USRE49449E1 - Charge pump with temporally-varying adiabaticity - Google Patents
Charge pump with temporally-varying adiabaticity Download PDFInfo
- Publication number
- USRE49449E1 USRE49449E1 US17/133,909 US202017133909A USRE49449E US RE49449 E1 USRE49449 E1 US RE49449E1 US 202017133909 A US202017133909 A US 202017133909A US RE49449 E USRE49449 E US RE49449E
- Authority
- US
- United States
- Prior art keywords
- charge pump
- circuit
- voltage
- coupled
- compensation circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Definitions
- This invention relates to adiabatic power conversion, and in particular to configuration and control for partial adiabatic operation of a charge pump.
- a single-phase Dickson charge pump 100 is illustrated in a step-down mode coupled to a low-voltage load 110 and a high-voltage source 190 .
- the low-voltage load 110 is driven (on average) by a voltage that is 1 ⁇ 5 times the voltage provided by the source and a current that is five times the current provided by the high-voltage source 190 .
- the pump is driven in alternating states, referred to as state one and state two, such that the switches illustrated in FIG. 1 are closed in the indicated states.
- the duration of each state is half of a cycle time T and the corresponding switching frequency of the charge pump 100 is equal to the inverse of the cycle time T.
- FIGS. 2 A-B illustrate the equivalent circuit in each of states two and state one, respectively, illustrating each closed switch as an equivalent resistance R.
- Capacitors C 1 through C 4 have a capacitance C.
- the high-voltage source 190 is a voltage source, for example, a twenty-five volt source, such that the low-voltage load 100 is driven by five volts.
- the voltage across the capacitors C 1 through C 4 are approximately five volts, ten volts, fifteen volts, and twenty volts, respectively.
- One cause of energy loss in the charge pump 100 relates the resistive losses through the switches (i.e., through the resistors R in FIGS. 2 A-B ).
- the resistive losses through the switches i.e., through the resistors R in FIGS. 2 A-B .
- FIG. 2 A during state two, charge transfers from the capacitor C 2 to the capacitor C 1 and from the capacitor C 4 to the capacitor C 1 .
- the voltages on these pairs of capacitors equilibrate assuming that the cycle time T is sufficiently greater than the time constant of the circuit (e.g., that the resistances R are sufficiently small.
- the resistive energy losses in this equilibration are proportional to the time average of the square of the current passing between the capacitors and therefore passing to the low-voltage load 110 .
- the capacitors C 3 and C 2 equilibrate, the capacitor C 4 charges, and the capacitor C 1 discharges, also generally resulting in a resistive energy loss that is proportional to the time average of the square of the current passing to the low-voltage load 110 .
- the resistive energy loss decreases as the cycle time T is reduced (i.e., switching frequency is increased). This can generally be understood by considering the impact of dividing the cycle time by one-half, which generally reduces the peak currents in the equilibration by one half, and thereby approximately reduces the resistive energy loss to one quarter. So the resistive energy loss is approximately inversely proportional to the square of the switching frequency.
- Patent Publication WO 2012/151466, published on Nov. 8, 2012 describes configurations in which the source and/or load comprise regulating circuits.
- the load 110 can effectively comprise a current sink rather than present a constant voltage in an example of what is referred to as “adiabatic” operation of a charge pump. If the current sink accepts constant current, then the currents illustrated in FIG. 2 A effectively remain substantially constant values during the illustrated state. Therefore, the resistive power loss is lower than the resistive loss in the voltage driven case discussed in the Background, and also substantially independent of the cycle time T.
- the resistive energy loss generally increases as the duty cycle of the current decreases (and the peak current increases).
- the resistive losses with a pulsed current exceed the losses for the same average current that would result from the charge pump driving a relatively constant output voltage, for example, across a large output capacitor.
- operation of a charge pump is controlled to optimize power conversion efficiency by using an adiabatic mode with some operating characteristics and a non-adiabatic mode with other characteristics.
- the control is implemented by controlling a configurable circuit at the output of the charge pump.
- operation of a charge pump is controlled so that resistive power losses are minimized by using an adiabatic mode with relatively high duty cycle (i.e., relatively high output current) and using a non-adiabatic mode with relative low duty cycle (e.g., relatively low output current).
- mode is selected by selectively introducing a compensation capacitor at the output of the charge pump to present a substantially constant voltage.
- an apparatus in another aspect, in general, a charge pump and a controller coupled to the charge pump.
- the charge pump has a plurality of switch elements arranged to operate in a plurality cycles, with each cycle being associated with a different configuration of the switch elements.
- the switch elements are configured to provide charging and discharging paths for a plurality of capacitive elements.
- the controller has an output for controlling timing of the cycles of the charge pump and one or more sensor inputs for accepting sensor signals charactering operation of the charge pump and/or operation of peripheral circuits coupled to the charge pump.
- the controller is configured adjust the timing of the cycles of the charge pump according variation of the one or more sensor inputs within cycles of operation of the charge pump.
- an apparatus in another aspect, in general, includes a switched capacitor charge pump configured to provide a voltage conversion between terminals including a high voltage terminal and a low voltage terminal.
- the apparatus also includes a compensation circuit coupled to a first terminal of the charge pump for driving a load by the charge pump, the compensation circuit providing a capacitance configurably couplable to the first terminal of the charge pump.
- a controller is coupled to charge pump and the configurable circuit, and has an output for configuring the compensation circuit, and one or more sensor inputs for accepting sensor signals charactering operation of the charge pump and/or operation of peripheral circuits coupled to the charge pump.
- the controller is configured to configure the compensation circuit according to the sensor signals to affect efficiency of power conversion between a power source coupled to the charge pump and the load coupled to the charge pump via the configurable circuit.
- aspects may include one or more of the following features.
- the controller is configured to couple a selected capacitance to the first terminal to optimize an efficiency of the power conversion.
- the one or more sensor signals include a sensor signal that characterizes time variation of a current passing to or from the charge pump via the compensation circuit.
- the sensor signal characterizes a duty cycle of a pulsed current passing to or from the charge pump.
- this current passing to or from the charge pump via the compensation circuit is a current passing between the compensation circuit and a peripheral coupled to the charge pump via the compensation circuit.
- the one or more sensor signals include a sensor signal that characterizes a voltage at at least one of the terminals of the charge pump and at the peripheral circuit coupled to the charge pump.
- the one or more sensor signals include a sensor signal that characterizes switching frequency of the charge pump.
- the controller is configured to determine an operating mode from the sensor signals, and to determine the configuration of the compensation circuit according to the determined mode.
- the controller is configured to identify at least a mode having fast switching limit operation of the charge pump and a pulsed current load, and increase the capacitance coupled to the first terminal in said mode.
- the controller is configured to identify at least a mode having slow switching limit operation of the charge pump and a pulsed current load with a duty cycle less than a threshold duty cycle, and increase the capacitance coupled to the first terminal in said mode.
- the apparatus further includes a peripheral circuit that includes a regulator coupled to the compensation circuit.
- the regulator provides a current-based load via the compensation circuit to charge pump.
- the controller is configured to determining a configuration of the compensation circuit according to an efficiency of power conversion performed by the charge pump.
- the regulator comprises a Buck converter.
- the charge pump comprises a Series-Parallel charge pump.
- the charge pump comprises a Dickson charge pump.
- a method is directed to power regulation using a charge pump coupled to a load using a compensation circuit coupled to a terminal of the charge pump.
- the method includes configuring a capacitance provided by the compensation circuit to a first terminal of the charge pump.
- the capacitance is selected according to the sensor signals to affect efficiency of power conversion between a power source coupled to the charge pump and the load coupled to the charge pump via the configurable circuit.
- the method may include acquiring the sensor signals.
- the sensor signals may characterize one or more a time variation of a current passing to or from the charge pump via the compensation circuit, a duty cycle of a current passing between the compensation circuit and a peripheral circuit, a voltage at the first terminal of the charge pump, and a voltage at the peripheral circuit coupled to the charge pump.
- One advantage of one or more embodiments is that efficient operation is maintained in varying operating modes of the power converter.
- a controller does not have to be preconfigured for a particular use of a charge pump and can adapt to the circuit in which the pump is embedded without further configuration.
- the controller can adapt to the size of pump capacitors used, type of regulator coupled to the pump, switching frequency of the pump and/or regulator, etc.
- FIG. 1 is a single-phase 1:5 Dickson charge pump
- FIGS. 2 A-B are equivalent circuits of the charge pump of FIG. 1 in two states of operation
- FIGS. 3 and 4 are circuits having a switchable compensating circuit coupled to the charge pump
- FIG. 5 is a circuit for measuring a charge pump current
- FIG. 6 is a schematic illustrating charge transfer during one cycle of the charge pump illustrated in FIG. 4 ;
- FIGS. 7 A-C are graphs of output voltage of the charge pump illustrated in FIG. 4 at different output current and switching frequency conditions.
- FIG. 8 is a single-phase series-parallel charge pump.
- a charge pump 100 illustrated in FIG. 1 may be operated in an “adiabatic” mode in which one or both of a low-voltage peripheral 110 and a high-voltage peripheral 190 may comprise a current source.
- a low-voltage peripheral 110 and a high-voltage peripheral 190 may comprise a current source.
- Patent Publication WO 2012/151466, published on Nov. 8, 2012, and incorporated herein by reference describes configurations in which the source and/or load comprise regulating circuits.
- the low-voltage load 110 can effectively comprise a current source rather than a voltage source in an example of what is referred to as “adiabatic” operation of a charge pump. If the current source maintains a constant current from the charge pump, then currents illustrated in FIG.
- the resistive losses in the switches through which the current passes are lower than the resistive loss in the voltage load case, and also substantially independent of the switching frequency and the cycle time T.
- the voltage driven case there capacitive losses in the switches grow with increasing switching frequency, which suggests that lowering the switching frequency is desirable.
- other factors which may depend on internal aspects of the charge pump, voltage or current characteristics at the terminals of the charge pump, and/or internal aspects of the peripheral elements, such as the source and/or load, may limit the cycle time (e.g., impose a lower limit on the switching frequency).
- a load 320 in a first mode of operation, can be considered to comprise a constant current source 312 with an output current 10 .
- the load 320 also includes an output capacitor, which for the analysis below can be considered to be small enough such that current passing to the load 320 can be considered to be substantially constant.
- the charge transfer between capacitors in the charge pump 100 during the alternating states of operation of the charge pump 100 are therefore substantially constant in the adiabatic mode of operation.
- a compensation circuit 340 is introduced between the charge pump 100 and the load 320 .
- a switch 344 is controllable to selectively introduce a compensation capacitor 342 to the output of the charge pump 100 .
- a controller 350 accepts inputs that characterize one or more factors that affect efficiency and outputs a control signal that sets the state of the switch 344 according to whether efficiency is expected to be improved introducing the compensation capacitor versus not. A further discussion of logic implemented by the controller 350 is provided later in this Description.
- a configuration of a charge pump 100 has a regulator 320 coupled via a compensation circuit 340 to the low-voltage terminal of a charge pump 100 , and a voltage source 392 coupled to the high-voltage terminal of the charge pump 100 .
- the regulator 320 (also referred to below generally interchangeably as a “converter”) illustrated in FIG. 4 is a Buck converter, which consists of switches 322 , 324 , an inductor 326 , and an output capacitor 328 .
- the switches open and close (i.e., present high and low impedance, respectively) in alternating states, such that the switch 322 is open when then the switch 324 is closed, and the switch 322 is closed when the switch 324 is open.
- switches operate at a frequency than can be lower, higher, or equal to the switches in the charge pump 100 , with a duty cycle defined as the fraction of time that the switch 322 in the regulator 320 is closed.
- a preferred embodiment is when the switching frequency of the charge pump 100 is lower than the regulator 320 .
- the charge-pump 100 is disabled when the regulator 320 is off (low duty cycle) and the charge-pump 100 is enabled when the regulator 320 is on.
- the regulator 320 operates at its highest power efficiency when it operates at its highest duty cycle.
- a controller of the regulator (not shown) adjusts the duty cycle in a conventional manner to achieve a desired output voltage VO.
- the current passing from the charge pump 100 to the regulator 320 is effectively constant, equal to the current through the inductor 326 .
