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1. 发明授权

US12019124B2 Charge measurement calibration in a system using a pulse frequency modulated DC-DC converter 有权
公开(公告)号：US12019124B2
公开(公告)日：2024-06-25
申请号：US17215723
申请日：2021-03-29
申请人： Silicon Laboratories Inc.
发明人： Jeffrey L. Sonntag , Timothy J. Dupuis , Jinwen Xiao
IPC分类号： G01R31/387 , G01R31/3832 , G01R31/385
CPC分类号： G01R31/387 , G01R31/3833 , G01R31/385
摘要： A calibration current load is selectively coupled to an output of a pulse frequency modulated (PFM) DC-DC converter during a calibration operation to increase charge supplied from a battery supplying an input voltage to the converter. A voltage across a sense resistor in series with the battery is integrated during a measurement interval while the calibration current load is coupled to the output. A charge drawn per pulse from the battery is determined based on the sense resistor, the integrated voltage and the number of pulses during the measurement interval. Alternatively, a first PFM frequency is determined with a first calibration current load coupled to the converter output. A second PFM frequency is determined with a second calibration current load. The charge drawn per pulse from the battery is determined based on the first and second PFM frequencies and the first and second calibration current loads.

2. 发明申请

US20210215765A1 CHARGE MEASUREMENT CALIBRATION IN A SYSTEM USING A PULSE FREQUENCY MODULATED DC-DC CONVERTER 有权
公开(公告)号：US20210215765A1
公开(公告)日：2021-07-15
申请号：US17215723
申请日：2021-03-29
申请人： Silicon Laboratories Inc.
发明人： Jeffrey L. Sonntag , Timothy J. Dupuis , Jiwen Xiao
IPC分类号： G01R31/387 , G01R31/3832
摘要： A calibration current load is selectively coupled to an output of a pulse frequency modulated (PFM) DC-DC converter during a calibration operation to increase charge supplied from a battery supplying an input voltage to the converter. A voltage across a sense resistor in series with the battery is integrated during a measurement interval while the calibration current load is coupled to the output. A charge drawn per pulse from the battery is determined based on the sense resistor, the integrated voltage and the number of pulses during the measurement interval. Alternatively, a first PFM frequency is determined with a first calibration current load coupled to the converter output. A second PFM frequency is determined with a second calibration current load. The charge drawn per pulse from the battery is determined based on the first and second PFM frequencies and the first and second calibration current loads.

3. 发明申请

US20160241024A1 ELECTROSTATIC DISCHARGE PROTECTION FOR A BALUN 有权
标题翻译： BALUN静电放电保护
公开(公告)号：US20160241024A1
公开(公告)日：2016-08-18
申请号：US14625453
申请日：2015-02-18
申请人： Silicon Laboratories Inc.
发明人： Timothy J. Dupuis , Ravi K. Kummaraguntla
IPC分类号： H02H9/04 , H01L23/00 , H03H7/42 , H01L27/02
CPC分类号： H01L27/0266 , H01L24/48 , H01L24/49 , H01L24/85 , H01L27/0255 , H01L2224/48265 , H01L2924/00014 , H01L2924/1203 , H01L2924/1206 , H01L2924/1304 , H01L2924/14 , H01L2924/141 , H02H9/046 , H01L2224/45099 , H01L2224/45015 , H01L2924/207
摘要： A die is mounted in an integrated circuit package. The die includes a balun circuit and an electrostatic discharge (ESD) circuit coupled to a ground of the integrated circuit die. The package has a first output pin coupled to a first terminal of the balun and has a second output pin coupled to a second terminal of the balun through first and second bond wires. The second output pin is connected to board ground. A third bond wire is disposed between the second package terminal and the ESD circuit to provide a safe discharge path through the third bond wire for ESD events affecting the first and second output terminals. Thus, a charge that builds up involving one of the output terminals coupled to the balun can be safely dissipated.
摘要翻译：芯片安装在集成电路封装中。芯片包括平衡 - 不平衡转换电路和耦合到集成电路管芯的接地的静电放电（ESD）电路。封装具有耦合到平衡 - 不平衡变换器的第一端子的第一输出引脚，并具有通过第一和第二接合线耦合到平衡 - 不平衡变换器的第二端子的第二输出引脚。第二个输出引脚连接到电路板接地。第三接合线布置在第二封装端子和ESD电路之间，以提供穿过第三接合线的安全放电路径，用于影响第一和第二输出端子的ESD事件。因此，可以安全地消耗涉及耦合到平衡 - 不平衡转换器的输出端子中的一个的构成的电荷。

