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EMC design, test and typical case of switching power supply / Electronic Industry Press

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  • Publishing House: Publishing House of electronics industry
  • ISBN:9787121138942
  • Revision: 1
  • Commodity code: 10710789
  • Packing: paperback
  • Folio: 16 open
  • Publication time: 2011-07-01
  • Paper: offset paper
  • Page number: 344
  • Text language: Chinese
    • content validity

      "Electromagnetic compatibility design, switching power supply test and typical case" to the electromagnetic compatibility of switch power supply as the main line, introduces the electromagnetic compatibility test project of switching power supply, switching power supply and related test requirements and test methods, emphatically introduces the electromagnetic compatibility design of switch power supply, the corresponding countermeasures and 18 typical cases. "Electromagnetic compatibility design of switch power supply, and strive to" test case for practical purposes, on both measures according to the characteristics of circuit switching power supply can take the harassment, also according to the performance characteristics of a single device to explain its countermeasures, in the switching power supply that should be paid attention to in place.
      Reader object: electromagnetic compatibility design, test and typical case of switching power supply is suitable for the circuit design and process design personnel of switching power supply, the system design and research personnel of electronic equipment, as well as the on-site application and maintenance personnel of electronic equipment to read reference.

      Inner page illustration

        • Catalog

          The first chapter is the EMC test standard of switching power supply
          1.1 overview
          Electromagnetic compatibility test requirements of 1.2 switching power supply
          1.3 basic requirements for EMC performance of in machine switching power supply for information technology equipment products
          Test of 1.3.1 electromagnetic disturbance emission
          Measurement of 1.3.2 harmonic current emission
          Test of 1.3.3 immunity performance
          Summary of electromagnetic compatibility test requirements for switching power supply in 1.3.4
          The second chapter is the measurement of electromagnetic disturbance of switching power supply
          Measurement of conducted disturbance of 2.1 AC power line (frequency range 015~30MHz)
          Layout of 2.1.1 test
          2.1.2 measuring receiver
          2.1.3 artificial power network
          2.1.4 test method
          Field intensity measurement of 2.2 radiated disturbance (frequency range 30 ~ 1000MHz)
          Layout of 2.2.1 test
          2.2.2 necessary test facilities
          2.2.3 test method
          2.3 measurement of radiation power emission with absorption clamp method (frequency range 30 ~ 300MHz)
          The proposal of 2.3.1 test method
          2.3.2 power absorbing clamp
          2.3.3 measuring lines and instructions
          2.3.4's comment on radiated emission test using absorption clamp method
          The third chapter: harmonic current emission measurement of switching power supply
          Generation of 3.1 harmonic current
          The harm of 3.2 harmonic current
          Measuring circuit and measuring method of 3.3 harmonic current
          3.3.1 measuring line
          3.3.2 measurement method
          Review of 3.3.3 standard for harmonic current emission test
          The fourth chapter is the measurement of the immunity of switching power supply
          4.1 ESD immunity test
          Generation and harm of 4.1.1 static electricity
          Electrostatic discharge test of 4.1.2
          Simulation of electrostatic discharge in 4.1.3
          Discharge mode in 4.1.4 electrostatic discharge test
          Type test of 4.1.5 Laboratory
          Test grades of 4.1.6 electrostatic discharge
          Evaluation of 4.1.7 test results
          4.1.8 test report
          Comment on the standard of 4.1.9 ESD test
          Brief introduction of 4.1.10 new national ESD immunity test standard (GBT176262 - 2006)
          Brief introduction of 4.1.11 latest international ESD test standard IEC61000 - 4 - 2:2008
          4.2 radio frequency radiated electromagnetic immunity test
          The origin of 4.2.1 radio frequency electromagnetic field immunity test
          Immunity test of 4.2.2 radio frequency radiated electromagnetic field
          Test grades for 4.2.3 radio frequency radiated electromagnetic fields
          Test methods for 4.2.4 radio frequency radiated electromagnetic field immunity test (laboratory type test)
          Test record of 4.2.5 radio frequency radiated electromagnetic immunity test
          Radio frequency electromagnetic field immunity test of 4.2.6 using GTEM cell
