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公开(公告)号:US20180083534A1
公开(公告)日:2018-03-22
申请号:US15403255
申请日:2017-01-11
Applicant: Apple Inc.
Inventor: Sanjay Pant , Fabio Gozzini , Jay B. Fletcher , Shawn Searles
CPC classification number: H02M3/158 , H02M1/08 , H02M3/1584 , H02M2001/0009 , H02M2003/1586
Abstract: A system that includes a regulator unit is disclosed. The regulator unit includes first and second phase units whose outputs are coupled to through first and second coupled inductors, respectively, to a power supply node of a circuit block. The first phase unit may be configured to discharge, for a first period of time, the power supply node through the first inductor in response to determining a sense current is greater than a demand current. The operation of the second phase unit may follow that of the first phase unit after a second period of time has elapsed.
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公开(公告)号:US09843330B1
公开(公告)日:2017-12-12
申请号:US15272526
申请日:2016-09-22
Applicant: Apple Inc.
Inventor: Hubert Attah , Jay B. Fletcher , Erick O. Torres , Fabio Gozzini
CPC classification number: H03K21/026 , H02M3/157 , H03K19/21
Abstract: An apparatus is disclosed, including a driver circuit, a comparator circuit, and a counter circuit. The driver circuit may be configured to source a current to a load circuit. The comparator circuit may be configured to perform a comparison of a reference voltage to a voltage across the load circuit. The counter circuit may be configured to modify a digital count value based on the comparison. The driver circuit may be further configured to adjust a value of the current using the digital count value.
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公开(公告)号:US20230188043A1
公开(公告)日:2023-06-15
申请号:US18168276
申请日:2023-02-13
Applicant: Apple Inc.
Inventor: Sanjay Pant , Fabio Gozzini , Hubert Attah , Jonathan F. Bolus , Wenxun Huang
IPC: H02M3/158 , H02M3/157 , G06F1/3203 , H03M1/12
CPC classification number: H02M3/1584 , H02M3/157 , G06F1/3203 , H03M1/12 , H02M3/1586
Abstract: A voltage regulator circuit included in a computer system may include multiple phase circuits coupled to a regulated power supply line via corresponding one of multiple inductors. The phase circuits may modify a voltage level of the regulated power supply line using respective control signals generated by a digital control circuit that processes multiple data bits. An analog-to-digital converter circuit may compare the voltage level of the regulated power supply node to multiple reference voltage levels and sample the resultant comparisons to generate the multiple data bits.
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公开(公告)号:US10862388B1
公开(公告)日:2020-12-08
申请号:US16509234
申请日:2019-07-11
Applicant: Apple Inc.
Inventor: Fabio Gozzini , Jonathan F. Bolus
Abstract: A power converter circuit that includes a switch node coupled to a regulated power supply node via an inductor may, during a charge cycle, source current to the regulated power supply node. In response to initiating the charge cycle, a control circuit may generate a control current using a voltage level of the regulated power supply node and a reference voltage level. The control circuit may also halt the charge cycle using results from comparisons of the compensated and uncompensated versions of the inductor current to the control current.
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15.
公开(公告)号:US10520970B2
公开(公告)日:2019-12-31
申请号:US14870661
申请日:2015-09-30
Applicant: Apple Inc.
Inventor: Jay B. Fletcher , Shawn Searles , Fabio Gozzini , Sanjay Pant
Abstract: A system that includes a regulator unit is disclosed. The regulator unit includes first and second phase units whose outputs are coupled to a common output node. Each of the phase units may be configured to source current to the output node in response to the assertion of a respective clock signal in order to generate a regulated supply voltage. Each phase unit includes a respective transconductance amplifier configured to generate a respective demand current dependent upon a reference voltage and the regulated supply voltage.
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公开(公告)号:US20180083532A1
公开(公告)日:2018-03-22
申请号:US15402827
申请日:2017-01-10
Applicant: Apple Inc.
