公开(公告)号：US09077257B2

公开(公告)日：2015-07-07

申请号：US14115372

申请日：2012-05-21

Applicant: Mads Peter Frium

Inventor： Mads Peter Frium

IPC: H03F3/04 ,  H02M3/335 ,  H03F3/217 ,  H03F3/185 ,  H02M1/00

CPC classification number: H02M3/33569 ,  H02M2001/0006 ,  H03F3/185 ,  H03F3/217 ,  H03F3/2171

Abstract: A power supply arrangement for a single ended class D amplifier, including a first primary winding connected in series with a first switch between the positive supply rail and ground, a second primary winding in phase with said first primary winding and connected in series with a second switch between the negative supply rail and ground, and a controller adapted to apply a control signal to said first and second switches, said control signal (Q) having ON-pulses of a predefined pulse time separated by a dead time. In use, the primary winding connected to the supply rail with the highest numerical voltage will transform the rail voltage difference to the supply rail with the lowest numerical voltage through the opposite primary winding thus reducing any voltage unbalance between the windings.

Abstract translation: 一种用于单端D类放大器的电源装置，包括与正电源轨和地之间的第一开关串联连接的第一初级绕组，与所述第一初级绕组同相连接的第二初级绕组， 在负电源轨和地之间切换，以及控制器，适于向所述第一和第二开关施加控制信号，所述控制信号（Q）具有以死区时间分隔的预定脉冲时间的导通脉冲。 在使用中，连接到具有最高数值电压的电源轨的初级绕组将通过相对的初级绕组将轨电压差转换为具有最低数值电压的电源轨，从而减少绕组之间的任何电压不平衡。

公开(公告)号：US09030261B2

公开(公告)日：2015-05-12

申请号：US14115371

申请日：2012-06-14

Applicant: Mads Peter Frium

Inventor： Mads Peter Frium

IPC: H03F3/04 ,  H02M3/335 ,  H03F3/217 ,  H02M1/00

CPC classification number: H02M3/33576 ,  H02M3/33569 ,  H02M2001/0058 ,  H03F3/217 ,  H03F3/2173 ,  Y02B70/1491

Abstract: A power converter with positive and negative supply rail outputs for feeding a single ended class D amplifier, the converter comprising a transformer arrangement, a supply pump reduction arrangement connected between the secondary windings and the positive and negative supply rail outputs, and a boost drive mode switching arrangement. A controller is adapted to control the power converter in a negate drive mode and a boost drive mode, wherein the output voltage in the boost mode is increased by means of the transformer and the boost drive mode switching arrangement. The output voltages on the positive and negative rails can be generated at two different output voltage levels without changing the duty cycle or dead time of the control signals.

Abstract translation: 一种具有正和负电源轨输出的功率转换器，用于馈送单端D类放大器，转换器包括变压器布置，连接在次级绕组与正和负电源轨输出之间的供应泵减速装置，以及升压驱动模式 切换布置。 控制器适于在负驱动模式和升压驱动模式下控制功率转换器，其中升压模式中的输出电压通过变压器和升压驱动模式切换装置增加。 正负极轨上的输出电压可以在两个不同的输出电压电平下产生，而不会改变控制信号的占空比或死区时间。