专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20150295738A1 COMMUNICATION SYSTEM 有权
标题翻译：通讯系统
公开(公告)号：US20150295738A1
公开(公告)日：2015-10-15
申请号：US14669093
申请日：2015-03-26
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Hiroyuki MORI , Keiji SHIGEOKA , Hideki KASHIMA , Tomohisa KISHIGAMI
IPC分类号： H04L25/49 , H04B3/54
CPC分类号： H04L25/4902 , H04B3/54
摘要： Each of nodes in a communication system includes a pull-up circuit connected between a power source and a transmission line and a switching portion connecting and disconnecting the transmission line and a ground line. One of the nodes is a master node, and the others of the nodes are slave nodes. The driver circuits are driven so that the master node constantly outputs the transmission code of logic 1 and the slave node outputting the transmission code of logic 0 extends the width of the low level of the transmission code of logic 1 on the transmission line. The master node further includes a current limiting section limiting an electric current that flows to the transmission line via the pull-up circuit based on at least a signal level of the transmission line.
摘要翻译：通信系统中的每个节点包括连接在电源和传输线之间的上拉电路以及连接和断开传输线和接地线的切换部分。其中一个节点是主节点，其他节点是从节点。驱动电路被驱动，使得主节点不断输出逻辑1的发送代码，并且输出逻辑0的发送代码的从节点在传输线上扩展逻辑1的发送代码的低电平的宽度。主节点还包括电流限制部分，其基于至少传输线的信号电平，限制经由上拉电路流到传输线的电流。

2. 发明申请

US20160036604A1 SIGNAL TRANSMISSION CIRCUIT 有权
标题翻译：信号传输电路
公开(公告)号：US20160036604A1
公开(公告)日：2016-02-04
申请号：US14812447
申请日：2015-07-29
申请人： DENSO CORPORATION , NIPPON SOKEN, INC.
发明人： Hiroyuki MORI , Keiji SHIGEOKA , Yoshifumi KAKU , Shogo AKASAKI
IPC分类号： H04L25/02
CPC分类号： H04L25/0278 , H04L25/029 , H04L25/0292
摘要： A signal transmission circuit includes a transceiver, an impedance adjustment circuit, a first control circuit and a second control circuit. The impedance adjustment circuit realizes a low impedance state and a normal state of the transmission line. The first control circuit controls the impedance adjustment circuit to realize the low impedance state for a fixed period that is shorter than a width of one bit, when a change of a signal level on the transmission line is detected. The second control circuit controls the impedance adjustment circuit according to a transmission data transmitted from the transceiver, when detecting that a communication frame wins an arbitration by comparing the transmission data and the received data, to realize the low impedance state in an entire period where the signal level on the transmission line is recessive until transmission of the communication frame ends.
摘要翻译：信号传输电路包括收发器，阻抗调节电路，第一控制电路和第二控制电路。阻抗调整电路实现传输线的低阻抗状态和正常状态。当检测到传输线上的信号电平的变化时，第一控制电路控制阻抗调节电路实现比一个位的宽度短的固定周期的低阻抗状态。第二控制电路根据从收发器发送的发送数据来控制阻抗调整电路，当检测到通信帧通过比较发送数据和接收到的数据而获得仲裁时，在整个周期内实现低阻抗状态传输线上的信号电平是隐性的，直到通信帧的传输结束为止。

3. 发明申请

US20140062558A1 CURRENT MODE CONTROLLED POWER CONVERTER 有权
标题翻译：电流模式控制电源转换器
公开(公告)号：US20140062558A1
公开(公告)日：2014-03-06
申请号：US14015480
申请日：2013-08-30
申请人： DENSO CORPORATION
发明人： Hirofumi KINJOU , Yuji HAYASHI , Keiji SHIGEOKA , Kimikazu NAKAMURA
IPC分类号： H03K5/12
CPC分类号： H03K5/12
摘要： A current mode controlled power converter controllable in a digitally processing current mode even during an on time. In the power converter, each control period based on a reference signal includes a slope calculation period in which a slope compensation signal for the control period is calculated by a slope compensation unit. During each slope calculation period, the slope compensation unit negates the slope compensation signal calculated previous to the control period including the slope calculation period, and a reset signal generation unit compares a current detection signal detected by a current detection unit with a current instruction set to an error signal generated by an error signal generation unit to generate a reset signal.
摘要翻译：电流模式控制功率转换器，即使在接通时间也可以数字处理电流模式控制。在功率转换器中，基于参考信号的每个控制周期包括斜率计算周期，其中通过斜率补偿单元计算用于控制周期的斜率补偿信号。在每个斜率计算周期期间，斜率补偿单元否定在包括斜率计算周期的控制周期之前计算的斜率补偿信号，并且复位信号生成单元将由电流检测单元检测的电流检测信号与当前指令集相比较由误差信号产生单元产生的产生复位信号的误差信号。