Inventor: Fabio Gozzini , Jay B. Fletcher , Shawn Searles , Sanjay Pant
CPC classification number: H02M3/156 , H02M1/08 , H02M3/1584 , H02M2001/0003 , H02M2001/0009 , H02M2001/0025 , H02M2001/0064 , H02M2003/1586
Abstract: A system that includes a regulator circuit is disclosed. The regulator circuit includes first and second phase units whose outputs are coupled to a power supply node of a circuit block, via respective coupled inductors. The first phase unit may initiate a charge cycle of the power supply node in response to assertion of a clock signal and generate a compensated current using currents measure through both inductors and the clock signal. In response to a determination that the compensated current is greater than a demand current generated using a voltage level of the power supply node and a reference voltage, the first phase unit may halt the charge cycle.
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公开(公告)号:US20240126353A1
公开(公告)日:2024-04-18
申请号:US18497443
申请日:2023-10-30
Applicant: Apple Inc.
Inventor: Shawn Searles , Fabio Gozzini , Sanjay Pant , Inder M. Sodhi
CPC classification number: G06F1/26 , G01R15/146 , G11C7/1096
Abstract: A power converter circuit included in a computer system may include a phase circuit and a sample circuit. The phase circuit compares a voltage level of the regulated power supply node to a reference voltage to generate a demand current that is used to adjust the voltage level of the regulated power supply node. The phase circuit also digitizes the demand current and stores the resultant bit stream in a memory circuit. The sample circuit generates timestamp information that points to particular storage locations in the memory circuit that correspond to trigger events, allowing the operation of the power converter circuit to be analyzed during different circumstances as well as to adjust operating parameters of the power converter circuit.
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公开(公告)号:US11949334B2
公开(公告)日:2024-04-02
申请号:US17644521
申请日:2021-12-15
Applicant: Apple Inc.
Inventor: Jonathan F. Bolus , Alberto Alessandro Angelo Puggelli , Fabio Gozzini , Hao Zhou
CPC classification number: H02M3/158 , H02M1/0009 , H02M3/1584
Abstract: A power converter is disclosed. The power converter includes a switching circuit configured to source current to a switch node that is coupled, via an inductor, to a regulated power supply node. A DC resistance sensing circuit includes a first filter and a second filters. The first filter circuit is configured to filter a voltage level of a first terminal of the inductor to generate a first filtered signal, while the second filter circuit is configured to filter a voltage level of a second terminal of the inductor to generate a second filtered signal. A control circuit is configured to adjust the operation of the switching circuit using a voltage level of the regulated power supply node, the first filtered signal, and the second filtered signal.
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公开(公告)号:US20240014739A1
公开(公告)日:2024-01-11
申请号:US18474677
申请日:2023-09-26
Applicant: Apple Inc.
Inventor: Sanjay Pant , Fabio Gozzini , Hubert Attah , Jonathan F. Bolus , Wenxun Huang , Koushik Vaithyanathan , Alberto Puggelli
IPC: H02M3/158 , H02M3/157 , G06F1/3203 , H03M1/12
CPC classification number: H02M3/1584 , H02M3/157 , G06F1/3203 , H03M1/12 , H02M3/1586
Abstract: A power converter with slew rate detection is disclosed. A power converter comprises a plurality of phase circuits coupled to a regulated power supply line via corresponding ones of a plurality of inductors. A first control loop generates, using digital samples and based on comparisons of a reference voltage to a voltage on the regulated power supply line, a first plurality of control signals. A second control loop, using the digital samples, generates a second plurality of control signals based on a rate of change of the voltage of the regulated power supply line. The second control loop causes the first control loop to control the plurality of phase circuits in response to detecting that the rate of change is within a specified range, and causes the second control loop to control the plurality of phase circuits, in response to detecting that the rate of change exceeds the specified range.
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公开(公告)号:US20200350822A1
公开(公告)日:2020-11-05
申请号:US16877260
申请日:2020-05-18
Applicant: Apple Inc.
Inventor: Sanjay Pant , Fabio Gozzini , Hubert Attah , Jonathan F. Bolus , Wenxun Huang
IPC: H02M3/158 , H02M3/157 , G06F1/3203 , H03M1/12
Abstract: A voltage regulator circuit included in a computer system may include multiple phase circuits each coupled to a regulated power supply node via a corresponding inductor. The phase circuits may modify a voltage level of the regulated power supply node using respective control signals generated by a digital control circuit that processes multiple data bits. An analog-to-digital converter circuit may compare the voltage level of the regulated power supply node to multiple reference voltage levels and sample the resultant comparisons to generate the multiple data bits.
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