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1. 发明申请

WO2017214027A1 DYNAMIC SHARING AVERAGE CURRENT MODE CONTROL FOR ACTIVE-RESET AND SELF-DRIVEN SYNCHRONOUS RECTIFICATION FOR POWER CONVERTERS 审中-公开
标题翻译：动态共享平均电流模式控制用于电源转换器的有源重置和自驱动同步整流
公开(公告)号：WO2017214027A1
公开(公告)日：2017-12-14
申请号：PCT/US2017/035932
申请日：2017-06-05
申请人： CRANE ELECTRONICS, INC.
发明人： LAM, Cuon , NGUYEN, Hach , NGUYEN, Khoa , ODELL, Peter , SONG, Sovann
IPC分类号： H02M3/335
CPC分类号： H02M1/00 , H02M1/36 , H02M3/285 , H02M3/33538 , H02M3/33546 , H02M3/33553 , H02M3/33569 , H02M3/33592 , H02M2001/0009 , H02M2001/0025 , H02M2001/342 , Y02B70/1475
摘要： A circuit for providing dynamic output current sharing using average current mode control for active-reset and self-driven synchronous rectification with pre-bias startup and redundancy capabilities for power converters. The circuit communicates a secondary side feedback signal to a primary side via a bidirectional magnetic communicator that also provides a secondary voltage supply. Pre-bias startup is achieved by detection of the output current direction and controlling the gate signals of synchronous rectifiers. The circuit permits dynamic current sharing via a single-control signal and automatic master converter selection and promotion.
摘要翻译：用于利用平均电流模式控制提供动态输出电流共享的电路，用于具有用于功率转换器的预偏置启动和冗余能力的主动复位和自驱动同步整流。该电路通过还提供次级电压供应的双向磁通信器将次级侧反馈信号传送到初级侧。预偏置启动是通过检测输出电流方向并控制同步整流器的栅极信号来实现的。该电路允许通过单控制信号进行动态电流共享，并自动进行主变换器的选择和推广。

2. 发明申请

WO2023038847A1 RADIATION TOLERANT GATE DRIVE SCHEME FOR ACTIVE-CLAMP RESET FORWARD TOPOLOGY WITH ACTIVE-DRIVEN SYNCHRONOUS RECTIFICATION 审中-公开
公开(公告)号：WO2023038847A1
公开(公告)日：2023-03-16
申请号：PCT/US2022/042378
申请日：2022-09-01
申请人： CRANE ELECTRONICS, INC.
发明人： LAM, Cuon , RICCHIUTI, Ryan , AHMADI, Reza , SONG, Sovann
IPC分类号： H02M1/08 , H02M1/32 , H02M3/335 , H02M7/04 , H02M7/48
摘要： A radiation tolerant gate driver for power converters with active-clamp reset and active-driven synchronous rectification uses integrated logic drivers for high efficiency and wide input range. A keep alive circuit prevents power train transistors from remaining on for extended durations after a transient or an undervoltage lockout (UVLO) event. Each of the integrated logic drivers includes two gate driver circuits, where one of the gate driver circuits uses the output of the other of the gate driver circuits as input per a logic table of the integrated logic driver, to ensure no shoot-through when the respective power train transistors are turned on and off.

