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TA0319
TECHNICAL ARTICLE
New Damper Diodes Family for CRT TV & CRT Monitor
The Coolest Damper Diodes
1 Introduction
2 Market trends
3 Key parameters of damper diodes
  3.1 Behaviour of the basic circuit of the horizontal deflection power stage
    Figure 1. Simplified diagram of the horizontal deflection stage
    Figure 2. Waveforms in the basic horizontal deflection circuit
  3.2 Key parameters of DAMPER diodes and their associated losses losses (Pcond)
    3.2.1 Forward voltage (VF) and conduction losses (Pcond)
    3.2.2 Peak forward voltage (VFP) and turn on switching on losses (Pon)
    Figure 3. Current, voltage and switching energy in DAMPER diode at turn on (DTV1500HDFP)
    3.2.3 Leakage current and reverse losses
    3.2.4 Reverse recovery time (trr) and turn off switching losses (Poff)
    Figure 4. Main features of the different losses
  3.3 DAMPER diodes design rules
    Figure 5. Basic circuit of the horizontal deflection circuit with East-West correction
4 The best trade-off
  4.1 CRT TV application
    Table 1. New CRT TV damper diodes
    Table 2. New 3-pin full molded TO-220FPAB package for CRT TV
  4.2 CRT monitor application
    Table 3. CRT Monitor Damper diodes
    Table 4. New 3-pin full molded TO-220FPAB package for CRT monitor.
  4.3 Package
    Figure 6. Package lead bending options
5 Conclusion
  Figure 7. The new DAMPER range.