- the switching frequency of the regulator 320 is substantially higher than the switching frequency of the charge pump 100
- the charge pump 100 can be considered to be driven by a pulsed current source with an average current equal to the duty cycle times the inductor current.
- the resistive energy loss generally increases as the duty cycle of the current decreases, approximately inversely with the duty cycle.
- the controller 350 closes the switch 344 and introduces a relatively large compensation capacitor 342 at the output of the charge pump 100 .
- the charge pump 100 is presented with a substantially constant voltage, and therefore operates in a substantially “non-adiabatic” mode. Therefore, the controller 350 is effectively responsive to the output voltage because the duty cycle is approximately proportional to the output voltage. Thereby operating the charge pump 100 in an adiabatic mode at high output voltage and in a non-adiabatic mode at low output voltage; and switches between the adiabatic and non-adiabatic modes at a threshold duty cycle to maintain an optimum efficiency of the overall power conversion.
- control logic implemented in the controller 350 in configurations such as those illustrated in FIGS. 4 and 5 can be under in view of the following discussion.
- a charge pump can operate in one of two unique operating conditions, or in the region in between them.
- SSL slow switching limit
- FSL fast switching limit
- Another factor relates to the capacitance at the output of the charge pump 100 , which in the circuits of FIG. 4 can be increased by closing the switch 344 to add the compensation capacitor 342 to the output.
- the output current of the charge pump 100 is effectively set by the pulsed current characteristic of the regulator 320 .
- the resistive power losses in the pulsed current case are approximately inversely proportional the duty cycle.
- the RMS of the output current of the charge pump 100 is effectively determined by the equilibration of the internal capacitors of the charge pump 100 with the compensation capacitor 342 and the regulator 320 .
- this resistive power loss is approximately inversely proportional to the square of the peak-to-peak voltage across the internal capacitors in the charge pump 100 .
- each of these four modes is affected in different ways based on the addition of a compensation capacitor 342 as shown in FIGS. 3 and 4 .
- Case three In SSL mode, with constant output current IO as in FIG. 3 , efficiency generally increases without introduction of the compensation capacitor 342 , thereby yielding adiabatic operation.
- Case four In SSL mode, with pulsed load current as in FIG. 4 , efficiency depends on the relation between the average output current, the duty cycle, and how far the charge pump 100 is operating from the SSL/FSL boundary. For example, at low duty cycle, efficiency generally increases with introduction of the compensation capacitor 342 , thereby yielding non-adiabatic operation. In contrast, at high duty cycle, efficiency generally increases without introduction of the compensation capacitor 342 , thereby yielding adiabatic operation. Furthermore, when the charge pump 100 is in SSL mode, the farther from the SSL/FSL boundary, the lower the duty cycle at which the efficiency trend reverses.
- the controller 350 does not have access to signals or data that directly provide the mode in which the power conversion is operating.
- One approach is for the controller to receive a sensor signal that represents the input current of the charge pump, and infer the operating mode from that sensor signal.
- a sensor signal determined as a voltage across the switch at the high voltage terminal of the converter can be used to represent the current because when the switch is closed, the voltage is the current times the switch resistance.
- FIG. 5 An alternative circuit shown in FIG. 5 provides a scaled version of the input current IIN.
- the input switch 510 with closed resistance R is put in parallel with a second switch with closed resistance kR, for example, fabricated as a CMOS switch where the factor k depends on the geometry of the switch.
- the differential amplifier 530 controls the gate voltage of a transistor 540 such that the voltage drop across the two switches are equal, thereby yielding the scaled input current IIN/k, which can be used to form a sensor input signal for the controller.
- the sensed input current can be used to determine whether the compensation capacitor should be switched in, for example, according to a transition between case four and case two described above.
- One possible method for determining the operation mode of the charge pump 100 consists of taking two or more measurements of the input current IIN and establishing that the difference between the values of consecutive samples is substantially zero for SSL mode, or is above a pre-determined threshold for FSL mode.
- Another method is to measure the difference in the voltage of a capacitor in the charge pump 100 .
- the controller 350 can infer the operating mode based upon the voltage ripple on the capacitor over a full cycle. Note that the controller 350 does not necessarily know the particular sizes of capacitors that are used in the charge pump 100 , for example, because the capacitors are discrete capacitors that are not predetermined. However, the capacitor values can be inferred from knowledge of the current, voltage ripple, and frequency, thereby allowing the controller 350 to determine whether the charge pump 100 is operating in the FSL or SSL mode. The controller 350 can then select adiabatic or non-adiabatic charging by controlling the switch 344 to selectively introduce the compensation capacitor 342 .
- controller logic is used in other implementations.
- ⁇ is the efficiency
- VO is the measured converter output voltage
- VIN is the measured converter input voltage
- N is the charge pump conversion ratio
- the controller directly measures the effect of selecting adiabatic vs. non-adiabatic charging on converter efficiency by comparing the average value of the output voltage VO over a complete charge pump cycle.
- controller logic uses combinations of the approaches described above. For instance, the controller can confirm that the assessment of charge pump operating mode and estimation of efficiency increase by changing the charge pump charging mode.
- a traditional method for operating the charge pump 100 is at a fixed frequency in which the switching occurs independently of the load requirement (i.e., the switches in FIG. 1 operate on a fixed time period).
- a current I 1 discharges from the capacitor C 1 and a current IP discharges other of the capacitors in the charge pump 100 .
- the longer the cycle time T the larger the drop in voltage provided by the capacitor C 1 .
- the switching frequency generally limits the maximum intermediate current IX because the switching frequency for a particular load determines the extent of voltage excursions, and in some cases current excursions (i.e., deviations, variation), at various points and between various points within the charge pump 100 and at its terminals. For a particular design of charge pump 100 , or characteristics of load and/or source of the charge pump 100 , there are operational limits on the excursions.
- the intermediate voltage VX of the charge pump 100 is shown in various current and timing examples.
- the intermediate voltage VX generally follows a saw-tooth pattern such that it increases rapidly at the start of each state, and then generally falls at a constant rate. Consequently, the rate of voltage drop depends on the output current IO.
- a total ripple voltage ⁇ results, and a margin over the output voltage VO is maintained, as illustrated in FIG. 7 A .
- the graphs shown in FIGS. 7 A-B do not necessarily show certain features, including certain transients at the state transition times, and related to the high frequency switching of the regulator 320 ; however these approximations are sufficient for the discussion below).
- the switching frequency can be increases (and cycle time decreased), for example, to restore the margin shown in FIG. 7 A .
- doubling the switching frequency compensates for the doubling of the output current IO.
- such direct relationships between output current IO or other sensed signals and switching frequency are not necessary.
- a number of embodiments adapt the switching frequency of the charge pump 100 or determine the specific switching time instants based on measurements within the charge pump 100 and optionally in the low-voltage and/or high-voltage peripherals coupled to the terminals of the charge pump 100 .
- the controller 350 adapts (e.g., in a closed loop or open loop arrangement) the switching frequency.
- the charge pump 100 For any current up to a maximum rated current with a fixed switching frequency, the charge pump 100 generally operates at a switching frequency lower than (i.e., switching times greater than) a particular minimum frequency determined by that maximum rated current. Therefore, when the current is below the maximum, capacitive losses may be reduced as compared to operating the charge pump 100 at the minimum switching frequency determined by the maximum rated current.
- One approach to implementing this feedback operation is to monitor the intermediate voltage VX and adapt operation of the charge pump to maintain VMIN above a fixed minimum threshold.
- One way to adapt the operation of the charge pump 100 is to adapt a frequency for the switching of the charge pump 100 in a feedback configuration such that as the minimum intermediate voltage VMIN approaches the threshold, the switching frequency is increased, and as it rises above the threshold the switching frequency is reduced.
- One way to set the fixed minimum threshold voltage is as the maximum (e.g., rated) output voltage VO of the regulator 320 , plus a minimum desired margin above that voltage.
- the minimum margin (greater than zero) is required to allow a sufficient voltage differential (VX ⁇ VO) to charge (i.e., increase its current and thereby store energy in) the inductor 326 at a reasonable rate.
- the minimum margin is also related to a guarantee on a maximum duty cycle of the regulator 320 .
- a second approach adapts to the desired output voltage VO of the regulator 320 .
- the regulator 320 may have a maximum output voltage VO rating equal to 3.3 volts. With a desired minimum margin of 0.7 volts, the switching of the charge pump 100 would be controlled to keep the intermediate voltage VX above 4.0 volts. However, if the converter is actually being operated with an output voltage VO of 1.2volts, then the switching frequency of the charge pump 100 can be reduced to the point that the intermediate voltage VX falls as low as 1.9 volts and still maintain the desired margin of 0.7 volts.
- an average of the voltage between the switches 312 , 314 may be used as an estimate of the output voltage VO.
- the switching frequency of the charge pump 100 is adapted to maintain the intermediate voltage VX below a threshold value.
- the threshold can be set such that the intermediate voltage VX lowers or rises a specific percentage below or above the average of the intermediate voltage VX (e.g. 10%). This threshold would track the intermediate voltage VX.
- a ripple relative to an absolute ripple voltage e.g. 100 mV can be used to determine the switching frequency.
- the voltage ripple on the output voltage VO depends (not necessarily linearly) on the voltage ripple on the intermediate voltage VX, and in some examples the switching frequency of the charge pump 100 is increased to reduced the ripple on the output voltage VO to a desired value.
- ripple values can be used instead of using the ripple on the intermediate voltage VX in controlling the switching frequency of the charge pump 100 .
- Other internal voltages and/or currents can be used, for example, voltages across switches or other circuit elements (e.g., transistor switches), and the switching frequency can be adjusted to avoid exceeding rated voltages across the circuit elements.
- control inputs can also be used.
- One such alternative is to measure the duty cycle of the regulator 320 .
- variation in the intermediate voltage VX affects variation in current in the Buck converter's inductor 326 .
- the average of the intermediate voltage VX is generally reduced downward with reducing of the switching frequency of the charge pump 100 .
- the duty cycle of the regulator 320 With the reduction of the average output voltage VO, the duty cycle of the regulator 320 generally increases to maintain the desired output voltage VO. Increasing the duty cycle generally increases the efficiency of a Buck converter. So reducing the switching frequency of the charge pump 100 can increase the efficiency of the regulator 320 .
- the switch frequency can be controlled according to a combination of multiple of the signals (e.g., a linear combination, nonlinear combination using maximum and minimum functions, etc.). In some examples, an approximation of an efficiency of the charge pump is optimized.
- the discussion above focuses on using the controller 350 to adjust the switching frequency of the charge pump 100 in relatively slow scale feedback arrangement.
- the various signals described above as inputs to the controller 350 can be used on an asynchronous operating mode in which the times at which the charge pump 100 switches between cycles is determined according to the measurements.
- a threshold value e.g., 0.7 volts
- the switches in the charge pump 100 are switched together from state one to state two.
- the intermediate voltage VX rises and then again begins to fall, and when VX ⁇ VO again reaches the threshold value, the switches in the charge pump 100 are switched together from state two back to state one.
- a combination of asynchronous switching as well as limits or control on average switching frequency for the charge pump are used.
- the switching frequency of the charge pump 100 decreases as well. This can be problematic at low currents because the frequency could drop below 20 kHz, which is the audible limit for human hearing. Therefore, once the frequency has dropped below a certain limit, a switch 344 closes and introduces a compensation capacitor 342 . This forces the converter into non-adiabatic operation allowing the frequency to be fixed to a lower bound (e.g. 20 kHz). Consequently, the compensation capacitor 342 is introduced when either the duty cycle is low or when the output current IO is low.
- a lower bound e.g. 20 kHz
- a compensation circuit that permits selectively switching a compensation capacitor of a certain fixed capacitance onto the output of the charge pump. More generally, a wide variety of compensation circuits can be controlled.
- One example is a variable capacitor, which can be implemented as a switched capacitor bank, for example, with power of two capacitances.
- the optimal choice of capacitance generally depends on the combination of operating conditions (e.g., average current, pulsed current duty cycle, etc.) and/or circuit configurations (e.g., type of regulators, sources, load, pump capacitors), with the determining of the desired capacitance being based on prior simulation or measurement or based on a mechanism that adjusts the capacitance, for instance, in a feedback arrangement.