3. 发明申请

WO2016010637A1 DYNAMIC MANEUVERING CONFIGURATION FOR MULTIPLE CONTROL MODES IN A UNIFIED SERVO SYSTEM 审中-公开
标题翻译：统一服务器系统中的多种控制模式的动态漫游配置
公开(公告)号：WO2016010637A1
公开(公告)日：2016-01-21
申请号：PCT/US2015/033321
申请日：2015-05-29
申请人： CRANE ELECTRONICS, INC.
发明人： LAM, Cuon , SONG, Sovann , NGUYEN, Khoa
IPC分类号： G05F1/00 , H02M1/08
CPC分类号： H02M3/156 , H02M1/32 , H02M3/33507 , H02M3/337
摘要： Systems and methods that provide control circuits having multiple sub-control inputs that control operation of a power electronics device (e.g., a power converter). Each of the multiple sub-control inputs are output from a separate sub-control circuit that includes a feedback circuit having an input tied to a common control node. The common control node is coupled to an input of a controller (e.g., a PWM controller). Outputs of each of the sub-control circuits are coupled to the common control node by a respective switch (e.g., diode, transistor, etc.) so that each of the sub-control circuits may be selectively coupled to the common control node to provide a control signal to a controller. Since components of each of the feedback compensations circuits are biased at a regulation voltage instead of a higher power supply voltage, the control circuit may switch between control modes with minimal delay.
摘要翻译：提供控制电路的系统和方法具有控制功率电子设备（例如，功率转换器）的操作的多个子控制输入。多个子控制输入中的每一个从包括具有连接到公共控制节点的输入的反馈电路的单独的子控制电路输出。公共控制节点耦合到控制器（例如，PWM控制器）的输入。每个子控制电路的输出通过相应的开关（例如，二极管，晶体管等）耦合到公共控制节点，使得每个子控制电路可以选择性地耦合到公共控制节点以提供控制器的控制信号。由于每个反馈补偿电路的组件被偏置在调节电压而不是更高的电源电压，所以控制电路可以以最小的延迟在控制模式之间切换。

4. 发明申请

WO2014039982A1 IMPEDANCE COMPENSATION FOR OPERATIONAL AMPLIFIERS USED IN VARIABLE ENVIRONMENTS 审中-公开
标题翻译：在可变环境中使用的运算放大器的阻抗补偿
公开(公告)号：WO2014039982A1
公开(公告)日：2014-03-13
申请号：PCT/US2013/058784
申请日：2013-09-09
申请人： CRANE ELECTRONICS, INC.
发明人： LAM, Cuon , KUEHNY, Jay , PERCHLIK, David
IPC分类号： H03F3/45
CPC分类号： H03F3/45 , H03F1/14 , H03F1/30 , H03F3/3069 , H03F3/4508 , H03F3/45475 , H03F3/45928 , H03F2203/45528 , H03F2203/45586 , H03F2203/45588 , H03F2203/45591
摘要： A dual compensation operational amplifier is suitable for use in an environment that experiences fluctuations in ambient energy levels. A dual compensation impedance can be determined to nullify or compensate for effects of an input offset voltage or an input bias current or both. Adjustments to the dual compensation impedance can be made based on calibration data for various environmental conditions so that the dual compensation impedance can be either pre-set for anticipated conditions in different target operational environments, or automatically adjusted in-situ. Target operational environments that may benefit from such a dual compensation impedance include remote areas that experience extreme or variable temperatures, high altitudes, space, or high radiation environments.
摘要翻译：双补偿运算放大器适用于经历环境能量波动的环境。可以确定双补偿阻抗以消除或补偿输入偏移电压或输入偏置电流或两者的影响。双补偿阻抗的调整可以基于各种环境条件的校准数据进行，从而可以将双补偿阻抗预先设定为不同目标操作环境中的预期条件，或者原位自动调整。可能受益于这种双重补偿阻抗的目标操作环境包括经历极端或可变温度，高海拔，空间或高辐射环境的远程区域。

5. 发明申请

WO2023034528A1 RADIATION TOLERANT DISCRETE REFERENCE FOR DC-DC CONVERTERS 审中-公开
公开(公告)号：WO2023034528A1
公开(公告)日：2023-03-09
申请号：PCT/US2022/042381
申请日：2022-09-01
申请人： CRANE ELECTRONICS, INC.
发明人： LAM, Cuon , SONG, Sovann
IPC分类号： G05F3/18 , H02M3/04 , H02M1/08 , H02M1/34 , H03K17/60 , H02M3/10 , H02M1/14 , H02M1/15 , H02M1/32
摘要： A radiation tolerant discrete reference voltage source includes just two bipolar junction transistors, five resistors, and a Zener diode. Two of the resistors form a voltage divider that outputs a reference voltage. Values of the resistors included in the voltage divider can be selected to output a desired reference voltage level, for example, 5.00V, 4.00V, or 2.50V, which obviates a need to procure unique voltage references for those reference voltage levels and provides design flexibility. The radiation tolerant discrete reference voltage source provides improved control over radiation hardness and does not require high gain transistors. Because relatively few, inexpensive components are used, the radiation tolerant discrete reference voltage source can be produced at a low cost.