          Brief introduction of 4.2.7 new national radio frequency radiated electromagnetic immunity test standard (GBT176263 - 2006)
          Standard review of 4.2.8 radio frequency electromagnetic field test
          4.3 electrical fast transient pulse immunity test
          Generation of 4.3.1 fast transient pulse train and its influence on equipment reliability
          4.3.2 electric fast transient pulse generator
          Configuration and layout of 4.3.3 electrical fast transient pulse test
          4.3.4 laboratory formal test
          Introduction of 4.3.5 new national rapid transient pulse swarm immunity test standard (GBT176264 - 2008)
          Review of 4.3.6 standard for fast transient burst immunity test
          4.4 Surge immunity test
          The problem of 4.4.1 Surge immunity test
          4.4.2 surge generator
          4.4.3 Surge immunity test
          Introduction of 4.4.4 new national Surge immunity test standard (GBT176265 - 2008)
          Comment on 4.4.5 Surge immunity test standard
          4.5 conducted interference immunity test induced by RF field induction
          The origin of conduction interference induced by radio frequency field induction in 4.5.1
          Test requirements and test levels of conducted interference immunity test conducted by 4.5.2 radio frequency field induction
          4.5.3 test equipment necessary for conducted interference immunity test induced by RF field induction
          Test method for conducted interference immunity test induced by radio frequency field induction of 4.5.4
          4.6 voltage sag, short interruption and voltage gradual immunity test
          Generation of voltage sags, short interruptions and voltage gradients in 4.6.1
          Test instrument for 4.6.2 voltage sag and short interruption
          Priority level and duration of voltage sags and short interruptions in 4.6.3
          Test method for voltage sags and short interruptions of 4.6.4
          The fifth chapter qualitative test of electromagnetic disturbance emission of switching power supply
          5.1 comparison of "normal" radiation emission qualitative test scheme
          5.2 comparison of "normal" conduction emission qualitative test scheme
          5.3 qualitative observation of radiation emission test scheme
          Qualitative observation scheme of 5.3.1 using spectrum analyzer
          Qualitative observation scheme of 5.3.2 using high frequency oscilloscope
          5.4 qualitative observation of conduction disturbance emission test scheme
          The sixth chapter is the analysis of the electromagnetic disturbance of the switching power supply, the nature of the disturbance and the overview of the disturbance suppression technology
          Electromagnetic disturbance emission of 6.1 switching power supply
          Cause analysis of electromagnetic disturbance emission of 6.2 switching power supply
          6.2.1 input rectifier circuit
          6.2.2 switching circuit
          6.2.3 secondary rectification circuit
          6.2.4 control loop
          Disturbance caused by distributed capacitance in 6.2.5
          Property analysis of electromagnetic emission from 6.3 switching power supply
          Radio frequency electromagnetic disturbance of 6.3.1 switching power supply
          Harmonic current emission problem of 6.3.2 switching power supply
          Overview of electromagnetic interference suppression technology for 6.4 switching power supply
          Application of 6.4.1 soft switching technology in switching power supply
          Modulation of 6.4.2 switching frequency
          Design of 6.4.3 optimized driving circuit for power switch tube
          6.4.4 passive filtering technology
          Active suppression technique for 6.4.5 common mode interference
          The design of 6.4.6 printed circuit board
          Selection of 6.4.7 components
          The seventh chapter radiated noise of switching power supply and its suppression method
          Radiation emission of 7.1 switching power supply
          The occurrence of radiation disturbance in 7.1.1 switching power supply
          7.1.2 electromagnetic radiation caused by "ring antenna"
          7.2 reduce the radiation noise of the switching power supply by reducing the area of the loop
          7.3 reduce the harmonic component in switching frequency by using snubber absorption
          Treatment of primary high frequency and high voltage inverter circuit with 7.3.1
          The treatment of secondary rectification circuit by 7.3.2
          7.4 reduce the radiation noise by designing the printed circuit board of switching power supply
          The eighth chapter is switching power supply conducted disturbance and power line input filter
          Numerical analysis of conducted disturbance measurement results for 8.1 switching power supply
          General suppression technique of conducted disturbance in 8.2 switching power supply
          Analysis of 8.2.1 differential mode filtering