- other forms of compensation circuits for example, introducing inductance on the output path, networks of elements (e.g., capacitors, inductors).
- the description focuses on a specific example of a charge pump. Many other configurations of charge pumps, including Dickson pumps with additional stages or parallel phases, and other configurations of charge pumps (e.g., series-parallel), can be controlled according to the same approach.
- the peripherals at the high and/or low voltage terminals are not necessarily regulators, or necessarily maintain substantially constant current.
- the approaches described are applicable to configurations in which a high voltage supply provides energy to a low voltage load, or in which a low voltage supply provides energy to a high voltage load, or bidirectional configurations in which energy may flow in either direction between the high and the low voltage terminal of the charge pump.
- the switching elements can be implemented in a variety of ways, including using Field Effect Transistors (FETs) or diodes, and the capacitors may be integrated into a monolithic device with the switch elements and/or may be external using discrete components. Similarly, at least some of the regulator circuit may in some examples be integrated with some or all of the charge pump in an integrated device.
- FETs Field Effect Transistors
- the capacitors may be integrated into a monolithic device with the switch elements and/or may be external using discrete components.
- the regulator circuit may in some examples be integrated with some or all of the charge pump in an integrated device.
- Implementations of the approaches described above may be integrated into an integrated circuit that includes the switching transistors of the charge pump, either with discrete/off-chip capacitors or integrated capacitors.
- the controller that determines the switching frequency of the charge pump and/or the compensation circuit may be implemented in a different device than the charge pump.
- the controller can use application specific circuitry, a programmable processor/controller, or both.
- the implementation may include software, stored in a tangible machined readable medium (e.g., ROM, etc.) that includes instructions for implementing the control procedures described above.
Abstract
Description
η=VO/(N*VIN)
where η is the efficiency, VO is the measured converter output voltage, VIN is the measured converter input voltage, and N is the charge pump conversion ratio.
Claims (24)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/133,909 USRE49449E1 (en) | 2013-09-16 | 2020-12-24 | Charge pump with temporally-varying adiabaticity |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/027,716 US9041459B2 (en) | 2013-09-16 | 2013-09-16 | Partial adiabatic conversion |
US14/719,815 US9658635B2 (en) | 2013-09-16 | 2015-05-22 | Charge pump with temporally-varying adiabaticity |
US15/460,596 US10162376B2 (en) | 2013-09-16 | 2017-03-16 | Charge pump with temporally-varying adiabaticity |
US17/133,909 USRE49449E1 (en) | 2013-09-16 | 2020-12-24 | Charge pump with temporally-varying adiabaticity |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/460,596 Reissue US10162376B2 (en) | 2013-09-16 | 2017-03-16 | Charge pump with temporally-varying adiabaticity |
Publications (1)
Publication Number | Publication Date |
---|---|
USRE49449E1 true USRE49449E1 (en) | 2023-03-07 |
Family
ID=52666536
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/027,716 Active US9041459B2 (en) | 2013-09-16 | 2013-09-16 | Partial adiabatic conversion |
US14/719,815 Active US9658635B2 (en) | 2013-09-16 | 2015-05-22 | Charge pump with temporally-varying adiabaticity |
US15/460,596 Ceased US10162376B2 (en) | 2013-09-16 | 2017-03-16 | Charge pump with temporally-varying adiabaticity |
US17/133,909 Active USRE49449E1 (en) | 2013-09-16 | 2020-12-24 | Charge pump with temporally-varying adiabaticity |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/027,716 Active US9041459B2 (en) | 2013-09-16 | 2013-09-16 | Partial adiabatic conversion |
US14/719,815 Active US9658635B2 (en) | 2013-09-16 | 2015-05-22 | Charge pump with temporally-varying adiabaticity |
US15/460,596 Ceased US10162376B2 (en) | 2013-09-16 | 2017-03-16 | Charge pump with temporally-varying adiabaticity |
Country Status (7)
Country | Link |
---|---|
US (4) | US9041459B2 (en) |
KR (1) | KR20160056913A (en) |
CN (2) | CN105723599B (en) |
DE (1) | DE112014004237T5 (en) |
GB (2) | GB2534716B (en) |
TW (1) | TW201526493A (en) |
WO (1) | WO2015039079A2 (en) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8619445B1 (en) * | 2013-03-15 | 2013-12-31 | Arctic Sand Technologies, Inc. | Protection of switched capacitor power converter |
TWI584567B (en) * | 2013-08-12 | 2017-05-21 | Idt歐洲有限公司 | A power converter and a method for controlling the same |
US9041459B2 (en) | 2013-09-16 | 2015-05-26 | Arctic Sand Technologies, Inc. | Partial adiabatic conversion |
CN104092372B (en) * | 2014-06-30 | 2017-04-12 | 成都芯源系统有限公司 | Switch regulating circuit and mean current detection circuit and method thereof |
US9491151B2 (en) * | 2015-01-07 | 2016-11-08 | Ememory Technology Inc. | Memory apparatus, charge pump circuit and voltage pumping method thereof |
KR20180004115A (en) | 2015-03-13 | 2018-01-10 | 페레그린 세미컨덕터 코포레이션 | DC-DC transformer with inductor to facilitate charge transport between adiabatic capacitors |
CN109075703A (en) | 2016-03-11 | 2018-12-21 | 派赛公司 | Battery management system with Adiabatic switching capacitor circuit |
EP3229357B1 (en) * | 2016-04-08 | 2020-08-19 | Nxp B.V. | Charge pump with reference voltage modification for avoiding specific frequencies |
GB2558765B (en) * | 2016-10-14 | 2022-05-11 | Cirrus Logic Int Semiconductor Ltd | Charge pump input current limiter |
GB2562330B (en) * | 2016-11-03 | 2022-08-03 | Cirrus Logic Int Semiconductor Ltd | Variable ratio charge pump with peak current and average current limiting circuitry |
CN110024280B (en) * | 2016-11-03 | 2023-12-15 | 思睿逻辑国际半导体有限公司 | Variable ratio charge pump with peak current and average current limiting circuit |
US10594202B1 (en) | 2019-02-15 | 2020-03-17 | Psemi Corporation | Current in-rush limiter |
US10734893B1 (en) * | 2019-05-03 | 2020-08-04 | Psemi Corporation | Driving circuit for switches used in a charge pump |
US10924006B1 (en) | 2019-09-30 | 2021-02-16 | Psemi Corporation | Suppression of rebalancing currents in a switched-capacitor network |
CN111682754B (en) * | 2020-06-09 | 2022-02-15 | 杭州艾诺半导体有限公司 | Hybrid power converter |
DE102020213559B4 (en) * | 2020-10-28 | 2022-05-05 | Infineon Technologies Ag | Determination of information about a connection of a circuit component |
CN117411315B (en) * | 2023-12-15 | 2024-03-22 | 深圳鹏城新能科技有限公司 | Self-adaptive adjustment method, system and storage medium for bootstrap isolated power supply |
Citations (102)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4214174A (en) | 1977-03-25 | 1980-07-22 | Plessey Handel Und Investments Ag | Voltage multiplier employing clock gated transistor chain |
US4812961A (en) | 1987-05-15 | 1989-03-14 | Linear Technology, Inc. | Charge pump circuitry having low saturation voltage and current-limited switch |
US5132606A (en) | 1991-01-07 | 1992-07-21 | Edward Herbert | Method and apparatus for controlling the input impedance of a power converter |
US5301097A (en) | 1992-06-10 | 1994-04-05 | Intel Corporation | Multi-staged charge-pump with staggered clock phases for providing high current capability |
US5563779A (en) | 1994-12-05 | 1996-10-08 | Motorola, Inc. | Method and apparatus for a regulated supply on an integrated circuit |
US5717581A (en) | 1994-06-30 | 1998-02-10 | Sgs-Thomson Microelectronics, Inc. | Charge pump circuit with feedback control |
US5737201A (en) | 1991-07-25 | 1998-04-07 | Centre Nat Rech Scient | Electronic device for electrical energy conversion between a voltage source and a current source by means of controllable switching cells |
US5761058A (en) | 1995-07-26 | 1998-06-02 | Matsushita Electric Works, Ltd. | Power converter apparatus for a discharge lamp |
US5801987A (en) | 1997-03-17 | 1998-09-01 | Motorola, Inc. | Automatic transition charge pump for nonvolatile memories |
JPH10327573A (en) | 1997-05-23 | 1998-12-08 | Fuji Electric Co Ltd | Semiconductor stack of power conversion device |
US5907484A (en) | 1996-04-25 | 1999-05-25 | Programmable Microelectronics Corp. | Charge pump |
JPH11235053A (en) | 1998-02-10 | 1999-08-27 | Takaoka Electric Mfg Co Ltd | Power converter stack |
US5978283A (en) | 1998-07-02 | 1999-11-02 | Aplus Flash Technology, Inc. | Charge pump circuits |
US6107864A (en) | 1998-08-24 | 2000-08-22 | Mitsubishi Denki Kabushiki Kaisha | Charge pump circuit |
US6169457B1 (en) | 1997-10-16 | 2001-01-02 | Texas Instruments Incorporated | Frequency synthesizer with a switched capacitor compensation circuit |
US6255896B1 (en) | 1999-09-27 | 2001-07-03 | Intel Corporation | Method and apparatus for rapid initialization of charge pump circuits |
US6476666B1 (en) | 2001-05-30 | 2002-11-05 | Alliance Semiconductor Corporation | Bootstrapped charge pump |
US6486728B2 (en) | 2001-03-16 | 2002-11-26 | Matrix Semiconductor, Inc. | Multi-stage charge pump |
US6501325B1 (en) | 2001-01-18 | 2002-12-31 | Cypress Semiconductor Corp. | Low voltage supply higher efficiency cross-coupled high voltage charge pumps |
US6504422B1 (en) | 2000-11-21 | 2003-01-07 | Semtech Corporation | Charge pump with current limiting circuit |
US20030169096A1 (en) | 2000-09-15 | 2003-09-11 | Infineon Technologies North America Corp. | Method to improve charge pump reliability, efficiency and size |
US20030227280A1 (en) | 2002-01-31 | 2003-12-11 | Patrizio Vinciarelli | Factorized power architecture with point of load sine amplitude converters |
US20040041620A1 (en) | 2002-09-03 | 2004-03-04 | D'angelo Kevin P. | LED driver with increased efficiency |
US20040080964A1 (en) | 2002-10-25 | 2004-04-29 | Nokia Corporation | Voltage multiplier |
US6759766B2 (en) | 2001-12-18 | 2004-07-06 | Fuji Xerox Co., Ltd. | Power supply apparatus and image forming apparatus using the same |
US20050007184A1 (en) | 2003-06-19 | 2005-01-13 | Seiko Epson Corporation | Booster circuit, semiconductor device, and display device |
