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    • 3. 发明授权
    • Apparatus and methods for power conversion
    • 电源转换装置及方法
    • US07903442B2
    • 2011-03-08
    • US11565620
    • 2006-11-30
    • Brent McDonaldBrian P. Johnson
    • Brent McDonaldBrian P. Johnson
    • H02M7/155
    • H02M7/217
    • An alternating current (AC) to direct current (DC) power converter comprises a first electrical path in a primary circuit having an inductor coupled in series with a first primary winding and a first switch to a ground connection. A second electrical path in the primary circuit has the inductor coupled in series with a second primary winding and a second switch to the ground connection. A secondary circuit is electromagnetically coupled to the primary circuit. A controller operates the first switch and the second switch in a predetermined manner to induce a current in the secondary circuits.
    • 直流(DC)功率转换器的交流电(AC)包括在初级电路中的第一电路,其具有与第一初级绕组串联耦合的电感器和与接地连接的第一开关。 初级电路中的第二电路具有与第二初级绕组串联的电感器和与接地连接的第二开关。 次级电路与主电路电磁耦合。 控制器以预定方式操作第一开关和第二开关以在次级电路中感应电流。
    • 7. 发明申请
    • POWER SUPPLY CONVERTER AND METHOD
    • 电源转换器及方法
    • US20110148377A1
    • 2011-06-23
    • US12641173
    • 2009-12-17
    • Tod SchiffBrian P. Johnson
    • Tod SchiffBrian P. Johnson
    • G05F1/10
    • H02M3/1588Y02B70/1466
    • A power supply converter and a method for adjusting a threshold voltage in the power supply converter. The circuit includes first and second switches having current conducting terminals commonly connected together to form a node. An energy storage element may be connected to the node and a zero current detection comparator may be connected to the node. A first voltage may be provided at the control terminal of the first switch that turns it off. After the first switch is off, determining whether the first switch turned off before or after the current in the energy storage element has reached zero. This may be accomplished by determining whether the voltage at the first node is positive or negative. If the voltage at the first node is negative, the threshold voltage is increased and if the voltage at the first node is positive the threshold voltage is decreased.
    • 电源转换器和用于调整电源转换器中的阈值电压的方法。 该电路包括具有通常连接在一起以形成节点的电流导电端子的第一和第二开关。 能量存储元件可以连接到节点,并且零电流检测比较器可以连接到节点。 可以在第一开关的控制端子处提供第一电压,使其断开。 在第一开关断开之后,确定在能量存储元件中的电流之前或之后关闭第一开关是否已经达到零。 这可以通过确定第一节点处的电压是正还是负来实现。 如果第一节点处的电压为负,则阈值电压增加,如果第一节点处的电压为正,则阈值电压降低。