HR1000A – RESONANT HALF-BRIDGE CONTROLLER
TYPICAL PERFORMANCE CHARACTERISTICS
(continued)
Performance waveforms are generated using the evaluation board built with design example on
page 20. VAC=230V, V
out
=19V, I
out
=4.7A, T
A
=25°C, unless otherwise noted.
Efficiency
95
90
85
80
75
70
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
I
OUT
(A)
V
SW
100V/div.
V
LG
10V/div.
I
R
1A/div.
V
SW
100V/div.
V
LG
10V/div.
I
R
1A/div.
Steady State
V
OUT
= 19V, I
OUT
= 4.7A
Steady State
V
OUT
= 19V, I
OUT
= 0A
Steady State
V
OUT
= 19V, I
OUT
= 4.7A
Steady State
V
OUT
= 19V, I
OUT
= 0A
Start-up
V
OUT
= 19V, I
OUT
= 0A
V
OUT_RIPPLE
/AC
100mV/div.
V
OUT_RIPPLE
/AC
100mV/div.
V
LG
5V/div.
V
OUT
10V/div.
I
R
2A/div.
Start-up
V
OUT
= 19V, I
OUT
= 4.7A
Shutdown
V
OUT
= 19V, I
OUT
= 0A
Shutdown
V
OUT
= 19V, I
OUT
= 4.7A
V
LG
5V/div.
V
LG
5V/div.
V
LG
5V/div.
V
OUT
10V/div.
I
R
2A/div.
V
OUT
10V/div.
I
R
2A/div.
V
OUT
10V/div.
I
R
2A/div.
HR1000A Rev. 1.01
www.MonolithicPower.com
8/30/2012
MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2012 MPS. All Rights Reserved.
8
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