US20050068073A1 (en) * | 2003-09-26 | 2005-03-31 | Xudong Shi | Regulated adaptive-bandwidth PLL/DLL using self-biasing current from a VCO/VCDL |
US20050136873A1 (en) * | 2003-12-19 | 2005-06-23 | Kim Hea J. | Phase locked loop calibration |
US6927441B2 (en) | 2001-03-20 | 2005-08-09 | Stmicroelectronics S.R.L. | Variable stage charge pump |
US20050207133A1 (en) | 2004-03-11 | 2005-09-22 | Mark Pavier | Embedded power management control circuit |
US6980181B2 (en) | 2001-02-08 | 2005-12-27 | Seiko Instruments Inc. | LED drive circuit |
WO2006093600A2 (en) | 2005-02-28 | 2006-09-08 | Integral Wave Technologies, Inc. | Trench capacitor power supply system and method |
US7145382B2 (en) | 2004-01-02 | 2006-12-05 | National Chiao Tung University | Charge pump circuit suitable for low-voltage process |
US20070018700A1 (en) | 2005-07-21 | 2007-01-25 | Novatek Microelectronics Corp. | Charge pump control circuit and control method thereof |
US7190210B2 (en) | 2004-03-25 | 2007-03-13 | Integral Wave Technologies, Inc. | Switched-capacitor power supply system and method |
US7224062B2 (en) | 2005-01-21 | 2007-05-29 | Via Technologies, Inc. | Chip package with embedded panel-shaped component |
US7250810B1 (en) | 2005-12-27 | 2007-07-31 | Aimtron Technology Corp. | Multi-mode charge pump drive circuit with improved input noise at a moment of mode change |
US20070210774A1 (en) | 2006-03-08 | 2007-09-13 | Matsushita Electric Industrial Co., Ltd. | Switching power supply circuitry |
US20070230221A1 (en) | 2006-02-21 | 2007-10-04 | Lim Michele H | Method and Apparatus for Three-Dimensional Integration of Embedded Power Module |
US20080150621A1 (en) | 2006-12-22 | 2008-06-26 | Lesso John P | Charge pump circuit and methods of operation thereof |
US20080157733A1 (en) | 2006-12-30 | 2008-07-03 | Advanced Analogic Technologies, Inc. | High-efficiency DC/DC voltage converter including up inductive switching pre-regulator and capacitive switching post-converter |
US7408330B2 (en) | 2006-06-06 | 2008-08-05 | Skyworks Solutions, Inc. | Voltage up-conversion circuit using low voltage transistors |
US20080239772A1 (en) | 2007-03-30 | 2008-10-02 | Intel Corporation | Switched capacitor converters |
US7511978B2 (en) | 2006-05-24 | 2009-03-31 | On-Right Electronics (Shanghai) Co., Ltd. | System and method for providing switching to power regulators |
CN101399496A (en) | 2007-09-27 | 2009-04-01 | 群联电子股份有限公司 | Converter circuit with pulse width frequency modulation, method and controller thereof |
US20090102439A1 (en) | 2007-08-08 | 2009-04-23 | Advanced Analogic Technologies, Inc. | Step-up DC/DC voltage converter with improved transient current capability |
WO2009112900A1 (en) | 2008-03-12 | 2009-09-17 | Sony Ericsson Mobile Communications Ab | Switched mode voltage converter with low-current mode and methods of performing voltage conversion with low-current mode |
US7595682B2 (en) | 2005-02-24 | 2009-09-29 | Macronix International Co., Ltd. | Multi-stage charge pump without threshold drop with frequency modulation between embedded mode operations |
US20090257211A1 (en) | 2008-03-04 | 2009-10-15 | Kabushiki Kaisha Toyota Jidoshokki | Power Converter Apparatus |
US20090278520A1 (en) | 2008-05-08 | 2009-11-12 | Perreault David J | Power Converter with Capacitive Energy Transfer and Fast Dynamic Response |
US7659760B2 (en) | 2006-01-31 | 2010-02-09 | Fujitsu Limited | PLL circuit and semiconductor integrated device |
JP2010045943A (en) | 2008-08-18 | 2010-02-25 | Rohm Co Ltd | Voltage booster circuit and power supply apparatus using it |
US7679430B2 (en) | 2007-05-25 | 2010-03-16 | Atmel Corporation | Low voltage charge pump |
US7705672B1 (en) | 2007-02-12 | 2010-04-27 | Manuel De Jesus Rodriguez | Buck converters as power amplifier |
US20100110741A1 (en) | 2008-10-31 | 2010-05-06 | University Of Florida Research Foundation, Inc. | Miniature high voltage/current ac switch using low voltage single supply control |
WO2010056912A1 (en) | 2008-11-12 | 2010-05-20 | Qualcomm Incorporated | Techniques for minimizing control voltage ripple due to charge pump leakage in phase locked loop circuits |
US7724551B2 (en) | 2004-12-06 | 2010-05-25 | Rohm Co., Ltd. | Step-up circuit and portable device using it |
US20100140736A1 (en) | 2008-12-10 | 2010-06-10 | Stats Chippac, Ltd. | Semiconductor Device and Method of Embedding Integrated Passive Devices into the Package Electrically Interconnected Using Conductive Pillars |
US20100156370A1 (en) | 2008-12-23 | 2010-06-24 | Richtek Technology Corporation | Switching regulator and method for eliminating beat oscillation |
US20100202161A1 (en) | 2009-02-12 | 2010-08-12 | Sims Nicholas A | Power converter with automatic mode switching |
US7777459B2 (en) | 2006-12-30 | 2010-08-17 | Advanced Analogic Technologies, Inc. | High-efficiency DC/DC voltage converter including capacitive switching pre-converter and down inductive switching post-regulator |
US20100214746A1 (en) | 2008-10-02 | 2010-08-26 | Lotfi Ashraf W | Module Having a Stacked Magnetic Device and Semiconductor Device and Method of Forming the Same |
US20100244585A1 (en) | 2009-03-26 | 2010-09-30 | General Electric Company | High-temperature capacitors and methods of making the same |
US20100244189A1 (en) | 2007-05-10 | 2010-09-30 | Ipdia | Integration substrate with a ultra-high-density capacitor and a through-substrate via |
US20100244935A1 (en) | 2007-11-05 | 2010-09-30 | Electronics And Telecommunications Research Institute | High-voltage cmos charge pump |
US7807499B2 (en) | 2004-09-29 | 2010-10-05 | Murata Manufacturing Co., Ltd. | Stacked module and manufacturing method thereof |
US7808324B1 (en) | 2009-03-17 | 2010-10-05 | Cirrus Logic, Inc. | Operating environment and process position selected charge-pump operating mode in an audio power amplifier integrated circuit |
US20110050325A1 (en) * | 2006-01-19 | 2011-03-03 | Gregor Schatzberger | Circuit Arrangement for Voltage Supply and Method |
US20110062940A1 (en) | 2009-09-14 | 2011-03-17 | Vladimir Shvartsman | High Efficiency Charge-and-Add Adjustable DC-DC Converter |
US7999601B2 (en) | 2005-04-01 | 2011-08-16 | Freescale Semiconductor, Inc. | Charge pump and control scheme |
US8018216B2 (en) | 2007-07-13 | 2011-09-13 | Denso Corporation | Power supply voltage booster |
US20110241767A1 (en) | 2008-12-18 | 2011-10-06 | Nxp B.V. | Charge-pump circuit |
US8035148B2 (en) | 2005-05-17 | 2011-10-11 | Analog Devices, Inc. | Micromachined transducer integrated with a charge pump |
US8040174B2 (en) | 2008-06-19 | 2011-10-18 | Sandisk Il Ltd. | Charge coupled pump-efficient charge pump regulator with MOS capacitor |
US8048766B2 (en) | 2003-06-24 | 2011-11-01 | Commissariat A L'energie Atomique | Integrated circuit on high performance chip |
US20110273151A1 (en) | 2006-08-31 | 2011-11-10 | John Paul Lesso | Dc-dc converter circuits, and methods and apparatus including such circuits |
US20110304310A1 (en) | 2010-06-09 | 2011-12-15 | Sony Corporation | Multivibrator circuit and voltage converting circuit |
US8111054B2 (en) | 2007-04-30 | 2012-02-07 | Novatek Microelectronics Corp. | Voltage conversion device capable of enhancing conversion efficiency |
US8159091B2 (en) | 2009-04-01 | 2012-04-17 | Chimei Innolux Corporation | Switch circuit of DC/DC converter configured to conduct various modes for charging/discharging |
US20120126909A1 (en) | 2010-11-18 | 2012-05-24 | Mccune Jr Earl W | Duty cycle translator methods and apparatus |
US8193604B2 (en) | 2008-12-08 | 2012-06-05 | Stats Chippac, Ltd. | Semiconductor package with semiconductor core structure and method of forming the same |
US20120146177A1 (en) | 2010-12-09 | 2012-06-14 | Stats Chippac, Ltd. | Semiconductor Device and Method of Forming Recesses in Substrate for Same Size or Different Sized Die with Vertical Integration |
EP2469694A1 (en) | 2010-12-23 | 2012-06-27 | Wolfson Microelectronics plc | Charge pump circuit |
US20120212201A1 (en) | 2011-02-17 | 2012-08-23 | Samsung Electronics Co., Ltd. | Power supply apparatuses for preventing latch-up of charge pump and methods thereof |
WO2012151466A2 (en) | 2011-05-05 | 2012-11-08 | Arctic Sand Technologies, Inc. | Dc-dc converter with modular stages |
US8339184B2 (en) | 2010-10-29 | 2012-12-25 | Canaan Microelectronics Corporation Limited | Gate voltage boosting element for charge pump |
US8350549B2 (en) | 2010-10-29 | 2013-01-08 | Panasonic Corporation | Converter with switches having a diode region that is unipolar-conductive only in the reverse direction |
US8384467B1 (en) | 2012-03-22 | 2013-02-26 | Cypress Semiconductor Corporation | Reconfigurable charge pump |
US20130049714A1 (en) | 2011-08-28 | 2013-02-28 | Yueh Mei Chiu | PWM Control Circuit of A Converter And the Control Method Thereof |
US8395914B2 (en) | 2007-05-10 | 2013-03-12 | Nxp B.V. | DC-to-DC converter comprising a reconfigurable capacitor unit |
US20130094157A1 (en) | 2011-10-18 | 2013-04-18 | Arctic Sand Technologies, Inc. | Power converters with integrated capacitors |
US8436674B1 (en) | 2012-03-23 | 2013-05-07 | Altasens, Inc. | Self-scaled voltage booster |
US8456874B2 (en) | 2009-07-15 | 2013-06-04 | Ramot At Tel Aviv University Ltd. | Partial arbitrary matrix topology (PMAT) and general transposed serial-parallel topology (GTSP) capacitive matrix converters |
US20130154600A1 (en) | 2011-12-19 | 2013-06-20 | Arctic Sand Technologies, Inc. | Control of power converters with capacitive energy transfer |
US8503203B1 (en) | 2012-10-16 | 2013-08-06 | Arctic Sand Technologies, Inc. | Pre-charge of switched capacitor circuits with cascoded drivers |
US20130245487A1 (en) | 2012-03-13 | 2013-09-19 | Vigilo Networks, Inc. | Method and system for determining body impedance |
US20130287231A1 (en) | 2012-04-30 | 2013-10-31 | Infineon Technologies Ag | System and Method for a Programmable Voltage Source |
US8619443B2 (en) | 2010-09-29 | 2013-12-31 | The Powerwise Group, Inc. | System and method to boost voltage |
US8619445B1 (en) * | 2013-03-15 | 2013-12-31 | Arctic Sand Technologies, Inc. | Protection of switched capacitor power converter |
US20140167853A1 (en) | 2012-12-19 | 2014-06-19 | Mitsubishi Electric Corporation | Power amplifier |