4. 发明授权

US09812989B1 Isolated power transfer device 有权
公开(公告)号：US09812989B1
公开(公告)日：2017-11-07
申请号：US15270470
申请日：2016-09-20
申请人： Silicon Laboratories Inc.
发明人： Timothy J. Dupuis
IPC分类号： H02M7/537 , H01L23/498 , H01L23/64 , H01L23/00 , H01L25/18 , H01L23/66 , H01L21/48 , H01L25/00 , H03F3/195 , H03F3/213 , G01R19/18
CPC分类号： G01R19/18 , H01L21/4853 , H01L21/4857 , H01L23/49822 , H01L23/49844 , H01L23/642 , H01L23/645 , H01L23/66 , H01L24/48 , H01L25/072 , H01L25/18 , H01L25/50 , H01L2223/6616 , H01L2223/665 , H01L2224/48227 , H01L2924/14253 , H02M3/33553 , H02M3/33592 , H02M3/3376 , H03B5/1212 , H03B5/1228 , H03B5/124 , H03B2200/0062 , H03F3/195 , H03F3/213 , H03F3/45179 , H03F2200/451
摘要： An isolated power transfer device includes a transformer formed in a multi-layer substrate of an integrated circuit package. A primary winding of the transformer is coupled to a first integrated circuit to form a DC/AC power converter and a secondary winding of the transformer is coupled to a second integrated circuit to form an AC/DC power converter. The first and second integrated circuits are electrically isolated from each other. The first integrated circuit includes a lightly doped drain MOSFET integrated with conventional CMOS devices and the second integrated circuit includes a Schottky diode integrated with conventional CMOS devices. The isolated power transfer device includes a capacitive channel for communication of information across an isolation barrier from the second integrated circuit to the first integrated circuit. Capacitors of the capacitive channel may be formed in the multi-layer substrate of the integrated circuit package.

5. 发明授权

US09531376B2 Solid state relay using capacitive isolation 有权
标题翻译：固态继电器采用电容隔离
公开(公告)号：US09531376B2
公开(公告)日：2016-12-27
申请号：US14725558
申请日：2015-05-29
申请人： Silicon Laboratories Inc.
发明人： Jeffrey L. Sonntag , Timothy J. Dupuis
IPC分类号： H03K17/687 , H02M3/07
CPC分类号： H03K17/687 , H01L2224/48137 , H02M3/07 , H03K17/689 , H03K2217/0081
摘要： An oscillator supplies a clock signal having a frequency determined in part according to a received current. A transmit side charge pump is coupled to the clock signal and boosts a voltage supplied to the charge pump to generate a boosted voltage. A driver circuit drives a transmit signal having a frequency based on the clock signal and a voltage based on the boosted voltage to a capacitive isolation communication path. A receive side charge pump is coupled to the isolation capacitors of the isolation communication path and boosts a voltage of the received signal on the receive side of the isolation communication path and supplies a gate signal with the boosted voltage to a gate of at least one transistor.
摘要翻译：振荡器提供具有根据接收电流部分确定的频率的时钟信号。发射侧电荷泵耦合到时钟信号，并且提升提供给电荷泵的电压以产生升压电压。驱动电路将具有基于时钟信号的频率的发送信号和基于升压电压的电压驱动到电容隔离通信路径。接收侧电荷泵耦合到隔离通信路径的隔离电容器，并且增强隔离通信路径的接收侧上的接收信号的电压，并将具有升压电压的栅极信号提供给至少一个晶体管的栅极。

6. 发明申请

US20160352328A1 SOLID STATE RELAY USING CAPACITIVE ISOLATION 有权
标题翻译：使用电容隔离的固态继电器
公开(公告)号：US20160352328A1
公开(公告)日：2016-12-01
申请号：US14725558
申请日：2015-05-29
申请人： Silicon Laboratories Inc.
发明人： Jeffrey L. Sonntag , Timothy J. Dupuis
IPC分类号： H03K17/687 , H02M3/07
CPC分类号： H03K17/687 , H01L2224/48137 , H02M3/07 , H03K17/689 , H03K2217/0081
摘要： An oscillator supplies a clock signal having a frequency determined in part according to a received current. A transmit side charge pump is coupled to the clock signal and boosts a voltage supplied to the charge pump to generate a boosted voltage. A driver circuit drives a transmit signal having a frequency based on the clock signal and a voltage based on the boosted voltage to a capacitive isolation communication path. A receive side charge pump is coupled to the isolation capacitors of the isolation communication path and boosts a voltage of the received signal on the receive side of the isolation communication path and supplies a gate signal with the boosted voltage to a gate of at least one transistor.
摘要翻译：振荡器提供具有根据接收电流部分确定的频率的时钟信号。发射侧电荷泵耦合到时钟信号，并且提升提供给电荷泵的电压以产生升压电压。驱动电路将具有基于时钟信号的频率的发送信号和基于升压电压的电压驱动到电容隔离通信路径。接收侧电荷泵耦合到隔离通信路径的隔离电容器，并且增强隔离通信路径的接收侧上的接收信号的电压，并将具有升压电压的栅极信号提供给至少一个晶体管的栅极。

