EPC EPC9004C Manuale di avvio rapido - Pagina 4

Sfoglia online o scarica il pdf Manuale di avvio rapido per Hardware del computer EPC EPC9004C. EPC EPC9004C 5.

Stampa la pagina
V CC
V CC
PolQlow
PolQup
GND
Dual
GND
Dual/Single PWM, Buck, and Boost Mode Selector
I n1
I n1
I n1
GND
R 601
C601
0402
0402
10 k 1/16 W
47 pF 50 V
PolQup
GND
GND
GND
R 603
0402
10 k 1/16 W
GND
Signal Polarity and Input Bu ers
I n2
I n1
I n2
GND
I n2
R 602
C602
0402
0402
Dual
10 k 1/16 W
47 pF 50 V
PolQlow
GND
GND
R 605
R 604
0402
0402
10 k 1/16 W
10 k 1/16 W
GND
GND
JP630
M50-2030005
50 mil
J630
Buck Single Signal
V CC
1
2
V CC
Boost Single Signal
3
4
V CC
5
6
Dual Signal
GRPB032VWVN-RC
50 mil TH
V CC
V CC
U610
74LVC1G99GN,115
C610
0402
V C C
1
100 nF 25 V
2
GND
3
7
I nBufQup
5
R 620
6
G ND
0603
120 0.1 W
D620
SD M03U40-7
GND
30 V 30 mA
Polarity 0=Non-invert, 1= Invert
Deadtime Upper
Default = 10 ns
V CC
V CC
U611
74LV C1G99GN,115
C611
0402
V C C
1
100nF 25V
2
GND
3
7
I nBufQlow
5
R 625
6
0603
G ND
120 0.1 W
D625
SD M03U40-7
GND
30 V 30 mA
Polarity 0=Non-invert, 1= Invert
Deadtime Lower
Default = 10 ns
Figure 18: EPC9004C Dead-time and Bypass schematic
U612
74LVC1G99GN,115
V C C
SWbyp
1
2
3
UseDT
5
6
R 621
G ND
0402
C620
10 k 1/16 W
0402
GND
100 pF 50 V
GND
GND
GND
Output Bu ers and Signal Select
U614
74LV C1G99GN,115
V C C
SWbyp
1
2
3
UseDT
5
6
R 626
G ND
0402
C625
10 k 1/16 W
0402
GND
100 pF 50 V
GND
GND
GND
JP640
M50-2020005
50 mil
J640
SWbyp
V CC
1
2
V CC
3
4
UseDT
V CC
5
6
GRPB032VWVN-RC
50 mil TH
Bypass Mode Select
V CC
U615
SN74LVC1G66DBV
Bi directional SW 5
V CC
I n1
V CC
V CC
V CC
SW byp
G ND
C615
C612
0402
0402
R 641
100 nF 25 V
100 nF 25 V
0402
10 k 1/16 W
GND
GND
GND
GND
7
DT Qup
V CC
U616
SN74LVC1G66DBV
Bi directional SW 5
V C C
I n2
V CC
V CC
V CC
SW byp
C614
G ND
C616
0402
0402
R 643
100 nF 25 V
100 nF 25 V
0402
10 k 1/16 W
GND
GND
GND
GND
7
DT Qlow
Full Bypass
No Bypass
DT Bypass
5.5 V
Qup
5.5 V
Qlow