4. 发明申请

US20130336014A1 ELECTRIC POWER CONVERSION CIRCUIT 有权
标题翻译：电力转换电路
公开(公告)号：US20130336014A1
公开(公告)日：2013-12-19
申请号：US13845963
申请日：2013-03-18
申请人： DENSO CORPORATION
发明人： Hirofumi KINJOU , Keiji SHIGEOKA , Yuji HAYASHI , Kenji TOMITA , Kimikazu NAKAMURA
IPC分类号： H02M3/335
CPC分类号： H02M3/33507 , H02M3/3376 , H02M7/53871
摘要： A DC-DC converter generates PWM signals PWM1H, PWM1L on the basis of a reference signal CLK1 to drive switching elements connected in series. When generating a reset signal RST, the converter generates PWM signals PWM2H, PWM2L on the basis of the reset signal RST. When generating no reset signal, the converter generates the PWM signals PWM2H, PWM2L on the basis of a reference signal CLK2 in order to drive other switching elements connected in series. The converter generates the reset signal RST at an optional timing to the reference signal CLK1. The reference signal CLK2 is brought forward from the reference signal CLK1 by ΔT1. The PWM signals PWM1H, PWM1L are different in timing from the PWM signals PWM2H, PWM2L. This makes it possible to avoid the switching elements diagonally arranged from being simultaneously turned on and off, and suppress a switching loss, and to increase an efficiency of the converter.
摘要翻译： DC-DC转换器基于参考信号CLK1产生PWM信号PWM1H，PWM1L，以驱动串联连接的开关元件。当产生复位信号RST时，转换器基于复位信号RST产生PWM信号PWM2H，PWM2L。当不产生复位信号时，转换器基于参考信号CLK2产生PWM信号PWM2H，PWM2L，以驱动串联连接的其它开关元件。转换器在参考信号CLK1的可选定时产生复位信号RST。参考信号CLK2从参考信号CLK1提前DeltaT1。 PWM1H，PWM1L的PWM信号与PWM2H，PWM2L的PWM信号的时序不同。这使得可以避免对角线布置的同时导通和截止的开关元件，并且抑制开关损耗，并且提高转换器的效率。

5. 发明申请

US20130300397A1 POWER CONVERTER 有权
标题翻译：电源转换器
公开(公告)号：US20130300397A1
公开(公告)日：2013-11-14
申请号：US13743745
申请日：2013-01-17
申请人： DENSO CORPORATION
发明人： Hirofumi KINJO , Keiji SHIGEOKA , Yuji HAYASHI , Kimikazu NAKAMURA
IPC分类号： H02J1/02 , H02M3/24 , B60R16/03
CPC分类号： H02M3/24 , B60R16/03 , H02M3/33507 , H02M3/3376
摘要： In a power converter, a reference signal generator generates a reference signal with a predetermined period. A current detector detects a current flowing in the converter. When a value of the detected current is larger than a value of a predetermined current command, a reset signal generator generates a reset signal. A driving unit drives a switch. The switch is turned on, and subsequently is turned off: (i) in synchronization with the reference signal when the reset signal is not outputted before the reference signal is outputted; and (ii) in synchronization with the reset signal when the reset signal is outputted before the reference signal is outputted. However, the switch is turned off in synchronization with the reset signal during a predetermined time including a first predetermined time before an output timing of the reference signal and a second predetermined time after the output timing of the reference signal.
摘要翻译：在功率转换器中，参考信号发生器产生具有预定周期的参考信号。电流检测器检测在转换器中流动的电流。当检测电流的值大于预定电流指令的值时，复位信号发生器产生复位信号。驱动单元驱动开关。开关导通，随后断开：（i）在参考信号输出之前不输出复位信号时与参考信号同步; 以及（ii）当在输出参考信号之前输出复位信号时与复位信号同步。然而，在包括参考信号的输出定时之前的第一预定时间和参考信号的输出定时之后的第二预定时间的预定时间期间，开关与复位信号同步地被关闭。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式