7. 发明申请

US20150180228A1 SUPPRESSION OF TRANSIENTS IN COMMUNICATIONS ACROSS AN ISOLATION BARRIER 有权
标题翻译：抑制通过隔离障碍物进行通信的过渡
公开(公告)号：US20150180228A1
公开(公告)日：2015-06-25
申请号：US14143504
申请日：2013-12-30
申请人： Silicon Laboratories Inc.
发明人： Michael J. Mills , Timothy J. Dupuis , Riad Wahby , Siddharth Sundar , Jeffrey L. Sonntag
IPC分类号： H02H9/04
CPC分类号： H02H9/04 , H01F19/04 , H01F2019/085 , H03K17/605 , H03K17/689 , H03K17/722 , H03K17/78 , H04L25/0266
摘要： Common mode transient immunity for an isolation system is improved by using a common transient suppression circuit coupled to a receive circuit to suppress transients in signals received by the receive circuit that were transmitted from a transmit side of the isolation barrier using optical, magnetic, inductive, or other mechanisms.
摘要翻译：通过使用耦合到接收电路的公共瞬态抑制电路来抑制由接收电路接收的信号中的瞬态，从而隔离系统的共模瞬态抗扰度得到改善，该瞬态信号使用光，磁，电感，或其他机制。

8. 发明申请

US20180180699A1 CHARGE MEASUREMENT IN A SYSTEM USING A PULSE FREQUENCY MODULATED DC-DC CONVERTER 审中-公开
公开(公告)号：US20180180699A1
公开(公告)日：2018-06-28
申请号：US15392487
申请日：2016-12-28
申请人： Silicon Laboratories Inc.
发明人： Jeffrey L. Sonntag , Timothy J. Dupuis , Jinwen Xiao
IPC分类号： G01R35/00 , H02J7/00 , G01R31/36
CPC分类号： H02J7/0063 , G01R31/3617 , G01R31/3675 , H02J2007/005
摘要： The charge drawn from a battery during each switching event (pulse) of a pulse frequency modulated DC-DC converter is determined during a calibration period. based on differences in pulse rate with different current loading. Another approach calibration approach determines charge drawn from the battery by measuring voltage across a sense resistor while measuring the total pulse rate and while adding sufficient load current to ensure that the voltage is much larger than the residual offset of the measurement system. During operation, the system counts number of pulses are counted and the total charge drawn from the battery is determined based, at least in part, on the charge transferred per pulse during calibration, the operational mode, the battery voltage during calibration and operationally and the output voltage. Based on the total charge drawn and temperature (for temperature dependent battery types), the battery state of charge is estimated.

9. 发明申请

US20180180698A1 CHARGE MEASUREMENT CALIBRATION IN A SYSTEM USING A PULSE FREQUENCY MODULATED DC-DC CONVERTER 审中-公开
公开(公告)号：US20180180698A1
公开(公告)日：2018-06-28
申请号：US15392475
申请日：2016-12-28
申请人： Silicon Laboratories Inc.
发明人： Jeffrey L. Sonntag , Timothy J. Dupuis , Jinwen Xiao
IPC分类号： G01R35/00 , G01R31/36
CPC分类号： G01R31/387 , G01R31/3833
摘要： A calibration current load is selectively coupled to an output of a pulse frequency modulated (PFM) DC-DC converter during a calibration operation to increase charge supplied from a battery supplying an input voltage to the converter. A voltage across a sense resistor in series with the battery is integrated during a measurement interval while the calibration current load is coupled to the output. A charge drawn per pulse from the battery is determined based on the sense resistor, the integrated voltage and the number of pulses during the measurement interval. Alternatively, a first PFM frequency is determined with a first calibration current load coupled to the converter output. A second PFM frequency is determined with a second calibration current load. The charge drawn per pulse from the battery is determined based on the first and second PFM frequencies and the first and second calibration current loads.

10. 发明授权

US09923643B2 Techniques for reduced jitter in digital isolators 有权
公开(公告)号：US09923643B2
公开(公告)日：2018-03-20
申请号：US14105332
申请日：2013-12-13
申请人： Silicon Laboratories Inc.
发明人： Timothy J. Dupuis , Jeffrey L. Sonntag , Michael J. Mills , Riad Wahby
IPC分类号： H04L27/00 , H04B10/80
CPC分类号： H04B10/802
摘要： An apparatus for communicating using an isolation channel includes a transmitter circuit having a first terminal configured to communicate a first signal. The first signal oscillates in response to a data signal having a first signal level and is constant in response to the data signal having a second signal level. The transmitter circuit includes a second terminal configured to communicate that oscillates in response to the data signal having the second signal level and is constant in response to the data signal having the first signal level. The apparatus may include a receiver circuit configured to generate a recovered data signal having a first transition in a first direction between first and second levels based on an edge of a first received signal and having a second transition in a second direction between the first and second levels based on an edge of a second received signal.

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