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  • 2016-11-29 19:45:08
    According to the technical distinction: from its working principle and the core components to distinguish between black and white power is also possible, black power is more through the electronic components, circuit boards, and white is more electrical energy through the motor will be converted to heat, Kinetic ener...
  • 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...
  • 2016-11-29 13:38:54
    Analysis of the Anti - high - frequency Interference Circuit of Safety CapacitorSafety capacitor is divided into X capacitor and Y capacitor, they are used for EMI / RFI suppression. EMI (Electro Magnetic Interference) for electromagnetic interference, RFI (Radio Frequency Interference) means...
  • 2017-02-21 15:13:48
    The VIA QuadCore processor combines four 64-bit, two-run "Isaiah" kernels, offering enhanced multitasking and superb multimedia performance, low-power budgets.The VIA QuadCore processor itself is 64-bit compatible and is equipped with additional performance features, 4MB L2 cache, including adaptive ove...
  • 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...
  • 2016-12-12 13:40:49
    Fixed resistance testing method(1) Rotate the multimeter's function selector switch to the resistance range and select the appropriate range according to the nominal value.(2) Analog multimeter first two short-circuit test pen, zero; digital multimeter will be two short-circuit test pen, read the original readin...
  • 2016-11-30 15:14:12
    Holtek screen display driver IC HT16514Holtek Semiconductor's HT16514 is designed for applications such as POS machines and multimedia computers. Holtek HT16514 can be used for a wide range of logic operating voltage 2.7V ~ 5.5V, providing 60V high voltage output, and can be defined by the user D...
  • 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...
  • 2016-12-19 09:50:06
    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 by the physical channel re...
  • 2016-11-27 20:30:22
    Analog Device Testing: Test with an op amp. From the "A" point "virtual ground" concept: ∵ Ix = Iref, ∴ Rx = Vs / V0 * Rref, Vs, Rref excitation source respectively, the instrument calculates the resistance. Measured V0, then Rx can be obtained. If the measured Rx is capacitance, inductance, then V...
  • 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...
  • 2017-01-13 21:27:17
    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...
  • 2016-11-30 15:15:45
    Holtek 8 - bit ControllerHoltek's 8-bit controller, the HT45RM03, is Holtek's new product for the three-phase brushless DC motor control field. HT45RM03 has 4K OTP program memory (ROM) and 192 Byte general data memory (RAM), operating voltage 2.2V ~ 5.5V, the maximum system frequency ...
  • 2017-03-16 18:41:28
    When the PN junction plus the forward voltage, that is, the positive pole of the power supply P area, the negative then connected to the N zone, the applied electric field and the PN junction in the opposite direction of the electric field. Under this applied electric field, the equilibrium state of the PN ju...
  • 2017-03-16 18:38:40
    Information technology development technology to promote the military changes, the use of wireless sensor networks to achieve the monitoring of enemy forces within the region and equipment, real-time monitoring of battlefield conditions, positioning targets, monitoring of nuclear attacks or biochemical attacks. Wirel...
  • 2016-08-19 00:55:38
    Ring winding machine seriesRing type winding the line machine various types, head of different products can be interchanged, flexible and convenient operation, fast speed and high efficiency, quality and quantity, price is reasonable, applicable wire diameter 0.06~1.5MM. minimum diameter of 2mm. Mainly the followi...
  • 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...
  • 2016-11-30 15:17:16
    Toshiba Tecra R800 seriesTecra R800 series equipped with the second generation of intelligent Intel Core TM i5 dual-core processor *, the peak performance and surging momentum, the success of your every shot uncommon. With up to 8GB of DDR3 memory support, but also make the whole system to maintain high ...
  • 2016-12-13 09:41:22
    Direct Attached Storage (DAS) is an abbreviation for Direct Attached Storage, which means that an external storage device is directly connected to a computer through a connecting cable. DAS this direct way to solve the single server storage space expansion, high-performance transmission needs, and a single ...
  • 2016-11-28 19:59:29
    1.2.5 series and parallel capacitors 1. Series connection of capacitors The number of capacitor plates connected end to end, connected into a string, which is the capacitor in series. Figure 1.27 is a series circuit of three capacitors. Assuming that the total capacitance of the series capacitor is C, 1 / C =...
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