WO2015039077A1 (en) | 2013-09-16 | 2015-03-19 | Arctic Sand Technologies, Inc. | Charge pump timing control |
WO2015039079A2 (en) | 2013-09-16 | 2015-03-19 | Arctic Sand Technologies, Inc. | Partial adiabatic conversion |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101071981B (en) * | 2006-05-11 | 2010-09-29 | 中华映管股份有限公司 | Voltage-rising DC/DC converter |
-
2013
- 2013-09-16 US US14/027,716 patent/US9041459B2/en active Active
-
2014
- 2014-09-15 TW TW103131753A patent/TW201526493A/en unknown
- 2014-09-16 DE DE112014004237.4T patent/DE112014004237T5/en not_active Withdrawn
- 2014-09-16 GB GB1604221.0A patent/GB2534716B/en active Active
- 2014-09-16 KR KR1020167009267A patent/KR20160056913A/en not_active Application Discontinuation
- 2014-09-16 GB GB2107059.4A patent/GB2592816B/en active Active
- 2014-09-16 WO PCT/US2014/055809 patent/WO2015039079A2/en active Application Filing
- 2014-09-16 CN CN201480062695.4A patent/CN105723599B/en active Active
- 2014-09-16 CN CN201911107739.1A patent/CN110784103B/en active Active
-
2015
- 2015-05-22 US US14/719,815 patent/US9658635B2/en active Active
-
2017
- 2017-03-16 US US15/460,596 patent/US10162376B2/en not_active Ceased
-
2020
- 2020-12-24 US US17/133,909 patent/USRE49449E1/en active Active
Patent Citations (136)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4214174A (en) | 1977-03-25 | 1980-07-22 | Plessey Handel Und Investments Ag | Voltage multiplier employing clock gated transistor chain |
US4812961A (en) | 1987-05-15 | 1989-03-14 | Linear Technology, Inc. | Charge pump circuitry having low saturation voltage and current-limited switch |
US5132606A (en) | 1991-01-07 | 1992-07-21 | Edward Herbert | Method and apparatus for controlling the input impedance of a power converter |
US5737201A (en) | 1991-07-25 | 1998-04-07 | Centre Nat Rech Scient | Electronic device for electrical energy conversion between a voltage source and a current source by means of controllable switching cells |
US5301097A (en) | 1992-06-10 | 1994-04-05 | Intel Corporation | Multi-staged charge-pump with staggered clock phases for providing high current capability |
US5717581A (en) | 1994-06-30 | 1998-02-10 | Sgs-Thomson Microelectronics, Inc. | Charge pump circuit with feedback control |
US5563779A (en) | 1994-12-05 | 1996-10-08 | Motorola, Inc. | Method and apparatus for a regulated supply on an integrated circuit |
US5761058A (en) | 1995-07-26 | 1998-06-02 | Matsushita Electric Works, Ltd. | Power converter apparatus for a discharge lamp |
US5907484A (en) | 1996-04-25 | 1999-05-25 | Programmable Microelectronics Corp. | Charge pump |
US5801987A (en) | 1997-03-17 | 1998-09-01 | Motorola, Inc. | Automatic transition charge pump for nonvolatile memories |
JPH10327573A (en) | 1997-05-23 | 1998-12-08 | Fuji Electric Co Ltd | Semiconductor stack of power conversion device |
US6169457B1 (en) | 1997-10-16 | 2001-01-02 | Texas Instruments Incorporated | Frequency synthesizer with a switched capacitor compensation circuit |
JPH11235053A (en) | 1998-02-10 | 1999-08-27 | Takaoka Electric Mfg Co Ltd | Power converter stack |
US5978283A (en) | 1998-07-02 | 1999-11-02 | Aplus Flash Technology, Inc. | Charge pump circuits |
US6107864A (en) | 1998-08-24 | 2000-08-22 | Mitsubishi Denki Kabushiki Kaisha | Charge pump circuit |
US6255896B1 (en) | 1999-09-27 | 2001-07-03 | Intel Corporation | Method and apparatus for rapid initialization of charge pump circuits |
US20030169096A1 (en) | 2000-09-15 | 2003-09-11 | Infineon Technologies North America Corp. | Method to improve charge pump reliability, efficiency and size |
US6504422B1 (en) | 2000-11-21 | 2003-01-07 | Semtech Corporation | Charge pump with current limiting circuit |
US6501325B1 (en) | 2001-01-18 | 2002-12-31 | Cypress Semiconductor Corp. | Low voltage supply higher efficiency cross-coupled high voltage charge pumps |
US6980181B2 (en) | 2001-02-08 | 2005-12-27 | Seiko Instruments Inc. | LED drive circuit |
US6486728B2 (en) | 2001-03-16 | 2002-11-26 | Matrix Semiconductor, Inc. | Multi-stage charge pump |
US6927441B2 (en) | 2001-03-20 | 2005-08-09 | Stmicroelectronics S.R.L. | Variable stage charge pump |
US6476666B1 (en) | 2001-05-30 | 2002-11-05 | Alliance Semiconductor Corporation | Bootstrapped charge pump |
US6759766B2 (en) | 2001-12-18 | 2004-07-06 | Fuji Xerox Co., Ltd. | Power supply apparatus and image forming apparatus using the same |
US20030227280A1 (en) | 2002-01-31 | 2003-12-11 | Patrizio Vinciarelli | Factorized power architecture with point of load sine amplitude converters |
US20040041620A1 (en) | 2002-09-03 | 2004-03-04 | D'angelo Kevin P. | LED driver with increased efficiency |
US20040080964A1 (en) | 2002-10-25 | 2004-04-29 | Nokia Corporation | Voltage multiplier |
US20050007184A1 (en) | 2003-06-19 | 2005-01-13 | Seiko Epson Corporation | Booster circuit, semiconductor device, and display device |
US8048766B2 (en) | 2003-06-24 | 2011-11-01 | Commissariat A L'energie Atomique | Integrated circuit on high performance chip |
US20050068073A1 (en) * | 2003-09-26 | 2005-03-31 | Xudong Shi | Regulated adaptive-bandwidth PLL/DLL using self-biasing current from a VCO/VCDL |
US20050136873A1 (en) * | 2003-12-19 | 2005-06-23 | Kim Hea J. | Phase locked loop calibration |
US7145382B2 (en) | 2004-01-02 | 2006-12-05 | National Chiao Tung University | Charge pump circuit suitable for low-voltage process |
US20050207133A1 (en) | 2004-03-11 | 2005-09-22 | Mark Pavier | Embedded power management control circuit |
US7190210B2 (en) | 2004-03-25 | 2007-03-13 | Integral Wave Technologies, Inc. | Switched-capacitor power supply system and method |
US7239194B2 (en) | 2004-03-25 | 2007-07-03 | Integral Wave Technologies, Inc. | Trench capacitor power supply system and method |
US7807499B2 (en) | 2004-09-29 | 2010-10-05 | Murata Manufacturing Co., Ltd. | Stacked module and manufacturing method thereof |
US7724551B2 (en) | 2004-12-06 | 2010-05-25 | Rohm Co., Ltd. | Step-up circuit and portable device using it |
US7224062B2 (en) | 2005-01-21 | 2007-05-29 | Via Technologies, Inc. | Chip package with embedded panel-shaped component |
US7595682B2 (en) | 2005-02-24 | 2009-09-29 | Macronix International Co., Ltd. | Multi-stage charge pump without threshold drop with frequency modulation between embedded mode operations |
WO2006093600A2 (en) | 2005-02-28 | 2006-09-08 | Integral Wave Technologies, Inc. | Trench capacitor power supply system and method |
US7999601B2 (en) | 2005-04-01 | 2011-08-16 | Freescale Semiconductor, Inc. | Charge pump and control scheme |
US8035148B2 (en) | 2005-05-17 | 2011-10-11 | Analog Devices, Inc. | Micromachined transducer integrated with a charge pump |
US20070018700A1 (en) | 2005-07-21 | 2007-01-25 | Novatek Microelectronics Corp. | Charge pump control circuit and control method thereof |
US7250810B1 (en) | 2005-12-27 | 2007-07-31 | Aimtron Technology Corp. | Multi-mode charge pump drive circuit with improved input noise at a moment of mode change |
US20110050325A1 (en) * | 2006-01-19 | 2011-03-03 | Gregor Schatzberger | Circuit Arrangement for Voltage Supply and Method |
US7659760B2 (en) | 2006-01-31 | 2010-02-09 | Fujitsu Limited | PLL circuit and semiconductor integrated device |
US20070230221A1 (en) | 2006-02-21 | 2007-10-04 | Lim Michele H | Method and Apparatus for Three-Dimensional Integration of Embedded Power Module |
US20070210774A1 (en) | 2006-03-08 | 2007-09-13 | Matsushita Electric Industrial Co., Ltd. | Switching power supply circuitry |
US7511978B2 (en) | 2006-05-24 | 2009-03-31 | On-Right Electronics (Shanghai) Co., Ltd. | System and method for providing switching to power regulators |
US7408330B2 (en) | 2006-06-06 | 2008-08-05 | Skyworks Solutions, Inc. | Voltage up-conversion circuit using low voltage transistors |
US20110273151A1 (en) | 2006-08-31 | 2011-11-10 | John Paul Lesso | Dc-dc converter circuits, and methods and apparatus including such circuits |
US20080150621A1 (en) | 2006-12-22 | 2008-06-26 | Lesso John P | Charge pump circuit and methods of operation thereof |
US7812579B2 (en) | 2006-12-30 | 2010-10-12 | Advanced Analogic Technologies, Inc. | High-efficiency DC/DC voltage converter including capacitive switching pre-converter and up inductive switching post-regulator |
US20080157732A1 (en) | 2006-12-30 | 2008-07-03 | Advanced Analogic Technologies, Inc. | High-efficiency DC/DC voltage converter including capacitive switching pre-converter and up inductive switching post-regulator |
US7777459B2 (en) | 2006-12-30 | 2010-08-17 | Advanced Analogic Technologies, Inc. | High-efficiency DC/DC voltage converter including capacitive switching pre-converter and down inductive switching post-regulator |
US20080157733A1 (en) | 2006-12-30 | 2008-07-03 | Advanced Analogic Technologies, Inc. | High-efficiency DC/DC voltage converter including up inductive switching pre-regulator and capacitive switching post-converter |
US7786712B2 (en) | 2006-12-30 | 2010-08-31 | Advanced Analogic Technologies, Inc. | High-efficiency DC/DC voltage converter including up inductive switching pre-regulator and capacitive switching post-converter |
US7782027B2 (en) | 2006-12-30 | 2010-08-24 | Advanced Analogic Technologies, Inc. | High-efficiency DC/DC voltage converter including down inductive switching pre-regulator and capacitive switching post-converter |
US7705672B1 (en) | 2007-02-12 | 2010-04-27 | Manuel De Jesus Rodriguez | Buck converters as power amplifier |
US20080239772A1 (en) | 2007-03-30 | 2008-10-02 | Intel Corporation | Switched capacitor converters |
US8111054B2 (en) | 2007-04-30 | 2012-02-07 | Novatek Microelectronics Corp. | Voltage conversion device capable of enhancing conversion efficiency |
US20100244189A1 (en) | 2007-05-10 | 2010-09-30 | Ipdia | Integration substrate with a ultra-high-density capacitor and a through-substrate via |
US8395914B2 (en) | 2007-05-10 | 2013-03-12 | Nxp B.V. | DC-to-DC converter comprising a reconfigurable capacitor unit |
US7679430B2 (en) | 2007-05-25 | 2010-03-16 | Atmel Corporation | Low voltage charge pump |
US8018216B2 (en) | 2007-07-13 | 2011-09-13 | Denso Corporation | Power supply voltage booster |
US20090102439A1 (en) | 2007-08-08 | 2009-04-23 | Advanced Analogic Technologies, Inc. | Step-up DC/DC voltage converter with improved transient current capability |
