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公开(公告)号：US08970198B2
公开(公告)日：2015-03-03
申请号：US13855482
申请日：2013-04-02
Applicant: Delta Electronics, Inc.
Inventor： Laszlo Huber , Milan Jovanovic , Chien-Chung Chang
Abstract: A power supply having an input and an output, includes a power converter coupled between the input and output of the power supply including at least one switch that is controlled by comparing a sensed voltage, the sensed voltage corresponding to a current flowing through the switch, to a reference voltage. A controller, in response to a change detected in a switching frequency of the switch, reduces audible noise generated by the power supply by at least one of: adjusting the reference voltage; adjusting the current sense voltage; or adjusting a resistance used to generate the sensed voltage.
Abstract translation: 具有输入和输出的电源包括耦合在电源的输入和输出之间的功率转换器，其包括至少一个开关，所述至少一个开关通过比较感测的电压，对应于流过开关的电流的感测电压， 到参考电压。 控制器响应于在开关的开关频率中检测到的变化，通过以下至少一个来降低由电源产生的可听噪声：调整参考电压; 调整电流检测电压; 或调整用于产生感测电压的电阻。
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公开(公告)号：US20130293206A1
公开(公告)日：2013-11-07
申请号：US13855482
申请日：2013-04-02
Applicant: Delta Electronics, Inc.
Inventor： Laszlo Huber , Milan Jovanovic , Chien-Chung Chang
IPC: H02M3/158
Abstract: A power supply having an input and an output, includes a power converter coupled between the input and output of the power supply including at least one switch that is controlled by comparing a sensed voltage, the sensed voltage corresponding to a current flowing through the switch, to a reference voltage. A controller, in response to a change detected in a switching frequency of the switch, reduces audible noise generated by the power supply by at least one of: adjusting the reference voltage; adjusting the current sense voltage; or adjusting a resistance used to generate the sensed voltage.
Abstract translation: 具有输入和输出的电源包括耦合在电源的输入和输出之间的功率转换器，其包括至少一个开关，所述至少一个开关通过比较感测的电压，对应于流过开关的电流的感测电压， 到参考电压。 控制器响应于在开关的开关频率中检测到的变化，通过以下至少一个来降低由电源产生的可听噪声：调整参考电压; 调整电流检测电压; 或调整用于产生感测电压的电阻。
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