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公开(公告)号：US20230361796A1
公开(公告)日：2023-11-09
申请号：US18352424
申请日：2023-07-14
CPC分类号： H04B1/16 , H04L27/06 , H03F3/19 , H03F3/245 , H03F2200/451
摘要： A method for calibrating the DC operating point of a PWM receiver circuit is disclosed. The PWM receiving circuit includes an envelope detector having a first resistor string, and includes a bias circuit having a second resistor string and a plurality of switches. The second resistor string is coupled between a supply voltage and a reference voltage and functions as a voltage divider. Each switch, when closed, accesses a second voltage at a node of the second resistor string connected to the closed switch. To perform the calibration process, the plurality of switches is closed one at a time, and the second voltage is compared with a first voltage at a first node of the first resistor string. The switch that, when closed, produces the smallest difference between the first voltage and the second voltage remains closed after the calibration process, and is used for demodulating the PWM signal.
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公开(公告)号：US12095423B2
公开(公告)日：2024-09-17
申请号：US17704919
申请日：2022-03-25
CPC分类号： H03F1/0233 , H03F3/19 , H04B1/40 , H03F2200/105 , H03F2200/451
摘要： A rectifier stage includes a differential input transistor pair coupled between a reference voltage node and an intermediate node, and a load circuit coupled between the intermediate node and a supply voltage node. The differential input transistor pair receives a radio-frequency amplitude modulated signal. A rectified signal indicative of an envelope of the radio-frequency amplitude modulated signal is produced at the intermediate node. An amplifier stage coupled to the intermediate node produces an amplified rectified signal at an output node that is indicative of the envelope of the radio-frequency amplitude modulated signal. The rectifier stage includes a resistive element coupled between the intermediate node and the supply voltage node in parallel to the load circuit.
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3.发明申请公开(公告)号：US20190222126A1
公开(公告)日：2019-07-18
申请号：US16244272
申请日：2019-01-10
CPC分类号： H02M3/33523 , H01F19/08 , H01F27/2804 , H01F2019/085 , H02M1/08 , H02M3/33507 , H02M3/33515 , H02M3/33592 , H02M3/337 , H02M3/338 , H03B5/1215 , H03B5/1228 , H04L27/08
摘要： A DC-DC converter includes a power oscillator connected to a first transformer winding, and a channel conveying a data stream through galvanic isolation by power signal modulation. A rectifier rectifies the power signal to produce a DC voltage. A comparator produces an error signal from the DC voltage and a reference voltage. An analog-to-digital converter converts the error signal to a digital power control value. A multiplexer multiplexes the digital power control value with the data stream to obtain a multiplexed bitstream. A transmitter driven by the multiplexed bitstream performs amplitude modulation of the power signal at a second transformer winding. A receiver connected to the first winding demodulates the amplitude modulated power signal. A demultiplexer demultiplexes the data stream and the digital power control value. A digital-to-analog converter converts the digital power control value to an analog control signal for the power oscillator.
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公开(公告)号：US20170154727A1
公开(公告)日：2017-06-01
申请号：US15163430
申请日：2016-05-24
CPC分类号： H01F38/14 , H01F2038/143 , H01F2038/146 , H01L23/66 , H01L24/06 , H02J50/12 , H02M7/06 , H03B15/00 , H04B5/0037 , H04L25/0266
摘要： A galvanic isolation system includes a first isolation barrier and a second isolation barrier. The first isolation barrier includes a transformer. The second isolation barrier includes an inductive circuit connected to a secondary winding of the transformer. The first and the second isolation barriers are coupled to form an LC resonant network.
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5.发明授权Power oscillator apparatus with transformer-based power combining for galvanically-isolated bidirectional data communication and power transfer 有权功率振荡器装置，具有基于变压器的功率组合，用于电隔离双向数据通信和电力传输公开(公告)号：US09306614B2
公开(公告)日：2016-04-05
申请号：US14631397
申请日：2015-02-25
CPC分类号： H04B1/40 , G08C19/02 , G08C19/16 , H03B5/1212 , H03B5/1228 , H03B5/1296 , H03B2200/0074 , H04B3/54 , H04L27/08
摘要： An apparatus includes first and second oscillator circuits. A transformer has a primary winding coupling the first oscillator circuit to the second oscillator circuit and a secondary winding. A first outgoing communications circuit is coupled to the second oscillator circuit and drives an amplitude modulated data signal thereto. A first incoming communications circuit is coupled to the primary winding of the transformer. A second outgoing communications circuit is coupled to the secondary winding drives an amplitude modulated data signal thereto. A second incoming communications circuit is coupled to the secondary winding. The secondary winding is magnetically coupled with the primary winding so the secondary winding receives an output power and an incoming data transmission based upon the amplitude modulated data signal, and so the primary winding receives an incoming high speed data transmission based upon the amplitude modulated data signal.
