- 81 -
49 GND P Power ground
48 GND P Power ground
47 OUT C O Output, half-bridge C
46 OUT C O Output, half-bridge C
45 PVDD C P Power supply input for half-bridge C
44 PVDD C P Power supply input for half-bridge C
43 BST C P HS bootstrap supply (BST)
42 BST B P HS bootstrap supply (BST)
41 PVDD B P Power supply input for half-bridge B
40 PVDD B P Power supply input for half-bridge B
39 OUT B O Output, half-bridge B
38 OUT B O Output, half-bridge B
37 GND P Power ground
36 GND P Power ground
35 OUT A O Output, half-bridge A
34 OUT A O Output, half-bridge A
33 PVDD A P Power supply input for half-bridge A
32 PVDD A P Power supply input for half-bridge A
31 BST A P HS bootstrap supply (BST)
30 GVDD P Voltage supply
29 GND
Power ground
3.5.13 Function introduction to HS817
HS817 is a photoelectric coupler, shown as the figure 3.5.20.1. The right side is a light emitting diode,
which sends out light of different intensity according to the strength of voltage inputted from the right side,
generates photocurrent of different intensity on the left side according to light of different intensity, and outputs
from position D. The higher of the voltage inputted from the right side, the stronger of the light emitted from
light emitting diode and the larger of the photocurrent produced from position D. The lower of the voltage
inputted from the right side of photoelectric coupler, the weaker of the light emitted from light emitting diode
and the weaker of the current outputted from position D.
To Next Page
Loading...
