel C / R-F Microcontrollers HT45R36It is understood that, multi-channel C / R-F microcontroller HT45R36 is a ROM 2kx14, RAM is 120 bytes, I / O up to 9-port MCU. In addition, the HT45R36 provides 16 channel C / RF functions, two external interrupt pins that can be set ...
  • 2017-02-15 22:38:43
    1, the output voltage adjustment: the manufacture of switching power supply, the first test step is to adjust the output voltage to the specification range. After this step is completed, ensure that subsequent specifications are met.2, power regulation: power regulation rate is defined as the power supply in the input...
  • 2016-12-12 13:39:05
    What is the role of the resistor?The role of the resistor is as follows:[1] convert the current into voltage: when the current flows through the resistor, the resistor at both ends will have a resistance drop, so that the current in the circuit can be converted into voltage.[2] Partial voltage: When a voltage is to...
  • 2016-08-19 00:51:51
    The magnet can be induction to the space of all magnetic signals around within a certain range, continuous in each frequency resonance is generated at the top of the coil and variable capacitance and resonant frequency of the corresponding foreign frequency will be selected and amplifier with sound, deviate from the b...
  • 2016-11-29 13:37:53
    How about the Linear Technology LT3492The LT3492 is a Linear Technology 2.1MHz efficient DC / DC converter for LED driver products designed to operate as a 3-channel constant current LED driver. Linear Technology LT3492 main application areas used in LED drivers.The LT3492 detects the ou...
  • 2016-11-26 19:27:15
    1, the output voltage adjustment: the manufacture of switching power supply, the first test step is to adjust the output voltage to the specification range. After this step is completed to ensure compliance with the follow-up specifications.2, the power adjustment rate: power supply regulation is defined as the power ...
  • 2016-12-12 13:43:52
    Application Principle of VaristorVaristor is mainly based on zinc oxide as the main raw material, add a variety of small amounts of metal oxides, formed by sintering ceramic components. It is a transient voltage suppression function of the components can be used to replace the transient suppression diode, zener di...
  • 2016-12-10 09:26:00
    VT66 / 66A triode type music integrated circuitVT66 / 66A typical application circuit as shown:VT66 / 66A package with TO92, its shape and plastic 9013-type transistor resembles, and its own with a metal heat sink, there are three leads to feet, and the general use of the same transistor as convenient, it is...
  • 2017-01-13 21:24:27
    1.8.3 Digital integrated circuits There are many types of digital integrated circuit products. They constitute a variety of logic circuits, such as gate circuits, flip-flops, counters, registers, encoders, decoders and so on. In our computer, there are a large number of various functions of the digital integrated ...
  • 2016-11-27 20:29:47
    2. Fixed resistor selectionThere are many types of fixed resistors, and the choice of which material and structure of the resistor, the circuit should be based on the specific requirements of the application. (1) Nominal values of the selected resistors should be close to those calculated in the circuit design. Gen...
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