CN101399496A (en) | 2007-09-27 | 2009-04-01 | 群联电子股份有限公司 | Converter circuit with pulse width frequency modulation, method and controller thereof |
US20100244935A1 (en) | 2007-11-05 | 2010-09-30 | Electronics And Telecommunications Research Institute | High-voltage cmos charge pump |
US20090257211A1 (en) | 2008-03-04 | 2009-10-15 | Kabushiki Kaisha Toyota Jidoshokki | Power Converter Apparatus |
WO2009112900A1 (en) | 2008-03-12 | 2009-09-17 | Sony Ericsson Mobile Communications Ab | Switched mode voltage converter with low-current mode and methods of performing voltage conversion with low-current mode |
US7928705B2 (en) | 2008-03-12 | 2011-04-19 | Sony Ericsson Mobile Communications Ab | Switched mode voltage converter with low-current mode and methods of performing voltage conversion with low-current mode |
US20090278520A1 (en) | 2008-05-08 | 2009-11-12 | Perreault David J | Power Converter with Capacitive Energy Transfer and Fast Dynamic Response |
US20120313602A1 (en) | 2008-05-08 | 2012-12-13 | Massachusetts Institute Of Technology | Power Converter With Capacitive Energy Transfer And Fast Dynamic Response |
US8212541B2 (en) | 2008-05-08 | 2012-07-03 | Massachusetts Institute Of Technology | Power converter with capacitive energy transfer and fast dynamic response |
US20120326684A1 (en) | 2008-05-08 | 2012-12-27 | Massachusetts Institute Of Technology | Power Converter With Capacitive Energy Transfer And Fast Dynamic Response |
US8040174B2 (en) | 2008-06-19 | 2011-10-18 | Sandisk Il Ltd. | Charge coupled pump-efficient charge pump regulator with MOS capacitor |
JP2010045943A (en) | 2008-08-18 | 2010-02-25 | Rohm Co Ltd | Voltage booster circuit and power supply apparatus using it |
US20100214746A1 (en) | 2008-10-02 | 2010-08-26 | Lotfi Ashraf W | Module Having a Stacked Magnetic Device and Semiconductor Device and Method of Forming the Same |
US20100110741A1 (en) | 2008-10-31 | 2010-05-06 | University Of Florida Research Foundation, Inc. | Miniature high voltage/current ac switch using low voltage single supply control |
CN102210102A (en) | 2008-11-12 | 2011-10-05 | 高通股份有限公司 | Techniques for minimizing control voltage ripple due to charge pump leakage in phase locked loop circuits |
WO2010056912A1 (en) | 2008-11-12 | 2010-05-20 | Qualcomm Incorporated | Techniques for minimizing control voltage ripple due to charge pump leakage in phase locked loop circuits |
US8164369B2 (en) * | 2008-11-12 | 2012-04-24 | Qualcomm Incorporated | Techniques for minimizing control voltage noise due to charge pump leakage in phase locked loop circuits |
US8193604B2 (en) | 2008-12-08 | 2012-06-05 | Stats Chippac, Ltd. | Semiconductor package with semiconductor core structure and method of forming the same |
US20110163414A1 (en) | 2008-12-10 | 2011-07-07 | STATS ChiPAC, Ltd. | Semiconductor Device Having Embedded Integrated Passive Devices Electrically Interconnected Using Conductive Pillars |
US20100140736A1 (en) | 2008-12-10 | 2010-06-10 | Stats Chippac, Ltd. | Semiconductor Device and Method of Embedding Integrated Passive Devices into the Package Electrically Interconnected Using Conductive Pillars |
US20110241767A1 (en) | 2008-12-18 | 2011-10-06 | Nxp B.V. | Charge-pump circuit |
US20100156370A1 (en) | 2008-12-23 | 2010-06-24 | Richtek Technology Corporation | Switching regulator and method for eliminating beat oscillation |
US20100202161A1 (en) | 2009-02-12 | 2010-08-12 | Sims Nicholas A | Power converter with automatic mode switching |
US7808324B1 (en) | 2009-03-17 | 2010-10-05 | Cirrus Logic, Inc. | Operating environment and process position selected charge-pump operating mode in an audio power amplifier integrated circuit |
US20100244585A1 (en) | 2009-03-26 | 2010-09-30 | General Electric Company | High-temperature capacitors and methods of making the same |
US8159091B2 (en) | 2009-04-01 | 2012-04-17 | Chimei Innolux Corporation | Switch circuit of DC/DC converter configured to conduct various modes for charging/discharging |
US8456874B2 (en) | 2009-07-15 | 2013-06-04 | Ramot At Tel Aviv University Ltd. | Partial arbitrary matrix topology (PMAT) and general transposed serial-parallel topology (GTSP) capacitive matrix converters |
US20110062940A1 (en) | 2009-09-14 | 2011-03-17 | Vladimir Shvartsman | High Efficiency Charge-and-Add Adjustable DC-DC Converter |
US20110304310A1 (en) | 2010-06-09 | 2011-12-15 | Sony Corporation | Multivibrator circuit and voltage converting circuit |
US8619443B2 (en) | 2010-09-29 | 2013-12-31 | The Powerwise Group, Inc. | System and method to boost voltage |
US8350549B2 (en) | 2010-10-29 | 2013-01-08 | Panasonic Corporation | Converter with switches having a diode region that is unipolar-conductive only in the reverse direction |
US8339184B2 (en) | 2010-10-29 | 2012-12-25 | Canaan Microelectronics Corporation Limited | Gate voltage boosting element for charge pump |
US20120126909A1 (en) | 2010-11-18 | 2012-05-24 | Mccune Jr Earl W | Duty cycle translator methods and apparatus |
US20120146177A1 (en) | 2010-12-09 | 2012-06-14 | Stats Chippac, Ltd. | Semiconductor Device and Method of Forming Recesses in Substrate for Same Size or Different Sized Die with Vertical Integration |
EP2469694A1 (en) | 2010-12-23 | 2012-06-27 | Wolfson Microelectronics plc | Charge pump circuit |
US20120212201A1 (en) | 2011-02-17 | 2012-08-23 | Samsung Electronics Co., Ltd. | Power supply apparatuses for preventing latch-up of charge pump and methods thereof |
WO2012151466A2 (en) | 2011-05-05 | 2012-11-08 | Arctic Sand Technologies, Inc. | Dc-dc converter with modular stages |
US20130229841A1 (en) | 2011-05-05 | 2013-09-05 | Arctic Sand Technologies, Inc. | Dc-dc converter with modular stages |
US20130049714A1 (en) | 2011-08-28 | 2013-02-28 | Yueh Mei Chiu | PWM Control Circuit of A Converter And the Control Method Thereof |
US20130094157A1 (en) | 2011-10-18 | 2013-04-18 | Arctic Sand Technologies, Inc. | Power converters with integrated capacitors |
WO2013059446A1 (en) | 2011-10-18 | 2013-04-25 | Arctic Sand Technologies, Inc. | Power converters with integrated capacitors |
US20130154600A1 (en) | 2011-12-19 | 2013-06-20 | Arctic Sand Technologies, Inc. | Control of power converters with capacitive energy transfer |
WO2013096416A1 (en) | 2011-12-19 | 2013-06-27 | Arctic Sand Technologies, Inc. | Control of power converters with capacitive energy transfer |
US20130245487A1 (en) | 2012-03-13 | 2013-09-19 | Vigilo Networks, Inc. | Method and system for determining body impedance |
US8384467B1 (en) | 2012-03-22 | 2013-02-26 | Cypress Semiconductor Corporation | Reconfigurable charge pump |
US8436674B1 (en) | 2012-03-23 | 2013-05-07 | Altasens, Inc. | Self-scaled voltage booster |
US20130287231A1 (en) | 2012-04-30 | 2013-10-31 | Infineon Technologies Ag | System and Method for a Programmable Voltage Source |
US8503203B1 (en) | 2012-10-16 | 2013-08-06 | Arctic Sand Technologies, Inc. | Pre-charge of switched capacitor circuits with cascoded drivers |
US20140167853A1 (en) | 2012-12-19 | 2014-06-19 | Mitsubishi Electric Corporation | Power amplifier |
US8619445B1 (en) * | 2013-03-15 | 2013-12-31 | Arctic Sand Technologies, Inc. | Protection of switched capacitor power converter |
WO2015039079A2 (en) | 2013-09-16 | 2015-03-19 | Arctic Sand Technologies, Inc. | Partial adiabatic conversion |
DE112014004237T5 (en) | 2013-09-16 | 2016-06-09 | Arctic Sand Technologies, Inc. | Partial adiabatic transformation |
US20150077175A1 (en) | 2013-09-16 | 2015-03-19 | Arctic Sand Technologies, Inc. | Charge pump timing control |
US20150077176A1 (en) | 2013-09-16 | 2015-03-19 | Arctic Sand Technologies, Inc. | Partial adiabatic conversion |
US9041459B2 (en) | 2013-09-16 | 2015-05-26 | Arctic Sand Technologies, Inc. | Partial adiabatic conversion |
TW201526493A (en) | 2013-09-16 | 2015-07-01 | Arctic Sand Technologies Inc | Partial adiabatic conversion |
TW201530997A (en) | 2013-09-16 | 2015-08-01 | Arctic Sand Technologies Inc | Charge pump timing control |
US20150326113A1 (en) | 2013-09-16 | 2015-11-12 | Arctic Sand Technologies, Inc. | Charge pump with temporally-varying adiabaticity |
KR20160056913A (en) | 2013-09-16 | 2016-05-20 | 아크틱 샌드 테크놀로지스, 인크. | Partial adiabatic conversion |
KR20160056912A (en) | 2013-09-16 | 2016-05-20 | 아크틱 샌드 테크놀로지스, 인크. | Charge pump timing control |
GB2532686A (en) | 2013-09-16 | 2016-05-25 | Arctic Sand Technologies Inc | Charge pump timing control |
WO2015039077A1 (en) | 2013-09-16 | 2015-03-19 | Arctic Sand Technologies, Inc. | Charge pump timing control |
DE112014004225T5 (en) | 2013-09-16 | 2016-06-16 | Arctic Sand Technologies, Inc. | Charge pumps timing |
CN105723599A (en) | 2013-09-16 | 2016-06-29 | 北极砂技术有限公司 | Partial adiabatic conversion |
GB2534716A (en) | 2013-09-16 | 2016-08-03 | Arctic Sand Technologies Inc | Partial adiabatic conversion |
CN105874398A (en) | 2013-09-16 | 2016-08-17 | 北极砂技术有限公司 | Charge pump timing control |
US9658635B2 (en) | 2013-09-16 | 2017-05-23 | Arctic Sand Technologies, Inc. | Charge pump with temporally-varying adiabaticity |
US9742266B2 (en) | 2013-09-16 | 2017-08-22 | Arctic Sand Technologies, Inc. | Charge pump timing control |
US20170285679A1 (en) | 2013-09-16 | 2017-10-05 | Arctic Sand Technologies, Inc. | Charge pump with temporally-varying adiabaticity |
US20180006554A1 (en) | 2013-09-16 | 2018-01-04 | Peregrine Semiconductor Corporation | Charge pump timing control |
US10162376B2 (en) | 2013-09-16 | 2018-12-25 | Psemi Corporation | Charge pump with temporally-varying adiabaticity |
Non-Patent Citations (152)
Title |
---|
Abutbul—"Step-Up Switching-Mode Converter with High Voltage Gain Using a Switched-Capacitor Circuit" IEEE Transactions on Circuits and Systems I, vol. 50, pp. 1098-1102, Aug. 2003, Doc 7587. |
Axelrod—"Single-switch single stage switched-capacitor buck converter", Proc. Of NORPIE 2004, 4th Nordic Workshop on Power and Industrial Electronics, Jun. 2004, Doc 7588. |
CN201480062695: CN Application filed May 16, 2016, 50 pages (30096-013CN1), Doc 7558. |
CN201480062695: Filing Receipt dated Jun. 1, 2016, 2 pages (30096-013CN1), Doc 7560. |
CN201480062695: First Office Action dated Nov. 28, 2017, 10 pages (30096-013CN1), Doc 7561. |
