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STMicroelectronics L6563H 100 W TM PFC demonstration board EVL6563H-100W EVL6563H-100W Data Sheet

Product codes
EVL6563H-100W
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Test results and significant waveforms
AN3063
22/33
Doc ID 16261 Rev 3
The event of an open loop is captured in 
and 
. We can notice the protection 
intervention, latching the operation of the L6563H. As highlighted in 
 
the L6563H is 
supplied by the HVS circuit, maintaining Vcc value above its UVLO threshold. As mentioned 
previously, to restart the system, the input power must be recycled.
Figure 29.
EVL6563H-100W load transient at 
115 Vac, 60 Hz, full load to no load
         
CH1: PFC output voltage
CH2: PFC_OK (pin #7) 
CH3:  gate drive (pin #15) 
CH4: Iout
Figure 30.
EVL6563H-100W open loop at 115 
Vac, 60 Hz, full load  
Figure 31.
EVL6563H-100W open loop at 115 
Vac, 60 Hz, full load, long 
acquisition
         
CH1: PFC output voltage
CH2: Vcc (pin #16)
CH3: gate drive (pin #15) 
CH4: PWM_LATCH (pin#8)
         
CH1: PFC output voltage
CH2: Vcc (pin #16) 
CH3: gate drive (pin #15)
CH4: PWM_LATCH (pin#8)