6. 发明申请

WO2023034217A1 RADIATION TOLERANT TEMPERATURE COMPENSATED DELAYED UNDERVOLTAGE LOCKOUT AND OVERVOLTAGE SHUTDOWN 审中-公开
公开(公告)号：WO2023034217A1
公开(公告)日：2023-03-09
申请号：PCT/US2022/041901
申请日：2022-08-29
申请人： CRANE ELECTRONICS, INC.
发明人： LAM, Cuon , RICCHIUTI, Ryan , AHMADI, Reza , SONG, Sovann
IPC分类号： G05F1/567 , H02H3/087 , H02H3/12 , H02H3/40 , H02H9/04 , G05F1/571 , G05F1/573
摘要： Circuit includes a voltage-detection-path having a first transistor and a second transistor coupled to the first voltage-detection-path by a first terminal of the second transistor. The first voltage-detection-path includes: a first current source and a first voltage-divider-unit coupled to the first current source. The first transistor is coupled to the first voltage-divider-unit by a first terminal of the first transistor. A first voltage value at a second terminal of the first transistor is configured to switch between a first high voltage value and a first low voltage value at least partially based on a first detection voltage value provided at the first terminal of the first transistor by the first voltage-divider-unit. A second voltage at a second terminal of the second transistor is configured to switch between a second high voltage value and a second low voltage value at least partially based on the first voltage value at the second terminal of the first transistor.

7. 发明申请

WO2017015143A1 AUTOMATIC ENHANCED SELF-DRIVEN SYNCHRONOUS RECTIFICATION FOR POWER CONVERTERS 审中-公开
标题翻译：电力转换器自动增强自动同步整流
公开(公告)号：WO2017015143A1
公开(公告)日：2017-01-26
申请号：PCT/US2016/042582
申请日：2016-07-15
申请人： CRANE ELECTRONICS, INC.
发明人： LAM, Cuon , SONG, Sovann , NGUYEN, Khoa , CHEN, Herman
IPC分类号： H02M3/335
CPC分类号： H02M3/33546 , H02M3/33569 , H02M3/33576 , H02M3/33592 , Y02B70/1475
摘要： Systems and methods for providing a self-driven synchronous rectification circuit for an active-clamp forward converter which includes automatically enhancing synchronous MOSFETs and maximizing input voltage range. The gate signals for the synchronous MOSFETs are derived from a unipolar magnetic coupling signal instead of a bipolarized magnetic coupling signal. The unipolar signal is retained for fully enhanced driving of the MOSFETs at low line voltage and the unipolar signal is automatically converted to a bipolar signal at high line amplitude due to line variance to maximize input voltage range by utilizing non-polarized characteristics of the MOSFET gate-to-source voltage (Vgs). The circuit permits efficient scaling for higher output voltages such as 12 volts DC or 15 volts DC, without requiring extra windings on the transformer of the forward converter.
摘要翻译：提供用于有源钳位正激转换器的自驱动同步整流电路的系统和方法，其包括自动增强同步MOSFET并最大化输入电压范围。同步MOSFET的栅极信号来自单极磁耦合信号，而不是双极化磁耦合信号。保持单极性信号以在低线电压下完全增强MOSFET的驱动，并且单极性信号由于线路方差自动转换为高线幅度的双极信号，以通过利用MOSFET栅极的非偏振特性来最大化输入电压范围 - 源极电压（Vgs）。该电路可以有效地缩放更高的输出电压，例如12伏特直流或15伏特直流，而不需要正向转换器的变压器额外的绕组。

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