          Analysis of common mode conducted disturbance suppression in 8.2.2
          8.3 the role of power line filter
          Types of 8.3.1 power line filters
          Main types of 8.3.2 power line filter
          Power line input filter for 8.3.3 switching power supply
          Measurement of insertion loss of 8.4 power line filter
          Definition of insertion loss in 8.4.1
          Measurement of insertion loss of 8.4.2
          Design of input filter for 8.5 switching power supply
          Design of inductor in input filter of 8.6 switching power supply
          The working principle of 8.6.1 common mode inductor
          Magnetic core material of 8.6.2 common mode inductor
          Common mode inductor using ferrite core as material in 8.6.3 switching power supply
          8.6.4 is suitable for the shape of the magnetic core of the common mode inductor
          Selection of inductance for 8.6.5 common mode inductor
          Design of 8.6.6 common mode inductor
          Winding of 8.6.7 common mode inductor
          Parasitic differential mode inductors in 8.6.8 common mode inductors
          Several factors affecting the high frequency characteristics of common mode inductors by 8.6.9
          Selection of magnetic cores for 8.6.10 differential mode inductors and differential mode inductors
          8.6.11 common differential mode inductor core material
          Some other problems in the design and fabrication of 8.6.12 differential mode inductors
          The ninth chapter is the transient interference suppression of switching power supply
          9.1 electromagnetic interference
          The existing mode of 9.1.1 electromagnetic interference
          The judgment of jamming mode by 9.1.2
          Types of line interference in 9.1.3 power supply
          The way 9.1.4 interferes with access to devices
          Influence of 9.1.5 interference on equipment operation
          Suppression techniques of 9.1.6 interference
          9.2 transient interference absorption device
          9.2.1 gas discharge tube
          9.2.2 metal oxide varistor (MOV)
          9.2.3 silicon transient voltage absorption diode (TVS tube)
          9.2.4 solid state discharge tube
          Several common problems in the use of 9.2.5 transient voltage absorption devices
          9.2.6 combined protector
          9.3 ferrite anti interference magnetic core
          The working principle of 9.3.1 ferrite anti interference magnetic core
          Application of 9.3.2 ferrite anti interference magnetic core
          Material, shape and size selection of 9.3.3 ferrite anti interference magnetic core
          The main points of using 9.3.4 ferrite anti interference magnetic core
          Example of 9.3.5 ferrite anti interference magnetic core
          9.4 isolation transformer
          9.4.1 overview
          The simplest isolation transformer of 9.4.2
          9.4.3 isolation transformer with shielding layer
          9.4.4 high performance isolation transformer (super isolated transformer)
          Installation of 9.4.5 isolation transformer
          Coordination of 9.4.6 isolation transformer with filter and surge suppressor
          The tenth chapter design of printed circuit board for switching power supply
          10.1 overview
          Common materials and installation methods of printed circuit board 10.2
          Common materials for 10.2.1 printed circuit board
          Main electrical performance of 10.2.2 printed circuit board
          Installation method of components for 10.2.3 printed circuit board
          10.3 general considerations on layout of printed circuit boards
          The ground wire problem of 10.4 printed circuit board
          Wiring and layout of 10.5 printed circuit board
          Printed circuit board design example of 10.6 switching power supply
          Example of 10.6.1TOPSwitch single chip switching power supply
          Power circuit wiring example of 10.6.2 buck switching power supply
          The eleventh chapter: high frequency transformer in switching power supply
          Loss of high frequency transformer and selection of wire diameter in 11.1 switching power supply
          11.1.1 DC loss
          11.1.2 AC loss
          11.2 high frequency transformer design must pay attention to the problem
          Leakage inductance of 11.2.1 primary coil
          The distributed capacitance of the 11.2.2 coil itself
          Coupling capacitance between primary coil and secondary coil of 11.2.3
          Winding problem of 11.3 high frequency transformer
          11.3.1 primary winding
          11.3.2 primary bias winding
          11.3.3 secondary winding
          Description of winding sequence of high frequency transformer winding by 11.3.4
          11.3.5 summary
          Shielding problem of 11.4 high frequency transformer
          Shielding between windings of 11.4.1 high frequency transformer
          Magnetic field shielding of 11.4.2 high frequency transformer
