Tyco TX 75149 manual Voltage loop response Bode plot when Cb2=6800 ∝F

Page 11

Stability Analysis Tool

SENSE

LS1 RS1

 

 

LS2

RS2

 

 

 

 

 

 

 

 

 

 

Ra 1

Ra2

Ra 3

 

Rb1

Rb2

 

DC /DC

Ca 1

Ca2

Ca 3

 

Cb1

C b2

RL

C ONVERTER

 

 

 

 

 

 

 

 

La 1

La2

La3

Lb1

Lb 2

Please enter the circuit parameters below

 

 

 

 

Rload = 0.5

ohm

 

 

 

 

Rs1

= 1

 

 

 

 

Rs2

= 5

 

 

mohm

Ls1

= 4

 

 

 

 

Ls2

= 100

 

 

nH

Ra1

= 100

Ra2

= 100

Ra3

= 10

Rb1

= 10

Rb2

= 10

mohm

La1

= 1

La2

= 1

La3

= 1

Lb1

= 10

Lb2

= 10

nH

Ca1

= 10

Ca2

= 10

Ca3

= 1000

Cb1

= 1000

Cb2

= 1000

F

Click to Calculate Stability

Notepad Area for JFW050A Module

Magnitude of the Loop Gain

 

40

 

 

 

Gain(dB)

20

 

 

 

-20

 

 

 

 

0

 

 

 

 

-40

 

 

 

 

-60

 

 

 

 

100

1000

10000

100000

 

 

 

Frequency (Hz)

 

Phase of the Loop Gain

 

180

 

 

 

 

120

 

 

 

(deg)

60

 

 

 

0

 

 

 

Phase

 

 

 

-60

 

 

 

 

-120

 

 

 

 

-180

 

 

 

 

100

1000

10000

100000

 

 

 

Frequency (Hz)

 

Gain crossover frequency: 696.6 Hz

Phase Margin: 52.06 degrees

Fig. 5. Voltage-loop-response Bode plot with phase margin and gain crossover frequency calculated and displayed.

Stability Analysis Tool

LS1

RS1

LS2

RS2

SENSE

 

 

Magnitude of the Loop Gain

 

 

 

 

Ra 1

Ra2

Ra 3

Rb 1

Rb 2

 

40

 

 

 

DC /DC

Ca 1

Ca2

Ca 3

Cb 1

Cb2

RL

20

C ONVERTER

 

La 1

La2

La3

Lb1

Lb2

(dB)

 

 

0

 

 

 

 

 

 

Gain

-20

 

 

Please enter the circuit parameters below

 

-40

 

 

 

 

 

 

Rload = 0.5

ohm

 

 

 

-60

 

 

 

Rs1

= 1

 

 

Rs2

= 5

 

mohm

 

 

 

 

 

 

100

1000

10000

100000

Ls1

= 4

 

 

Ls2

= 100

 

nH

 

Frequency (Hz)

 

 

 

 

 

 

 

 

Ra1

= 100

Ra2 = 100

Ra3 = 10

Rb1

= 10

Rb2 = 10

mohm

 

 

 

 

La1

= 1

La2 = 1

La3 = 1

Lb1

= 10

Lb2 = 10

nH

 

Phase of the Loop Gain

 

Ca1

= 10

Ca2 = 10

Ca3 = 1000

Cb1

= 1000

Cb2 = 6800

F

 

 

180

 

 

 

 

 

 

Click to Calculate Stability

 

 

 

120

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(deg)

60

 

 

 

 

 

Notepad Area for JFW050A Module

0

 

 

 

 

 

Phase

 

 

 

 

 

-60

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-120

 

 

 

 

 

 

 

 

 

 

 

-180

 

 

 

 

 

 

 

 

 

 

 

100

1000

10000

100000

 

 

 

 

 

 

 

 

 

Frequency (Hz)

 

 

 

 

 

 

 

 

 

Gain crossover frequency: 399.5 Hz

 

 

 

 

 

 

 

 

 

 

Phase Margin:

42.8 degrees

 

Fig. 6. Voltage loop response Bode plot when Cb2=6800 F

11

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Contents StabilityAnalysis Tool Users Guide Copyright Page System Requirements IntroductionUSA SAT Introduction and Module Selection Using SATClick on the button Circuit configuration Configuration MenuClick to Calculate Stability Stability Analysis Tool Voltage loop response Bode plot when Cb2=6800 ∝F Paralleled Modules References Limitations of SAT Troubleshooting