公开(公告)号：US11683010B2

公开(公告)日：2023-06-20

申请号：US17870856

申请日：2022-07-22

申请人： ABLIC Inc.

发明人： Manabu Fujimura

IPC分类号： H03K3/354 ,  H03B5/04 ,  H03B5/24

CPC分类号： H03B5/04 ,  H03B5/24 ,  H03K3/354

摘要： An oscillation circuit includes first and second constant current circuits, first and second switch circuits, first and second MOS transistors, and an output port. The first constant current circuit is connected to one port of a capacitor. The first MOS transistor has a gate and a drain connected to the second constant current circuit and a source connected to another port of the capacitor. The second MOS transistor has a gate connected to the gate of the first MOS transistor, and a drain connected to the one port of the capacitor. The second switch circuit is connected between a source of the second MOS transistor and a second power supply terminal. The output port outputs a signal based on a voltage of the one port. Turn-on and turn-off of the first and second switch circuits are controlled by the signal of the output port and an inverted signal.

公开(公告)号：US20220329204A1

公开(公告)日：2022-10-13

申请号：US17620494

申请日：2020-06-15

申请人： LAPIS SEMICONDUCTOR CO., LTD.

发明人： KOKI NAKANISHI

IPC分类号： H03B5/32 ,  H03H7/01 ,  H03K3/354

摘要： There is provided a semiconductor device comprising: a first inverter circuit (11) connected in parallel to a crystal vibrating element (X1); a second inverter circuit (12) connected to the first inverter circuit (11) so as to share an input therewith, and outputting an oscillation signal; and a wave filter (14) connected to the second inverter circuit (12) and having a passband that is determined in advance and includes an oscillation frequency of the oscillation signal.

公开(公告)号：US20200249271A1

公开(公告)日：2020-08-06

申请号：US16265661

申请日：2019-02-01

申请人： Intel Corporation

发明人： Suriya Ashok Kumar ,  Ketul B. Sutaria ,  Stephen M. Ramey

IPC分类号： G01R31/28 ,  H01L27/092 ,  H03K3/354 ,  H03K21/38 ,  G01R31/00

摘要： Various embodiments provide a health monitor circuit including an n-type sensor to determine a first health indicator associated with n-type transistors of a circuit block and a p-type sensor to determine a second health indicator associated with p-type transistors of the circuit block. The n-type sensor and p-type sensor may be on a same die as the circuit block. The health monitor circuit may further include a control circuit to adjust one or more operating parameters, such as operating voltage and/or operating frequency, for the circuit block based on the first and second health indicators. Other embodiments may be described and claimed.

公开(公告)号：US10720418B2

公开(公告)日：2020-07-21

申请号：US16495564

申请日：2017-09-12

申请人： HITACHI AUTOMOTIVE SYSTEMS, LTD.

发明人： Yoshimitsu Yanagawa ,  Yoshikazu Nara ,  Masahiro Matsumoto ,  Hiroshi Nakano ,  Akira Kotabe

IPC分类号： H01L27/01 ,  H01L49/02 ,  H01L27/08 ,  H01L27/10 ,  H03K3/011 ,  H03K3/354 ,  H03K4/52 ,  H03B5/24

摘要： A resistance circuit is configured such that a P-type resistance section and an N-type resistance section are electrically connected in series, the P-type resistance section is configured with P-type diffusion layer resistance elements that are disposed to form a right angle with respect to each other and that are electrically connected in series, and the N-type resistance section is configured with N-type diffusion layer resistance elements that are disposed to form the right angle with respect to each other and that are electrically connected in series. Furthermore, the P-type diffusion layer resistance element is disposed along a orientation direction of a semiconductor substrate, and the N-type diffusion layer resistance element is disposed along a orientation direction of the semiconductor substrate. It is thereby possible to provide the resistance circuit, an oscillation circuit, and an in-vehicle sensor apparatus that reduce stress-induced characteristic fluctuations.

公开(公告)号：US10554199B2

公开(公告)日：2020-02-04

申请号：US15718841

申请日：2017-09-28

申请人： Marshall Soares ,  Richard N. Rea

发明人： Marshall Soares ,  Richard N. Rea

IPC分类号： H03K3/03 ,  H03K3/354 ,  H03K3/011 ,  H03K3/012 ,  H03K3/013

摘要： A current-mode, multi-stage oscillator converts an oscillating current to an oscillating voltage using one or more current voltage converters on one or more of the output stages of the multi-stage oscillator. The use of current voltage convertors transforms the low output swing (e.g., transistor threshold limited) of the oscillator into a rail-to-rail voltage oscillation with minimal jitter and operational stability over a wide temperature range.

公开(公告)号：US10141914B2

公开(公告)日：2018-11-27

申请号：US15253512

申请日：2016-08-31

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Chen Kong Teh

IPC分类号： H03K3/011 ,  H03K3/03 ,  H03K3/0231 ,  H03L1/02 ,  H03K3/354

摘要： An oscillation circuit includes a delay circuit that includes a first inverter having an input terminal connected to a first node, a delay adjustment circuit including first and second current supply paths through which the first node is charged in response to an output signal of the delay circuit. During charging of the first node, a current with positive temperature characteristics is supplied to the first node through the first current supply path, and a current with negative temperature characteristics is supplied to the first node through the second current supply path.