          Insulation problem of 11.5 high frequency transformer
          11.5.1 method for strengthening insulation of high frequency transformer
          11.5.2 uses multiple insulated conductors in high frequency transformers
          The noise problem of 11.6 high frequency transformer
          The twelfth chapter is suitable for switching power supply electromagnetic interference suppression chip components
          Application examples of 12.1 piece electromagnetic compatibility countermeasure device
          12.2 slice ferrite magnetic beads
          Working principle of 12.2.1 chip ferrite bead
          Classification of 12.2.2 Chip Ferrite Beads
          12.3 chip inductors and chip common mode inductors
          12.3.1 overview
          12.3.2 chip inductors
          The difference between 12.3.3 chip inductors and chip magnetic beads
          12.3.4 chip common mode inductor
          Examples of 12.3.5 chip common mode inductors
          12.4 chip capacitor
          12.4.1 chip laminated ceramic dielectric capacitor
          Application of 12.4.2 chip capacitor in EMI suppression of equipment
          Circuit form of 12.4.3 chip capacitor
          Comparison of 12.4.4 chip capacitors
          12.5 chip high frequency noise suppression module
          12.5.1 various chip high frequency noise filter modules
          An important problem in the use of 12.5.2 high frequency noise filter module
          12.6 chip varistor
          Structure and working principle of 12.6.1 chip laminated varistor
          Characteristics of 12.6.2 chip laminated varistor
          Example of 12.6.3 chip laminated varistor
          Application examples of 12.7 piece electromagnetic compatibility countermeasure device
          Combination of 12.7.1 chip countermeasure devices (combination of magnetic beads and three terminal capacitors)
          Countermeasure of noise suppression for 12.7.2 power supply line
          In 12.7.3 switching power supply, the chip three terminal capacitor is combined with aluminum electrolysis and tantalum electrolytic capacitors to improve the filtering
          High frequency characteristics
          Noise suppression strategy of 12.7.4 signal line
          Application of 12.7.5 chip capacitor
          Application of 12.7.6 chip Varistors
          The thirteenth chapter is the EMC design, test and countermeasure case analysis of switching power supply
          Case 1: diagnosis and rectification steps of electromagnetic disturbance radiated emission exceeding standard
          Case 2: application of shielding layer for high frequency transformer of switching power supply
          Case 3: electromagnetic compatibility considerations of a power system consisting of multiple switching power supplies
          Case 4: Electromagnetic Compatibility Design of portable intelligent thermometer switching power supply
          Case 5: use ferrite anti interference core on power line
          Case 6: radiated emission caused by power source of communication equipment hub
          Case 7: EMC design, test and Countermeasure of switching power supply
          Case 8: excessive radiation caused by improper wiring of internal power source
          Case 9: excessive radiation caused by wrong grounding wire
          Case 10: correct installation of lightning protection device
          Case 11: damage to the protected chip caused by improper use of magnetic beads in surge test
          Case 12: installation and use of power filter
          Case 13: the problem of excessive conduction disturbance caused by similar products and different layout
          Case 14: handling of unqualified problems in Surge immunity test of room electric heater
          Case 15: the rectification of the conducted emission and surge immunity test of the electronic transformer
          Case 16: the effect of capacitor capacity on the decoupling effect of integrated circuit power supply
          Case 17: Measurement and suppression of output ripple and noise of switching power supply
          Case 18: structure and EMC test of industrial automation equipment
          The fourteenth chapter electromagnetic compatibility fault diagnosis and common treatment methods
          The radiation emission exceeded the standard of 14.1 equipment
          14.2 the conduction emission of equipment is beyond standard
          The ESD immunity test of 14.3 equipment is not qualified
          14.4 equipment RF radiation electromagnetic field immunity test is not qualified
          14.5 equipment pulse group interference immunity test is not qualified
          14.6 equipment Surge immunity test is not qualified
          The conducted immunity test caused by RF field induction of 14.7 equipment is not qualified
          14.8 equipment voltage drop, short interruption immunity test is not qualified
          The electromagnetic compatibility of fault location equipment 14.9 in the debugging process all down