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  • 2017-02-15 22:33:00
    Agilent Handheld Digital Multimeter U1253A FeaturesU1253A is an extension of the Agilent U1250 Series Handheld Digital Multimeter. Instrumentation and simultaneous measurements, as well as the flexibility required to provide quick verification tests, tolerance tests, and tolerance checks.Handheld Digi...
  • 2016-12-19 09:51:51
    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...
  • 2016-12-10 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...
  • 2016-12-10 09:27:36
    Hi-Fi audio in the electronic components - metal film resistorsIn order to better achieve the perfect sound quality, Hi-Fi audio circuit commonly used in low thermal noise, good stability of the resistance, in all kinds of resistors, the metal film resistor performance is particularly good.Metal film resistance i...
  • 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...
  • 2016-12-10 09:29:51
    Classification of resistorsThe resistor is a current-limiting element. Resistor is to provide a circuit to prevent the flow of current components, resistors through the consumption of electricity, the distribution of current in the circuit, so as to achieve a specific purpose.Resistors can be divided into three cat...
  • 2017-02-15 22:37:18
    1. Overvoltage Protection (OVP) Test: When the output voltage of the power supply exceeds its maximum rated voltage, the power supply turns off its output (SHUTDOWN), which is called overvoltage protection. The overvoltage protection test is used to verify that the power supply reacts correctly when the...
  • 2016-12-10 09:24:06
    What is a nonlinear resistor?Resistors with different resistances for different end currents are referred to as non-linear resistors. For such a resistor, the resistance is a function of the current flowing in the device. A simple example of a nonlinear resistor is an incandescent lamp. Since it is not a constant ...
  • 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 ...
  • 2016-08-15 13:08:35
    Solid state relay and transformer couplingPhotoelectric coupling and the transformer coupling solid state relay input and output circuit of isolated and coupled mode: photoelectric coupling usually use photoelectric diode photoelectricity triode tube, photoelectric diode, bidirectional silicon controlled rectifier co...
  • 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...
  • 2017-01-13 21:25:39
    1.2.3 The unit of capacitance The basic unit of capacitance is F (method [pull]). The actual capacitance of the device is usually very small, "F" this unit appears too large, so there are other units of capacitance, such as mF (microfarads), uF (microfar), nF (natto), pF ). The conversion relationship betwe...
  • 2016-11-29 13:36:54
    Linear Technology LT3008 FeaturesThe Linear Technology LT3008 is a high-voltage, micropower, and tiny LDO with ultralow quiescent current of only 3uA. The device is suitable for applications that require moderate output drive capability and high input voltage applications and ultra low standby power cons...
  • 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...
  • 2016-12-12 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...
  • 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...
  • 2016-08-19 00:49:00
    The standard method of color ring inductance and the same color ring resistance. The size of the volume can be resolved through the size of the current. Because the use of the environment is different, it is impossible to calculate all the inductance requirements in a way, the specific environment of the design. Sm...
  • 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...
  • 2016-12-12 13:41:19
    Five color ring and four color ring resistorThe color ring resistor is the most common type of resistor used in a variety of electronic devices. Now the color ring resistor has five color ring also has four color ring resistor. The five color ring and the difference between the four color ring where?Five-color rin...
  • 2017-03-16 18:40:53
    When the PN junction plus reverse voltage, that is, the positive pole of the power supply connected to the N area, the negative then P area. The direction of the applied electric field is the same as the direction of the electric field in the PN junction, and the PN junction is in the reverse bias. Under the...
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