公开(公告)号：US09954486B2

公开(公告)日：2018-04-24

申请号：US15013649

申请日：2016-02-02

申请人： International Business Machines Corporation

发明人： Herschel A. Ainspan ,  Mark A. Ferriss ,  Daniel J. Friedman ,  Alexander V. Rylyakov ,  Bodhisatwa Sadhu ,  Alberto Valdes-Garcia

IPC分类号： H03B5/08 ,  H03B5/12 ,  H03K3/354 ,  H03K5/04 ,  H03L7/199 ,  H03L7/089 ,  H03B1/00 ,  H03H11/04 ,  H03L7/093 ,  H03L7/099 ,  H03L7/10 ,  H03H19/00 ,  H03L7/18

CPC分类号： H03B5/1228 ,  H03B1/00 ,  H03B5/1212 ,  H03B5/1215 ,  H03B5/124 ,  H03B5/1243 ,  H03B5/1265 ,  H03H11/04 ,  H03H19/006 ,  H03J2200/10 ,  H03K3/354 ,  H03K5/04 ,  H03L7/0898 ,  H03L7/093 ,  H03L7/099 ,  H03L7/0992 ,  H03L7/10 ,  H03L7/18 ,  H03L7/199 ,  H03L2207/06

摘要： An apparatus comprises a digitally controlled circuit having a variable capacitance and a controller configured to adjust a magnitude of the variable capacitance of the digitally controlled circuit. The digitally controlled circuit comprises a plurality of gain elements, the plurality of gain elements comprising one or more positive voltage-to-frequency gain elements and one or more negative voltage-to-frequency gain elements. The controller is configured to adjust the magnitude of the capacitance by adjusting the gain provided by respective ones of the gain elements in an alternating sequence of the positive voltage-to-frequency gain elements and the negative voltage-to-frequency gain elements.

公开(公告)号：US20160126959A1

公开(公告)日：2016-05-05

申请号：US14829657

申请日：2015-08-19

申请人： Novatek Microelectronics Corp.

发明人： Chih-Hsiang Chang ,  Chih-Hung Chen

IPC分类号： H03L1/02 ,  H03K3/354

CPC分类号： H03L1/022 ,  H03B5/04 ,  H03B5/1215 ,  H03B5/1225 ,  H03B5/1228 ,  H03B5/1237 ,  H03B5/1271 ,  H03B5/1296 ,  H03B2200/0038 ,  H03L1/00

摘要： An oscillator configured to generate an oscillation signal is provided. The oscillator includes a transistor pair and a cross-coupled transistor pair. The transistor pair is coupled to a first current source and has a first transconductance. The first transconductance is changed in response to a current value of the first current source. The cross-coupled transistor pair is coupled to a second current source and has a second transconductance. The second transconductance is changed in response to a current value of second current source. The transistor pair and the cross-coupled transistor pair are mutually coupled by a plurality of inductors. A frequency of the oscillation signal is determined according to the first transconductance and the second transconductance. Furthermore, a clock generator and a method for generating a clock signal thereof are also provided.

摘要翻译： 提供了一种配置成产生振荡信号的振荡器。 振荡器包括晶体管对和交叉耦合晶体管对。 晶体管对耦合到第一电流源并且具有第一跨导。 第一跨导响应于第一电流源的当前值而改变。 交叉耦合晶体管对耦合到第二电流源并具有第二跨导。 第二跨导响应于第二电流源的当前值而改变。 晶体管对和交叉耦合晶体管对由多个电感器相互耦合。 根据第一跨导和第二跨导来确定振荡信号的频率。 此外，还提供了时钟发生器和用于产生其时钟信号的方法。

公开(公告)号：US08970313B2

公开(公告)日：2015-03-03

申请号：US13644490

申请日：2012-10-04

申请人： Dialog Semiconductor GmbH

发明人： Tim Morris

IPC分类号： H03K3/0231 ,  H03K3/354

CPC分类号： H03K3/0231 ,  H03K3/354 ,  H03K4/502

摘要： Methods and circuits for CMOS relaxation oscillators are disclosed. A single capacitive element, a single current source and a switching network are utilized. A switching network of the oscillator allows both nodes of the capacitive element to rise and fall between a positive and a negative voltage with respect to ground supply, without causing leakage to substrate or risk of latch-up, i.e. the inadvertent creation of a low-impedance path. The oscillator requires minimum silicon area, has an improved duty cycle, is particular useful for implementing lower frequency clocks and is enabled for smaller technology nodes, lower than 250 nm, due to lower supply voltage.

摘要翻译： 公开了用于CMOS弛豫振荡器的方法和电路。 使用单个电容元件，单个电流源和开关网络。 振荡器的开关网络允许电容元件的两个节点在相对于地电源的正电压和负电压之间上升和下降，而不会导致衬底泄漏或闭锁的风险，即无意中产生低电压， 阻抗路径。 振荡器需要最小的硅面积，具有改进的占空比，对于实现较低频率时钟特别有用，并且由于较低的电源电压而能够用于低于250nm的较小技术节点。

公开(公告)号：US08860517B2

公开(公告)日：2014-10-14

申请号：US13524510

申请日：2012-06-15

申请人： Mauro Giacomini

发明人： Mauro Giacomini

IPC分类号： H03K3/0231 ,  H03K3/354 ,  H03K3/011

CPC分类号： H03K3/0231 ,  H03K3/011 ,  H03K3/354 ,  H03K4/501

摘要： An oscillator circuit including a first capacitor provided with a first terminal; a resistor provided with a reference terminal; a first current generator provided with a connection terminal; a second current generator provided with a second connection terminal. Further, the circuit includes a switching matrix between the first and second generators and resistor and the at least one first capacitor.

摘要翻译： 一种振荡器电路，包括设置有第一端子的第一电容器; 具有参考端子的电阻器; 设置有连接端子的第一电流发生器; 具有第二连接端子的第二电流发生器。 此外，电路包括在第一和第二发生器与电阻器和至少一个第一电容器之间的开关矩阵。