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

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

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