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1. 发明授权

US08773084B2 Buck-boost converter using timers for mode transition control 有权
标题翻译：降压 - 升压转换器使用定时器进行模式转换控制
公开(公告)号：US08773084B2
公开(公告)日：2014-07-08
申请号：US13277559
申请日：2011-10-20
申请人： Charles A. Casey , David Dearn
发明人： Charles A. Casey , David Dearn
IPC分类号： G05F1/24 , G05F3/16
CPC分类号： H02M3/1582
摘要： A DC-to-DC, buck-boost voltage converter includes a duty cycle controller configured to generate control signals for a buck driver configured to drive first and second buck switching transistors at a buck duty cycle and to generate control signals for a boost driver configured to drive first and second boost switching transistors at a boost duty cycle. The duty cycle controller includes at least a duty cycle timer and an offset timer where the duty cycle controller applies the duty cycle timer and the offset timer to control transitions between the buck, the buck-boost and the boost operation modes of the voltage converter.
摘要翻译： DC-DC降压升压电压转换器包括占空比控制器，其被配置为产生用于降压驱动器的控制信号，所述降压驱动器被配置为以降压占空比驱动第一和第二降压开关晶体管，并且为配置的升压驱动器生成控制信号以升压占空比驱动第一和第二升压开关晶体管。占空比控制器至少包括占空比定时器和偏移定时器，其中占空比控制器施加占空比定时器和偏移定时器来控制电压转换器的降压，降压 - 升压和升压操作模式之间的转换。

2. 发明申请

US20120032658A1 Buck-Boost Converter Using Timers for Mode Transition Control 有权
标题翻译：降压升压转换器使用定时器进行模式转换控制
公开(公告)号：US20120032658A1
公开(公告)日：2012-02-09
申请号：US13277559
申请日：2011-10-20
申请人： Charles A. Casey , David Dearn
发明人： Charles A. Casey , David Dearn
IPC分类号： G05F1/56
CPC分类号： H02M3/1582
摘要： A DC-to-DC, buck-boost voltage converter includes a duty cycle controller configured to generate control signals for a buck driver configured to drive first and second buck switching transistors at a buck duty cycle and to generate control signals for a boost driver configured to drive first and second boost switching transistors at a boost duty cycle. The duty cycle controller includes at least a duty cycle timer and an offset timer where the duty cycle controller applies the duty cycle timer and the offset timer to control transitions between the buck, the buck-boost and the boost operation modes of the voltage converter.
摘要翻译： DC-DC降压升压电压转换器包括占空比控制器，其被配置为产生用于降压驱动器的控制信号，所述降压驱动器被配置为以降压占空比驱动第一和第二降压开关晶体管，并且为配置的升压驱动器生成控制信号以升压占空比驱动第一和第二升压开关晶体管。占空比控制器至少包括占空比定时器和偏移定时器，其中占空比控制器施加占空比定时器和偏移定时器来控制电压转换器的降压，降压 - 升压和升压操作模式之间的转换。

3. 外观设计

USD252013S Bolt 失效
公开(公告)号：USD252013S
公开(公告)日：1979-06-05
申请号：US776111
申请日：1977-03-10
申请人： Charles A. Casey
设计人： Charles A. Casey

4. 发明授权

US08633734B2 Bi-directional comparator 有权
标题翻译：双向比较器
公开(公告)号：US08633734B2
公开(公告)日：2014-01-21
申请号：US13517587
申请日：2012-06-13
申请人： Charles A. Casey , Richard Zhu , Cameron Jackson
发明人： Charles A. Casey , Richard Zhu , Cameron Jackson
IPC分类号： H03K5/22
CPC分类号： H03K5/24
摘要： A bi-directional comparator compares two input signals and applies a hysteresis level to the smaller input signal only after the output signal switches logical states and when the two input signals are within a predetermined range of each other. In one embodiment, the hysteresis applied to the smaller input signal is removed when the two input signals are no longer within the predetermined range of each other.
摘要翻译：双向比较器比较两个输入信号，并且仅在输出信号切换逻辑状态之后以及当两个输入信号在彼此的预定范围内时才向较小输入信号施加滞后电平。在一个实施例中，当两个输入信号不再在彼此的预定范围内时，施加到较小输入信号的滞后被去除。

5. 发明授权

US07898830B1 System and method of controlling the soft start control voltage of switching regulator in response to output current sensing 有权
标题翻译：响应于输出电流检测来控制开关稳压器的软启动控制电压的系统和方法
公开(公告)号：US07898830B1
公开(公告)日：2011-03-01
申请号：US12144942
申请日：2008-06-24
申请人： Charles A. Casey , Federico Piccitto , Paolo Nora , Marcello Criscione
发明人： Charles A. Casey , Federico Piccitto , Paolo Nora , Marcello Criscione
IPC分类号： H02H7/10
CPC分类号： H02M1/36 , H02M1/32 , H02M3/156 , Y10S323/901
摘要： An apparatus, such as a Buck converter system, for generating an output voltage while at the same time monitoring whether an overload or over current condition occurs at the output, and protecting the system if the overload or over current condition occurs. The apparatus includes a first circuit adapted to monotonically change a control voltage from a first voltage (e.g., approximately ground potential) towards a second voltage (e.g., a reference voltage VREF); a second circuit adapted to generate the output voltage based on the control voltage; a third circuit adapted to detect whether a magnitude of an output current exceeds a current threshold; and a fourth circuit adapted to change the control voltage from the second voltage towards the first voltage in response to the third circuit detecting that the magnitude of the output current exceeds the current threshold.
摘要翻译：一种诸如Buck转换器系统的装置，用于产生输出电压，同时监视在输出端是否发生过载或过电流状况，并且如果发生过载或过电流状况，则保护系统。该装置包括适于将控制电压从第一电压（例如，大约接地电位）单调地改变到第二电压（例如，参考电压VREF）的第一电路; 第二电路，适于基于所述控制电压产生所述输出电压; 第三电路，适于检测输出电流的大小是否超过电流阈值; 以及第四电路，其适于响应于所述第三电路检测到所述输出电流的大小超过所述电流阈值，将所述控制电压从所述第二电压改变为所述第一电压。

6. 发明授权

US06998828B2 Low audible noise power supply controller and method therefor 有权
标题翻译：低噪声电源控制器及其方法
公开(公告)号：US06998828B2
公开(公告)日：2006-02-14
申请号：US10810864
申请日：2004-03-29
申请人： Charles A. Casey , Daniel Connolly , Brant Johnson
发明人： Charles A. Casey , Daniel Connolly , Brant Johnson
IPC分类号： G05F1/44
CPC分类号： H02M3/156
摘要： In one embodiment, a power supply controller of a power supply system uses an algorithm to reduce the number of drive pulses to the output transistors under light load conditions. The algorithm groups the drive pulses to the output transistors into sets and removes some of the drive pulses for each set drive pulses issued by the controller. Each successive set removes additional drive pulses.
摘要翻译：在一个实施例中，供电系统的电源控制器使用一种算法来在轻负载条件下减少输出晶体管的驱动脉冲数。该算法将输出晶体管的驱动脉冲组合成组，并且去除由控制器发出的每组设置的驱动脉冲的一些驱动脉冲。每个连续的设置去除额外的驱动脉冲。

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