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Evaluation Board User Guide
PWM SETTINGS
The ADP1046 has a fully programmable PWM setup that
controls seven PWMs. Due to this flexibility, the IC can
function in several different topologies, such as any isolated
buck derived topology, push-pull, and flyback.
The integrated volt-second balance feature is used as a current
balancer of the two phases of the interleaved two-switch
forward design. In other power conversion circuits such as full
bridge, this feature can be used to eliminate the dc blocking
capacitor.
Each PWM edge can be moved in 5 ns steps to achieve the
appropriate dead time needed, and the maximum modulation
limit sets the maximum duty cycle. This is displayed in Figure 13.
UG-320
Click the Monitor tab and then PWM & SR Settings to access
the PWM settings
Table 5. PWMs and Their Corresponding Switching Element
PWM Switching Element Being Controlled
OUTA Phase 1 primary switches
OUTB Phase 1 synchronous rectifier
OUTC Phase 1 freewheeling
OUTD Phase 2 primary switches
SR1 Phase 2 synchronous rectifier
SR2 Phase 2 freewheeling
OUTAUX Fan control
Figure 13. PWM Settings Window in the GUI
Rev. A | Page 15 of 48
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ADP1046A-100-EVALZ 功能描述:电源管理IC开发工具 RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V
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