Power Factor
Over than 0.4 at 90 – 264Vac & max load condition
On Condition : In a moment of Power_ON Signal activated, the current of 3.5V output should be limited within 40mA(Max) at LCD TV condition for stability
Do not turn “Power_ON” Signal on at the load condition of 3.5V output, more than 40mA
Total regulation for each output circuit includes the results of input voltage variation,load variation, warm-up drift and temperature change.
The following instruments shall be used for measuring ripple noise.
1. Probe having impedance ratio of 1:1.
2. Oscilloscope having frequency characteristic of 100MHz or more.
Ripple and noise are measured at the end of output cable which are added a 0.1uF ceramic capacitor and 47uF electrolytic capacitor. ( connected parallel )
On Condition: In a moment of Power ON Signal activated, the current of 3.5V output should be limited within 40mA (Max) at LCD TV condition for stability.
Do not turn “Power ON” Signal on at the load condition of 3.5V output, more than 40mA.
Power turn on system (Only E/Load condition)
If Main Board is opened, that is electrical load condition, drive on signal must be turn on after about 1.5s behind power on signal.
Short circuit protection between different output terminals is not considered.
Trip point for over voltage indicates the operating point when the output voltage slowly increases.
The conditions of Over Current measurement
Multi output(3.5V,12V,24V) is nominal load state except an over current measurement.
Schematic
Connector voltages
Over than 0.4 at 90 – 264Vac & max load condition
On Condition : In a moment of Power_ON Signal activated, the current of 3.5V output should be limited within 40mA(Max) at LCD TV condition for stability
Do not turn “Power_ON” Signal on at the load condition of 3.5V output, more than 40mA
Total regulation for each output circuit includes the results of input voltage variation,load variation, warm-up drift and temperature change.
The following instruments shall be used for measuring ripple noise.
1. Probe having impedance ratio of 1:1.
2. Oscilloscope having frequency characteristic of 100MHz or more.
Ripple and noise are measured at the end of output cable which are added a 0.1uF ceramic capacitor and 47uF electrolytic capacitor. ( connected parallel )
On Condition: In a moment of Power ON Signal activated, the current of 3.5V output should be limited within 40mA (Max) at LCD TV condition for stability.
Do not turn “Power ON” Signal on at the load condition of 3.5V output, more than 40mA.
Power turn on system (Only E/Load condition)
If Main Board is opened, that is electrical load condition, drive on signal must be turn on after about 1.5s behind power on signal.
Short circuit protection between different output terminals is not considered.
Trip point for over voltage indicates the operating point when the output voltage slowly increases.
The conditions of Over Current measurement
Multi output(3.5V,12V,24V) is nominal load state except an over current measurement.
Schematic
