TIDT328 april   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Considerations
    3. 1.3 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Load Regulation
    3. 2.3 Thermal Images
      1. 2.3.1 Unmodulated 60 VDC - Output
      2. 2.3.2 60 VAC - Output Modulated With 120-Hz Sinus (0 V – 5 V)
      3. 2.3.3 Conclusion
    4. 2.4 Bode Plot at Maximum Duty Cycle
  7. 3Waveforms
    1. 3.1 Switching
      1. 3.1.1 Transistor Q1 Operating in Deep DCM
        1. 3.1.1.1 Drain to Source
        2. 3.1.1.2 Gate to Source
      2. 3.1.2 Diode D3 (Referenced to VOUT)
    2. 3.2 Output Voltage Ripple
    3. 3.3 Input Voltage Ripple
    4. 3.4 Start-Up Sequence
    5. 3.5 Shutdown Sequence
  8.   A Modulating the Output Voltage
    1.     A.1 Revision B
      1.      A.1.1 Bode Plot
      2.      A.1.2 Simulation
      3.      A.1.3 Measured Waveforms
        1.       A.1.3.1 Sinus 40 Hz
        2.       A.1.3.2 Sinus 100 Hz
        3.       A.1.3.3 Sawtooth 1
        4.       A.1.3.4 Sawtooth 2
        5.       A.1.3.5 Pure Triangle
        6.       A.1.3.6 Conclusion
    2.     A.2 Revision C
      1.      A.2.1 Bode Plot
      2.      A.2.2 Measured Waveforms
        1.       A.2.2.1 Sinus 120 Hz
        2.       A.2.2.2 Sawtooth 1
        3.       A.2.2.3 Sawtooth 2
        4.       A.2.2.4 Pure Triangle
      3.      A.2.3 Analysis Capacitor 1 µF, 100 V, X7R, 1206
        1.       A.2.3.1 DC-Bias
        2.       A.2.3.2 Resistance (ESR)
        3.       A.2.3.3 Reactance
        4.       A.2.3.4 Impedance

A.2.3.1 DC-Bias

GUID-20230314-SS0I-V91S-VQQC-RFHP0F51H3XC-low.jpg Figure 4-13 Effective Capacitance vs DC Bias

Figure 4-13 illustrates that with 60-VDC output voltage the effective capacitance of the 1-µF capacitor is just
400 nF.
千亿体育app官网登录(中国)官方网站IOS/安卓通用版/手机APP | 米乐app下载官网（中国）|ios|Android/通用版APP最新版 | 米乐|米乐·M6（中国大陆）官方网站 | 千亿体育登陆地址 | 华体会体育（中国）HTH·官方网站 | 千赢qy国际_全站最新版千赢qy国际V6.2.14安卓/IOS下载 | 18新利网v1.2.5|中国官方网站 | bob电竞真人（中国官网）安卓/ios苹果/电脑版【1.97.95版下载】 | 千亿体育app官方下载(中国)官方网站IOS/安卓/手机APP下载安装 |