background image

1

2

3

4

5

6

7

8

A

B

C

D

8

7

6

5

4

3

2

1

D

C

B

A

C126

22nF

C127

22nF

R126

100R

R127

100R

BIAS-OP2

C129

22nF

R125
150R

C120

22nF

BIAS-DRV

L101
BEADS

C114
1nF

C104
100nF

C101
100nF

+ C119

10uF

L103

TOROID-20MM

C115
1nF

C105
100nF

R121
100R

C106
100nF

C116
1nF

R123
1K2

C107
100nF

C117
1nF

C123

22nF

C124

22nF

R118
NF

C103
100nF

C113
1nF

BIAS-OP1

R113
0R05

O/P-DCurr

RF-UNFILT

2

3

PA50 100W Power Amplifier

D

21-Feb-2002

00:01:56

C:\Program Files\Design Explorer 99 SE\rft\PA50.ddb - HFPA_Main.Sch

Title

Size:

Number:

Print Date:

File:

Revision:

Sheet

of

A3

RF Technology Pty Ltd

Unit 10, 8 Leighton Place

Hornsby, NSW 2077

Australia

Rev. Release Date: 

Originator:

Rev No.

ECO No.

Description of Change

C122

22nF

C125

22nF

+28V

+28F

CurrSense

R101

470R

+5V

R102

470R

R103

470R

B1Sense

B2Sense

R114
100K

R116
100K

R115

100K

R117

100K

BIAS-OP1

BIAS-OP2

BIAS-DRV

BIAS-OP1

BIAS-OP2

Driver Stage

Output Stage

Bias Voltage Measurement Interface

Drain Current Meter

L100
BEADS

C112
1nF

C102
100nF

C100
100nF

+ C118

10uF

R112

1R0

+28V

R100

470R

+5V

Drain Current Meter

+5V

+5V

DrvSense

Drv-DCurr

RF-UNFILT

J100

COAX-PAD

C108
1nF

C109
1nF

C110
1nF

C111
1nF

T102
RF-TFORMER-9:1

T100
4:1-UNBAL

R124
220R

R120
100R

R119
1K2

T101

1:1-BALUN

R122
NF

C128
22nF

Q102
MRF136

Q100
MRF174

Q101
MRF174

2

3

1

U100A

LM224

V+

4

V-

11

U100E

LM224

9

10

8

U100C

LM224

14

13

12

U100D

LM224

5

6

7

U100B

LM224

D100
BAV99

D101
BAV99

D102
BAV99

D103
BAV99

R106
21K

R107
21K

R104
21K

R105
21K

R108
21K

R109
21K

R110
21K

R111
21K

R128

0R05

C121

see table

C131

see table

C133

see table

C130
see table

C132
see table

L102
see table

L106
see table

L107
247nH

L104

315nH

L105

315nH

R129
150R

TP102

TEST-POINT

TP103

TEST-POINT

TP100

TEST-POINT

TP101

TEST-POINT

R131
150R

R133
150R

R130
150R

R132
150R

VREFB

VREFB

VREFB

R134

21K

R135

21K

R136

21K

R137

21K

R138
2R7

Note: C1000 is soldered accross the transformer primary pads onto the PCB
Note: C1001 is soldered directly onto the transformer front PCB

Содержание Pa50 Eclipse Series

Страница 1: ...gy rfinfo rftechnology com au October 2003 Revision 2 PA50 Amplifier Operation and Maintenance Manual This manual is produced by RF Technology Pty Ltd 10 8 Leighton Place Hornsby NSW 2077 Australia Co...

Страница 2: ...4 4 I O Connections 4 5 Circuit Description 5 5 1 Driver Stage 5 5 2 Output Stage 5 5 3 Low Pass Filter 5 5 4 Bias Supply 5 5 5 Reflectometer 6 5 6 Metering Circuits 6 6 Specifications 7 6 1 Physical...

Страница 3: ...ication and not an alarm condition as the exciter monitors the PA50 temperature at all times in order to keep within safe operating limits 2 Internal Adjustments All internal adjustments are factory s...

Страница 4: ...egrees This reading deviates by 10mV per degree of change TP203 Reverse voltage output from the reflectometer TP204 Forward voltage output from the reflectometer DB9 pin 1 GND DB9 pin 2 O P drain curr...

Страница 5: ...provide a balanced feed for the push pull output stage 5 2 Output Stage The output stage amplifies the 5 10 W from the driver to in excess of 150 W for final delivery into the low pass filter Q100 an...

Страница 6: ...0 provides a DC reference point for the diodes 5 6 Metering Circuits These circuits are included so that the exciter can interrogate the PA and read all the vital operating levels U203 is an A to D co...

