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1. 发明授权

US07800928B1 Method of operating a resonant inverter using zero current switching and arbitrary frequency pulse width modulation 有权
标题翻译：使用零电流切换和任意频率脉宽调制操作谐振逆变器的方法
公开(公告)号：US07800928B1
公开(公告)日：2010-09-21
申请号：US11951969
申请日：2007-12-06
申请人： John Jay Dernovsek , Steve Mays
发明人： John Jay Dernovsek , Steve Mays
IPC分类号： H02M7/5387 , H02M3/24
CPC分类号： H02M7/523
摘要： A method of controlling a series-resonant, half-bridge inverter includes turning off the bottom switch and turning on the top switch the inverter when the current through the resonant inductor crosses the zero axis while the current is increasing, thereby insuring zero voltage switching of the inverter switches and increases the overall switching period so that the actual inverter frequency is closer to the resonant frequency of the series-resonant circuit. Using an on-time control circuit, the method further includes controlling the current delivered to the load (such as a gas discharge lamp) by varying the on-time of the top inverter switch.
摘要翻译：一种控制串联谐振半桥逆变器的方法包括当电流通过谐振电感器穿过零轴而电流增加时，关闭底部开关并接通顶部开关，使逆变器开启，从而确保零电压切换逆变器开关并增加整个开关周期，使实际的变频器频率更接近串联谐振电路的谐振频率。使用导通时间控制电路，该方法还包括通过改变顶部逆变器开关的接通时间来控制传送到负载（例如气体放电灯）的电流。

2. 发明授权

US08680776B1 Lighting device including a fast start circuit for regulating power supply to a PFC controller 有权
标题翻译：照明装置包括用于调节对PFC控制器的电源的快速启动电路
公开(公告)号：US08680776B1
公开(公告)日：2014-03-25
申请号：US13332357
申请日：2011-12-20
申请人： Steve Mays , Philip Walker
发明人： Steve Mays , Philip Walker
IPC分类号： H05B41/16
CPC分类号： H05B33/0815 , H02M1/36 , H02M1/4225 , Y02B70/126
摘要： A lighting device such as an electronic ballast or LED driver includes a power factor correction (PFC) controller responsive to input power supply signals to generate control signals, a PFC boost converter responsive to said control signals to generate a boosted output voltage, and a fast start circuit with a power supply source and an energy storage device, a magnitude of the input power supply signal corresponding to energy stored in the energy storage device. During a first mode, the fast start circuit responds to a rectified mains input to enable the power supply source and charge the energy storage device. During a second mode, the fast start circuit responds to a magnitude of the power supply signal to disable the power supply source and discharge the energy storage device. The boost converter during the second operating mode maintains controller operation while the power supply source is disabled.
摘要翻译：诸如电子镇流器或LED驱动器的照明装置包括响应于输入电源信号以产生控制信号的功率因数校正（PFC）控制器，响应于所述控制信号产生升压输出电压的PFC升压转换器，以及快速与电源和能量存储装置的启动电路，输入电源信号的大小对应于存储在能量存储装置中的能量。在第一模式期间，快速启动电路响应经整流的电源输入，以使能电源并对能量存储装置充电。在第二模式期间，快速启动电路响应电源信号的大小以禁用电源并对能量存储装置进行放电。在第二种操作模式下，升压转换器在电源被禁用的同时保持控制器运行。

3. 发明授权

US08232727B1 Ballast circuit for a gas-discharge lamp having a filament drive circuit with monostable control 有权
标题翻译：用于具有单稳态控制的灯丝驱动电路的气体放电灯的镇流器电路
公开(公告)号：US08232727B1
公开(公告)日：2012-07-31
申请号：US12685969
申请日：2010-01-12
申请人： Steve Mays
发明人： Steve Mays
IPC分类号： H01J13/46
CPC分类号： H05B41/295
摘要： An electronic ballast circuit includes a filament drive circuit that can adjust the pulse width of a pulsed heating signal in accordance with the lamp current to a gas-discharge lamp. A logic device, such as an SR flip-flop, is used to control a switch that is coupled to the primary winding of a filament drive transformer coupled to the lamp filaments. The logic device opens and closes the switch device to generate the pulses of the pulsed heating signal and thus controls the pulse width of the pulses. A clock signal triggers logic device to start a pulse while the end of the pulse is determined by a signal level across a resistor in series with the primary winding of filament drive transformer. Once this signal level is at or above a threshold level, logic device switches the switch device to end the pulse.
摘要翻译：电子镇流器电路包括灯丝驱动电路，其可以根据灯电流调节脉冲加热信号的脉冲宽度到气体放电灯。诸如SR触发器的逻辑器件用于控制耦合到耦合到灯丝的灯丝驱动变压器的初级绕组的开关。逻辑器件打开和关闭开关器件以产生脉冲加热信号的脉冲，从而控制脉冲的脉冲宽度。时钟信号触发逻辑器件以启动脉冲，同时脉冲的结束由与灯丝驱动变压器的初级绕组串联的电阻器上的信号电平确定。一旦该信号电平处于或高于阈值电平，则逻辑器件切换开关器件以结束脉冲。

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