APW7108
Operating Waveforms (Cont.)
Input Step-Down Transient at PWM Mode
Input Step-Up Transient at PWM Mode
IOUT1 = 5A
IOUT1 = 5A
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2
1
2
3
3
CH1: VIN (10V/div)
CH1: VIN (10V/div)
CH2: VOUT1 (AC, 100mV/div)
CH3: VOUT2 (AC, 100mV/div)
Time: 20ms/div
CH2: VOUT1 (AC, 100mV/div)
CH3: VOUT2 (AC, 100mV/div)
Time: 20ms/div
Mode Transient of PFM to PWM
Mode Transient of PWM to PFM
IOUT1 = 5A to 0.1A
IOUT1 = 0.1A to 5A
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2
1
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4
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4
CH1: VOUT1 (AC, 100mV/div)
CH2: VPHASE1 (20V/div)
CH3: IL1 (5A/div)
CH1: VOUT1 (AC, 100mV/div)
CH2: VPHASE1 (20V/div)
CH3: IL1 (5A/div)
CH4: VOUT2 (AC, 100mV/div)
Time: 10ms/div
CH4: VOUT2 (AC, 100mV/div)
Time: 10ms/div
Copyright ã ANPEC Electronics Corp.
9
www.anpec.com.tw
Rev. A.4 - Jan., 2009
ANPEC [ ANPEC ELECTRONICS COROPRATION ]