Страница 7: ...The PA50 is designed to fit into a 19 inch rack mounted frame The installed height is 4RU or 178mm and the depth is 350mm The amplifier is 125mm wide An extruded aluminium heatsink with vertical fins...

Страница 8: ...us up to 60 degrees C ambient Spurious Emissions less than 0 25uW Maximum Heatsink Temperature 110 degrees C Mismatch Protection Protected from damage by control from the exciter Connectors Antenna co...

Страница 9: ...RF Technology PA50 Page 9 A ENGINEERING DRAWINGS A Engineering Drawings 1 Block Diagram 2 Main PCB Schematics 3 sheets...

Страница 10: ...63V NPO 1206 46 3310 01N0 C109 Capacitor 1nF 5 63V NPO 1206 46 3310 01N0 C110 Capacitor 1nF 5 63V NPO 1206 46 3310 01N0 C111 Capacitor 1nF 5 63V NPO 1206 46 3310 01N0 C112 Capacitor 1nF 5 63V NPO 1206...

Страница 11: ...10 AV99 D102 Diode BAV99 SOT 23 21 3010 AV99 D103 Diode BAV99 SOT 23 21 3010 AV99 D200 Diode BAV99 SOT 23 21 3010 AV99 D201 Diode BAV99 SOT 23 21 3010 AV99 D202 Diode ZRC400F03 4 096V reference 3 100p...

Страница 12: ...stor 1R 10 3W axial wirewound 51 1053 001R R113 Resistor 0R05 20W T0 220 51 T220 0R05 R114 Resistor 100K 1 200ppm 0805 51 8511 100K R115 Resistor 100K 1 200ppm 0805 51 8511 100K R116 Resistor 100K 1 2...

Страница 13: ...238 Resistor 100K variable 11 turn 4mm gull wing 53 SMV1 100K R235 Resistor 33R 5 1W 200ppm 1218 51 8251 0033 R236 Resistor 4K7 5 1206 51 3380 04K7 R237 Resistor 4K7 5 1206 51 3380 04K7 R238 Resistor...

Страница 14: ...H 7 turns CW 6 35mm ID 37 0635 1507 L3 Inductor 247nH 9 turns CW 6 35mm ID 37 0635 1509 L4 Inductor 247nH 10 turns CW 6 35mm ID 37 0635 1510 L5 Inductor 284nH 10 turns CW 6 35mm ID 37 0635 1510 L6 Ind...

Страница 15: ...pF 500V Silver Mica 1210 48 3003 03P9 C13 Capacitor 47pF 1 500V Silver Mica 1210 48 3003 047P C14 Not Fitted C15 Capacitor 18pF 1 500V Silver Mica 1210 48 3003 018P C16 Capacitor 82pF 1 500V Silver Mi...

Страница 16: ...6nH Coilcraft Maxispring 37 MAXI 246N L106 Inductor 380nH Coilcraft Maxispring 37 MAXI 380N Front Panel PCB R1 Resistor 100R 5 0 25W axial 51 1040 0100 D1 Diode LED Yellow RA 21 1010 LEDY D2 Diode LED...

Страница 17: ......

Страница 18: ...lts Rev Volts Driver Bias Q101 Bias Q100 Bias Temperature Compensation Q100 Bias voltmeter Q101 Bias voltmeter Temperature Compensation Driver Drain Current Q101 Bias voltmeter Q100 Bias voltmeter O P...

Страница 19: ...26 1K J204 LINK J205 LINK J203 LINK CurrSense DrvSense B1Sense B2Sense PwrSense R211 10K R210 10K R206 10K 5V R224 560R R223 100R S1 S2 S0 S1 S2 S0 S1 S2 S0 S 0 2 Forward Reflected Power Meter Fan Swi...

Страница 20: ...ge Output Stage Bias Voltage Measurement Interface Drain Current Meter L100 BEADS C112 1nF C102 100nF C100 100nF C118 10uF R112 1R0 28V R100 470R 5V Drain Current Meter 5V 5V DrvSense Drv DCurr RF UNF...

Страница 21: ...Size A3 Date 21 Feb 2002 Sheet of File C Program Files Design Explorer 99 SE rft PA50 ddb Drawn By 1 6 2 7 3 8 4 9 5 J2 DB9 D3 LED D2 LED D1 LED 28V 28V Power LED Over Temperature LED RF Output LED D...

Страница 22: ...ut Low Pass Filter C12 see table C25 see table Drv DCurr R1 1 2K R2 1 2K 28V C8 470uF L1 3u3H C6 100nF C7 1nF 28F 28F DrvSense C14 see table C17 see table C20 see table C23 see table C26 see table C24...

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