摘要翻译： 一种装置包括第一和第二振荡器电路。 变压器具有将第一振荡器电路耦合到第二振荡器电路的初级绕组和次级绕组。 第一输出通信电路耦合到第二振荡器电路并向其驱动调幅数据信号。 第一输入通信电路耦合到变压器的初级绕组。 耦合到次级绕组的第二输出通信电路驱动其幅度调制数据信号。 第二输入通信电路耦合到次级绕组。 次级绕组与初级绕组磁耦合，使得次级绕组基于幅度调制数据信号接收输出功率和输入数据传输，因此初级绕组基于幅度调制数据信号接收输入的高速数据传输 。
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公开(公告)号：US20230179244A1
公开(公告)日：2023-06-08
申请号：US17457496
申请日：2021-12-03
CPC分类号： H04B1/16 , H03F3/19 , H04L27/06 , H03F2200/451
摘要： A method for calibrating the DC operating point of a PWM receiver circuit is disclosed. The PWM receiving circuit includes an envelop detector having a first resistor string, and includes a bias circuit having a second resistor string and a plurality of switches. The second resistor string is coupled between a supply voltage and a reference voltage and functions as a voltage divider. Each switch, when closed, accesses a second voltage at a node of the second resistor string connected to the closed switch. To perform the calibration process, the plurality of switches is closed one at a time, and the second voltage is compared with a first voltage at a first node of the first resistor string. The switch that, when closed, produces the smallest difference between the first voltage and the second voltage remains closed after the calibration process, and is used for demodulating the PWM signal.
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公开(公告)号：US09948193B2
公开(公告)日：2018-04-17
申请号：US15178822
申请日：2016-06-10
发明人： Egidio Ragonese , Nunzio Spina , Pierpaolo Lombardo , Nunzio Greco , Alessandro Parisi , Giuseppe Palmisano
IPC分类号： H02M3/335
CPC分类号： H02M3/33553 , H01L2224/48137 , H02M3/33523 , H02M3/33584 , H02M2001/0012
摘要： A galvanic isolation is provided between a first circuit and a second circuit. A first galvanically isolated link is configured to transfer power from a first circuit to a second circuit across the galvanic isolation. A second galvanically isolated link is configured to feed back an error signal from the second circuit to the first circuit across the galvanic isolation for use in regulating the power transfer and further configured to support bidirectional data communication between the first and second circuits across the galvanic isolation.
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8.发明申请公开(公告)号：US20160072435A1
公开(公告)日：2016-03-10
申请号：US14942200
申请日：2015-11-16
IPC分类号： H03B5/12
CPC分类号： H03B5/1212 , H03B1/02 , H03B5/02 , H03B5/1215 , H03B5/1228 , H03B5/1296 , H03B27/00 , H03B2200/0074 , H03B2200/0076 , H03B2200/0078
摘要： An oscillator circuit includes first and second oscillators arranged in a series configuration between a supply voltage node and a reference voltage node. The first and second oscillators are configured to receive a synchronizing signal for controlling synchronization in frequency and phase. An electromagnetic network provided to couple the first and the second oscillators includes a transformer with a primary circuit and a secondary circuit. The primary circuit includes a first portion coupled to the first oscillator and second portion coupled to the second oscillator. The first and second portions are connected by a circuit element for reuse of current between the first and second oscillators. The oscillator circuit is fabricated as an integrated circuit device wherein the electromagnetic network is formed in metallization layers of the device. The secondary circuit generates an output power combining power provided from the first and second portions of the primary circuit.
摘要翻译： 振荡器电路包括在电源电压节点和参考电压节点之间以串联配置布置的第一和第二振荡器。 第一和第二振荡器被配置为接收用于控制频率和相位同步的同步信号。 提供用于耦合第一和第二振荡器的电磁网络包括具有初级电路和次级电路的变压器。 主电路包括耦合到第一振荡器的第一部分和耦合到第二振荡器的第二部分。 第一和第二部分由用于在第一和第二振荡器之间重新使用电流的电路元件连接。 振荡器电路被制造为集成电路器件，其中电磁网络形成在器件的金属化层中。 次级电路产生从主电路的第一和第二部分提供的输出功率组合功率。
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公开(公告)号：US12081253B2
公开(公告)日：2024-09-03
申请号：US18352424
申请日：2023-07-14
CPC分类号： H04B1/16 , H03F3/19 , H03F3/245 , H04L27/06 , H03F2200/451
摘要： A method for calibrating the DC operating point of a PWM receiver circuit is disclosed. The PWM receiving circuit includes an envelope detector having a first resistor string, and includes a bias circuit having a second resistor string and a plurality of switches. The second resistor string is coupled between a supply voltage and a reference voltage and functions as a voltage divider. Each switch, when closed, accesses a second voltage at a node of the second resistor string connected to the closed switch. To perform the calibration process, the plurality of switches is closed one at a time, and the second voltage is compared with a first voltage at a first node of the first resistor string. The switch that, when closed, produces the smallest difference between the first voltage and the second voltage remains closed after the calibration process, and is used for demodulating the PWM signal.
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公开(公告)号：US10917091B2
公开(公告)日：2021-02-09
申请号：US16371919
申请日：2019-04-01
IPC分类号： H03K7/08 , H03K17/691 , H03K17/723 , H03K17/722 , H03B5/06 , H03L7/08 , H03L7/06 , H03L7/183 , H02M3/335 , H02M1/00 , H01F19/08
摘要： An oscillator is coupled to a first side of a galvanic barrier for supplying thereto an electric supply signal. The oscillator is configured to be alternatively turned on and off as a function of a PWM drive signal applied thereto. A receiver circuit coupled to the galvanic barrier receives therefrom a PWM power control signal. A signal reconstruction circuit coupled between the receiver circuit block and the oscillator provides to the oscillator a PWM drive signal reconstructed from the PWM power control signal. The signal reconstruction circuit includes a PLL circuit coupled to the receiver circuit block and configured to lock to the PWM control signal from the receiver circuit block. A PLL loop within the PLL circuit is sensitive to the PWM drive signal applied to the oscillator. The PLL loop is configured to be opened as a result of the power supply oscillator being turned off.
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