CN201480062695: Notice of Intention to Grant with Allowed Claims dated Aug. 29, 2019, 7 pages (30096-013CN1), Doc 7569. |
CN201480062695: Patent Certificate dated Dec. 10, 2019, 4 pages (30096-013CN1), Doc 7570. |
CN201480062695: Response to First Office Action filed Jun. 12, 2018 (No translation available), 10 pages (30096-013CN1), Doc 7563. |
CN201480062695: Response to Second Office Action filed Dec. 29, 2018, 15 pages (30096-013CN1), Doc 7565. |
CN201480062695: Response to Third Office Action filed May 8, 2019, 9 pages (30096-013CN1), Doc 7567. |
CN201480062695: Second Office Action dated Oct. 15, 2018, 17 pages (30096-013CN1), Doc 7564. |
CN201480062695: Third Office Action dated May 8, 2019, 7 pages (30096-013CN1), Doc 7566. |
CN201480062822: CN Patent Application filed May 16, 2016, 53 pages (30096-012CN1), Doc 7488. |
CN201480062822: First Office Action dated Jan. 18, 2017, 22 pages (30096-012CN1), Doc 7489. |
CN201480062822: Notice of Abandonment/Deemed Withdrawn dated Mar. 7, 2018, 1page (30096-012CN1), Doc 7492. |
CN201480062822: Response to First Office Action filed Aug. 2, 2017, 10 pages (30096-012CN1), Doc 7491. |
CN201480062822: Second Office Action dated Nov. 16, 2017, 10 pages (30096-012CN1), Doc 7490. |
CN201911107739: CN Application filed Nov. 13, 2019, 48 pages (30096-013CN2), Doc 7571. |
CN201911107739: First Office Action dated Dec. 30, 2020, 20 pages (30096-013CN2), Doc 7573. |
DE112014004225: DE Application filed Mar. 16, 2016, 53 pages (30096-012DE1), Doc 7494. |
DE112014004237: DE Application filed Mar. 16, 2016, 50 pages (30096-013DE1), Doc 7574. |
GB1604216: Examination Report Under Section 18(3) dated Jun. 22, 2020, 3 pages (30096-012GB1), Doc 7498. |
GB1604216: Filing Receipt dated Mar. 18, 2021, 1 page (30096-012GB1), Doc 7502. |
GB1604216: Further Examination Report Under Section 18(3) dated Feb. 1, 2021, 3 pages (30096-012GB1), Doc 7501. |
GB1604216: GB Application filed Mar. 11, 2016, 24 pages (30096-012GB1), Doc 7495. |
GB1604216: Intention to Grant dated Apr. 21, 2021, 2 pages (30096-012GB1), Doc 7613. |
GB1604216: Notice of Publication dated Apr. 25, 2016, 2 pages (30096-012GB1), Doc 7496. |
GB1604216: Response to Examination Report Under Section 18(3) and Amendment filed Dec. 21, 2020, 10 pages (30096-012GB1), Doc 7500. |
GB1604216: Response to Further Examination Report Under Section 18(3) filed Mar. 31, 2021, 12 pages (30096-012GB1), Doc 7503. |
GB1604221.0: Examination Report Under Section 18(3) dated Jun. 22, 2020, 2 pages (30096-013GB1), Doc 7578. |
GB1604221.0: Further Examination Report Under Section 18(3) dated Feb. 21, 2021, 1 page (30096-013GB1), Doc 7580. |
GB1604221.0: GB Application filed Mar. 11, 2016, 25 pages (30096-013GB1), Doc 7576. |
GB1604221.0: Intention to Grant dated Apr. 21, 2021, 2 pages (30096-013GB1), Doc 7614. |
GB1604221.0: Response to Examination Report Under Section 18(3) filed Dec. 21, 2020, 7 pages (30096-013GB1), Doc 7579. |
GB1604221.0: Response to Further Examination Report Under Section 18(3) filed Apr. 6, 2021, 14 pages (30096-013GB1), Doc 7586. |
GB2104046.4: GB Application filed Mar. 23, 2021, 26 pages (30096-012GB2), Doc 7504. |
Han—"A New Approach to Reducing Outpur Ripple in Switched-Capacitor-Based Step-Down DC-DC Converters" IEEE Transactions on Power Electronics, vol. 21, No. 6, pp. 1548-1555, Nov. 2006, Doc 7589. |
KR20167009266: KR Application filed Apr. 7, 2016, 69 pages (30096-012KR1), Doc 7507. |
KR20167009267: Filing Receipt dated Apr. 7, 2016, 3 pages (30096-013KR1), Doc 7583. |
KR20167009267: KR Patent Application filed Apr. 7, 2016, 68 pages (30096-013KR1), Doc 7582. |
Lei—"Analysis of Switched-Capacitor DC-DC Converters in Soft-Charging Operation" 14th IEEE Workshop on Control and Modeling for Power Electronics, p. 1-7, Jun. 23, 2013, Doc 7590. |
Meynard—"Multi-Level Conversion: High Voltage Choppers and Voltage-Source Inverters" IEEE Power Electronics Specialists Conference pp. 397-403, 1992, Doc 7591. |
Middlebrook—"Transformerless DC-to-DC Converters with Large Conversion Ratios" IEEE Transactions on Power Electronics, vol. 3, No. 4, pp. 484-488, Oct. 1988, Doc 7592. |
Ng—"Switched Capacitor DC-DC Converter: Superior where the Buck Converter has Dominated" PhD Thesis, UC Berkeley, Aug. 17, 2011, Doc 7593. |
PCT/US14/55796: Intl. Preliminary Report on Patentability dated Mar. 22, 2016, 7 pages (400-012WO1), Doc 7499. |
PCT/US14/55796: Intl. Search Report and Written Opinion dated Jan. 2, 2015, 15 pages (400-012WO1), Doc. |
PCT/US14/55796: PCT Application filed Sep. 16, 2014, 29 pages (400-012WO1), Doc 7485. |
PCT/US14/55809: Intl. Search Report and Written Opinion dated Mar. 31, 2015, 14 pages (30096-013WO1), Doc 7555. |
PCT/US14/55809: Intl.Preliminary Reporton Patentability dated Mar. 31, 2016, 7 pages (30096-013WO1), Doc 7556. |
PCT/US14/55809: PCT Application filed Sep. 16, 2014, 38 pages (30096-013WO1), Doc 7554. |
Pilawa-Podgurski—"Merged Two-Stage Power Converter Architecture with Soft Charging Switched-Capacitor Energy Transfer" 39th IEEE Power Electronics Specialists Conference, 2008, Doc 7594. |
Pilawa-Podgurski—"Merged Two-Stage Power Converter with Soft Charging Switched-Capacitor Stage in 180 nm CMOS" IEEE Journal of Solid-State Circuits, vol. 47, No. 7, pp. 1557-1567, Jul. 2012, Doc 7595. |
Sun—"High Power Density, High Efficiency System Two-Stage Power Architecture for Laptop Computers" Power Electronic Specialists Conference, pp. 1-7, Jun. 2006, Doc 7596. |
TW103131753: TW Patent Application filed Sep. 15, 2014, 56 pages (30096-013TW1), Doc 7584. |
TW103131755: TW Application filed Sep. 15, 2014, 26 pages (30096-012TW1), Doc 7509. |
U.S. Appl. No. 14/027,584, filed Oct. 10, 2013, 3 pages (30096-012001), Doc 7427. |
U.S. Appl. No. 14/027,584, filed Sep. 16, 2013, 43 pages (30096-012001), Doc 7413. |
U.S. Appl. No. 14/027,584: Advisory Action dated Aug. 29, 2014, 4 pages (30096-012001), Doc 7442. |
U.S. Appl. No. 14/027,584: Advisory Action dated Sep. 11, 2015, 5 pages (30096-012001), Doc 7451. |
U.S. Appl. No. 14/027,584: Advisory Action, Applicant Initialed Interview Summary, and 312 Amendment Initialed dated Dec. 10, 2015, 9 pages (30096-012001), Doc 7456. |
U.S. Appl. No. 14/027,584: Amendment and Response to Notice of Non-Compliant Amendment filed Jul. 6, 2016, 12 pages (30096-012001), Doc 7461. |
U.S. Appl. No. 14/027,584: Applicant Initialed Interview Summary dated Sep. 2, 2015, 3 pages (30096-012001), Doc 7449. |
U.S. Appl. No. 14/027,584: Applicant Initialed Interview Summary, 312 Amendment, and Decision on After Final Consideration Decision dated Sep. 11, 2015, 4 pages (30096-012001), Doc 7450. |
U.S. Appl. No. 14/027,584: Final Office Action dated Aug. 27, 2015, 12 pages (30096-012001), Doc 7448. |
U.S. Appl. No. 14/027,584: Final Office Action dated Feb. 7, 2017, 8 pages (30096-012001), Doc 7464. |
U.S. Appl. No. 14/027,584: Final Office Action dated Jul. 2, 2015, 12 pages (30096-012001), Doc 7447. |
U.S. Appl. No. 14/027,584: Final Office Action dated Jul. 28, 2014, 10 pages (30096-012001), Doc 7440. |
U.S. Appl. No. 14/027,584: Final Office Action dated Nov. 12, 2015, 14 pages (30096-012001), Doc 7454. |
U.S. Appl. No. 14/027,584: Issue Fee Payment filed Jul. 14, 2017, 6 pages (30096-012001), Doc 7467. |
U.S. Appl. No. 14/027,584: Issue Notification dated Aug. 2, 2017, 6 pages (30096-012001), Doc 7468. |
U.S. Appl. No. 14/027,584: Non-final Office Action dated Apr. 17, 2014, 9 pages (30096-012001), Doc 7438. |
U.S. Appl. No. 14/027,584: Non-final Office Action dated Mar. 12, 2015, 10 pages (30096-012001), Doc 7444. |
U.S. Appl. No. 14/027,584: Non-final Office Action dated Sep. 28, 2016, 13 pages (30096-012001), Doc 7462. |
U.S. Appl. No. 14/027,584: Notice of Allowance and Allowability dated Apr. 17, 2017, 16 pages (30096-012001), Doc 7466. |
U.S. Appl. No. 14/027,584: Notice of Appeal and Pre-Brief Conference Request filed Feb. 11, 2016, 9 pages (30096-012001), Doc 7457. |
U.S. Appl. No. 14/027,584: Notice of Appeal and Pre-Brief Conference Request filed Oct. 2, 2015, 11 pages (30096-012001), Doc 7452. |
U.S. Appl. No. 14/027,584: Notice of Non-Compliant Amendment dated Jun. 17, 2016, 2 pages (30096-012001), Doc 7460. |
U.S. Appl. No. 14/027,584: Notice of Publication dated Mar. 19, 2015, 1 page (30096-012001), Doc 7445. |
U.S. Appl. No. 14/027,584: Pre-Brief Conference Decision dated May 9, 2016, 2 pages (30096-012001), Doc 7458. |
U.S. Appl. No. 14/027,584: RCE and Amendment filed Jun. 9, 2016, 16 pages (30096-012001), Doc 7459. |
U.S. Appl. No. 14/027,584: RCE and Amendment filed Oct. 24, 2014, 19 pages (30096-012001), Doc 7443. |
U.S. Appl. No. 14/027,584: Replacement Drawing filed Oct. 5, 2015, 11 pages (30096-012001), Doc 7453. |
U.S. Appl. No. 14/027,584: Response to Final Office Action dated Apr. 7, 2017, 11 pages (30096-012001), Doc 7465. |
U.S. Appl. No. 14/027,584: Response to Final Office Action dated Nov. 30, 2015, 13 pages (30096-012001), Doc 7455. |
U.S. Appl. No. 14/027,584: Response to Final Office Action filed Aug. 19, 2014, 10 pages (30096-012001), Doc 7441. |
U.S. Appl. No. 14/027,584: Response to Non-final Office Action dated Jun. 12, 2015, 30 pages (30096-012001), Doc 7446. |
U.S. Appl. No. 14/027,584: Response to Non-final Office Action filed Dec. 28, 2016, 13 pages (30096-012001), Doc 7463. |
U.S. Appl. No. 14/027,584: Response to Non-final Office Action filed Jun. 24, 2014, 45 pages (30096-012001), Doc 7439. |
U.S. Appl. No. 14/027,584: Response to Restriction Requirement filed Mar. 17, 2014, 6 pages (30096-012001), Doc 7437. |
U.S. Appl. No. 14/027,584: Restriction Requirement dated Jan. 17, 2014, 6 pages (30096-012001), Doc 7436. |
U.S. Appl. No. 14/027,716: Advisory Action filed Oct. 30, 2014, 4 pages (30096-013001), Doc 7519. |
U.S. Appl. No. 14/027,716: Filing Receipt dated Oct. 11, 2013, 3 pages (30096-013001), Doc 7511. |
U.S. Appl. No. 14/027,716: Final Office Action filed Sep. 3, 2014, 9 pages (30096-013001), Doc 7516. |
U.S. Appl. No. 14/027,716: Issue Notification dated May 6, 2015, 1 page (30096-013001), Doc 7524. |
U.S. Appl. No. 14/027,716: Letter Restarting Period for Response dated Sep. 24, 2014, 9 pages (30096-013001), Doc 7517. |
U.S. Appl. No. 14/027,716: Non-final Office Action dated Apr. 22, 2014, 10 pages (30096-013001), Doc 7514. |
U.S. Appl. No. 14/027,716: Notice of Allowance and Allowability dated Jan. 23, 2015, 19 pages (30096-013001), Doc 7521. |
U.S. Appl. No. 14/027,716: Notice of Publication dated Mar. 19, 2015, 1 page (30096-013001), Doc 7522. |
U.S. Appl. No. 14/027,716: Patent Application filed Sep. 16, 2013, 35 pages (30096-013001), Doc 7510. |
U.S. Appl. No. 14/027,716: Response After Final filed Dec. 23, 2014, 9 pages (30096-013001), Doc 7520. |
U.S. Appl. No. 14/027,716: Response to Final Office Action filed Oct. 17, 2014, 15 pages (30096-013001), Doc 7518. |
U.S. Appl. No. 14/027,716: Response to Non-final Office Action filed Jul. 16, 2014, 15 pages (30096-013001), Doc 7515. |
U.S. Appl. No. 14/027,716: Response to Restriction Requirement dated Jan. 16, 2014, 3 pages (30096-013001), Doc 7513. |
U.S. Appl. No. 14/027,716: Restriction Requirement dated Jan. 16, 2014, 6 pages (30096-013001), Doc 7512. |
U.S. Appl. No. 14/027,716:Issue Fee Payment filed Apr. 22, 2015, 2 pages (30096-013001), Doc 7523. |
U.S. Appl. No. 14/719,815: Amendment and Issue Fee Payment filed Mar. 16, 2017, 15 pages (30096-013002), Doc 7534. |
U.S. Appl. No. 14/719,815: Amendment and Response to Notice to File Corrected Application Papers filed Jul. 29, 2015, 35 pages (30096-013002), Doc 7527. |
U.S. Appl. No. 14/719,815: Examiner Response to 312 Communication and Amendment dated Apr. 3, 2017, 4 pages (30096-013002), Doc 7535. |
U.S. Appl. No. 14/719,815: Examiner's Amendment dated Apr. 27, 2017, 1 page (30096-013002), Doc 7536. |
U.S. Appl. No. 14/719,815: Filing Receipt and Notice to File Corrected Application Papers dated Jun. 3, 2015, 5 pages (30096-013002), Doc 7526. |
U.S. Appl. No. 14/719,815: Issue Notification dated May 3, 2017, 1 page (30096-013002), Doc 7537. |
U.S. Appl. No. 14/719,815: Non-final Office Action dated Aug. 23, 2016, 12 pages (30096-013002), Doc 7531. |
U.S. Appl. No. 14/719,815: Notice of Allowance and Allowability dated Dec. 16, 2016, 20 pages (30096-013002), Doc 7533. |
U.S. Appl. No. 14/719,815: Notice of Publication dated Nov. 12, 2015, 3 pages (30096-013002), Doc 7529. |
U.S. Appl. No. 14/719,815: Patent Application filed May 22, 2015, 41 pages (30096-013002), Doc 7525. |
U.S. Appl. No. 14/719,815: Preliminary Amendment filed Apr. 12, 2016, 9 pages (30096-013002), Doc 7530. |
U.S. Appl. No. 14/719,815: Response to Non-final Office Action filed Nov. 22, 2016, 10 pages (30096-013002), Doc 7532. |
U.S. Appl. No. 14/719,815: Updated Filing Receipt dated Aug. 5, 2015, 3 pages (30096-013002), Doc 7528. |
U.S. Appl. No. 15/460,596: Amendment, Terminal Disclaimer and Response to Final Office Action dated Sep. 19, 2018, 9 pages (30096-013003), Doc 7547. |
U.S. Appl. No. 15/460,596: Corrected Filing Receipt dated Nov. 9, 2018, 3 pages (30096-013003), Doc 7549. |
U.S. Appl. No. 15/460,596: Corrected Filing Receipt dated Oct. 6, 2017, 3 pages (30096-013003), Doc 7543. |
U.S. Appl. No. 15/460,596: Filing Receipt and Notice to File Missing Parts dated Mar. 24, 2017, 5 pages (30096-013003), Doc 7539. |
U.S. Appl. No. 15/460,596: Final Office Action dated Aug. 15, 2018, 7 pages (30096-013003), Doc 7546. |
U.S. Appl. No. 15/460,596: Issue Fee Payment filed Nov. 16, 2018, 4 pages (30096-013003), Doc 7550. |
U.S. Appl. No. 15/460,596: Issue Notification dated Dec. 5, 2018, 1 page (30096-013003), Doc 7551. |
U.S. Appl. No. 15/460,596: Non-final Office Action dated Jun. 25, 2018, 15 pages (30096-013003), Doc 7544. |
U.S. Appl. No. 15/460,596: Notice of Allowance and Allowability dated Oct. 5, 2018, 13 pages (30096-013003), Doc 7548. |
U.S. Appl. No. 15/460,596: Notice of Publication dated Oct. 5, 2017, 1 page (30096-013003), Doc 7542. |
U.S. Appl. No. 15/460,596: Patent Application filed Mar. 16, 2017, pages (30096-013003), Doc 7538. |
U.S. Appl. No. 15/460,596: Preliminary Amendment and Response to Notice to File Missing Parts dated Jun. 26, 2017, 11 pages (30096-013003), Doc 7540. |
U.S. Appl. No. 15/460,596: Response to Non-final Office Action dated Jul. 5, 2018, 28 pages (30096-013003), Doc 7545. |
U.S. Appl. No. 15/460,596: Updated Filing Receipt dated Jun. 28, 2017, 3 pages (30096-013003), Doc 7541. |
U.S. Appl. No. 15/650,101: Advisory Action dated Jan. 28, 2019, 4 pages (30096-012002), Doc 7483. |
U.S. Appl. No. 15/650,101: Corrected Filing Receipt dated Jan. 9, 2019, 3 pages (30096-012002), Doc 7482. |
U.S. Appl. No. 15/650,101: Filing Receipt and Notice to Fie Missing Parts dated Jul. 24, 2017, 6 pages (30096-012002), Doc 7470. |
U.S. Appl. No. 15/650,101: Final Office Action dated Nov. 5, 2018, 16 pages (30096-012002), Doc 7480. |
U.S. Appl. No. 15/650,101: Non-final Office Action dated Jul. 19, 2018, 12 pages (30096-012002), Doc 7477. |
U.S. Appl. No. 15/650,101: Notice of Abandonment dated Oct. 8, 2019, 2 pages (30096-012002), Doc 7484. |
U.S. Appl. No. 15/650,101: Notice of Publication dated Jan. 4, 2018, 1 page (30096-012002), Doc 7475. |
U.S. Appl. No. 15/650,101: Patent Application filed Jul. 14, 2017, 29 pages (30096-012002), Doc 7469. |
U.S. Appl. No. 15/650,101: Preliminary Amendment and Response to Notice to Fie Missing Parts filed Sep. 25, 2017, 12 pages (30096-012002), Doc 7471. |
U.S. Appl. No. 15/650,101: Replacement Filing Receipt dated Oct. 5, 2017, 3 pages (30096-012002), Doc 7474. |
U.S. Appl. No. 15/650,101: Request to Change Name of Applicant filed Feb. 27, 2018, 10 pages (30096-012002), Doc 7476. |
U.S. Appl. No. 15/650,101: Request to Update Name of Applicant filed Oct. 3, 2017, 18 pages (30096-012002), Doc 7473. |
U.S. Appl. No. 15/650,101: Response to Final Office Action filed Jan. 7, 2019, 40 pages (30096-012002), Doc 7481. |
U.S. Appl. No. 15/650,101: Response to Non-final Office Action, Terminal Disclaimer and Request to Change Applicant filed Oct. 19, 2018, 47 pages (30096-012002), Doc 7478. |
U.S. Appl. No. 15/650,101: Supplemental Amendment filed Oct. 26, 2018, 47 pages (30096-012002), Doc 7479. |
U.S. Appl. No. 15/650,101: Updated Filing Receipt dated Sep. 27, 2017, 4 pages (30096-012002), Doc 7472. |
U.S. Appl. No. 17/133,909: Filing Receipt dated Dec. 29, 2020, 4 pages (30096-013004), Doc 7553. |
U.S. Appl. No. 17/133,909: Patent Application filed Dec. 24, 2020, 44 pages (30096-013004), Doc 7552. |
Umeno—"A New Approach to Low Ripple-Noise Switching Converters on the Basis of Switched-Capacitor Converters" IEEE Intl. Symposium on Circuits and Systems, vol. 2, pp. 1077-1080, Jun. 1991, Doc 7597. |
Wood—"Design, Fabrication and Initial Results of a 2g Autonomous Glider" IEEE Industrial Electronics Society, pp. 1870-1877, Nov. 2005, Doc 7598. |
Also Published As
Publication number | Publication date |
---|---|
GB2592816B (en) | 2021-12-29 |
CN105723599B (en) | 2019-12-10 |
GB202107059D0 (en) | 2021-06-30 |
US20170285679A1 (en) | 2017-10-05 |
WO2015039079A2 (en) | 2015-03-19 |
GB2592816A (en) | 2021-09-08 |
US10162376B2 (en) | 2018-12-25 |
GB201604221D0 (en) | 2016-04-27 |
CN110784103B (en) | 2022-07-12 |
DE112014004237T5 (en) | 2016-06-09 |
TW201526493A (en) | 2015-07-01 |
WO2015039079A3 (en) | 2015-05-21 |
US20150326113A1 (en) | 2015-11-12 |
KR20160056913A (en) | 2016-05-20 |
GB2534716A (en) | 2016-08-03 |
US20150077176A1 (en) | 2015-03-19 |
CN110784103A (en) | 2020-02-11 |
CN105723599A (en) | 2016-06-29 |
US9658635B2 (en) | 2017-05-23 |
GB2534716B (en) | 2021-07-07 |
US9041459B2 (en) | 2015-05-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
USRE49449E1 (en) | Charge pump with temporally-varying adiabaticity | |
US9742266B2 (en) | Charge pump timing control | |
US10218256B2 (en) | Primary side control of primary resonant flyback converters | |
US7679218B1 (en) | Load compensated switching regulator | |
JP5435765B2 (en) | Method and apparatus for integrated cable-caused voltage drop compensation in power converters | |
US6215288B1 (en) | Ultra-low power switching regulator method and apparatus | |
US20130027014A1 (en) | Power supply controller with an input voltage compensation circuit | |
EP1708345A2 (en) | Voltage regulator | |
TW201250424A (en) | Method and apparatus for low standby current switching regulator | |
US10978944B2 (en) | Multi-switch voltage regulator | |
US20200252060A1 (en) | Low resistive load switch with ouput current control | |
CN101677206A (en) | Method and apparatus to reduce line current harmonics from a power supply | |
WO2015077180A1 (en) | Switching regulator current mode feedback circuits | |
US7508174B2 (en) | Anti-ringing switching regulator and control method therefor | |
US7432687B2 (en) | High efficiency switching power supply | |
JP2003504997A (en) | Control of DC / DC power converter with synchronous rectifier | |
US9647546B2 (en) | Dual-mode voltage doubling buck converter with smooth mode transition | |
US20110149619A1 (en) | Method and apparatus for varying current limit to limit an output power of a power supply | |
CN107769524A (en) | power supply circuit and switching power supply | |
RU2806896C1 (en) | Boost voltage regulator for work with three-phase loads | |
KR20150022579A (en) | Power supply device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FEPP | Fee payment procedure |
Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
AS | Assignment |
Owner name: PEREGRINE SEMICONDUCTOR CORPORATION, CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ARCTIC SAND TECHNOLOGIES, INC.;REEL/FRAME:055868/0197 Effective date: 20170814 Owner name: PSEMI CORPORATION, CALIFORNIA Free format text: CHANGE OF NAME;ASSIGNOR:PEREGRINE SEMICONDUCTOR CORPORATION;REEL/FRAME:055875/0720 Effective date: 20171227 Owner name: ARCTIC SAND TECHNOLOGIES, INC., MASSACHUSETTS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SZCZESZYNSKI, GREGORY;BLYDE, OSCAR;SIGNING DATES FROM 20130912 TO 20130913;REEL/FRAME:055867/0945 Owner name: PSEMI CORPORATION, CALIFORNIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GIULIANO, DAVID M.;REEL/FRAME:055868/0676 Effective date: 20201223 |
|
AS | Assignment |
Owner name: PEREGRINE SEMICONDUCTOR CORPORATION, CALIFORNIA Free format text: CORRECTIVE ASSIGNMENT TO CORRECT THE ASSIGNEE ADDRESS PREVIOUSLY RECORDED ON REEL 055868 FRAME 0197. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT;ASSIGNOR:ARCTIC SAND TECHNOLOGIES, INC.;REEL/FRAME:065086/0597 Effective date: 20170814 |