TW201537876A - Power converter with dynamic voltage scaling - Google Patents
Power converter with dynamic voltage scaling Download PDFInfo
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- TW201537876A TW201537876A TW103142164A TW103142164A TW201537876A TW 201537876 A TW201537876 A TW 201537876A TW 103142164 A TW103142164 A TW 103142164A TW 103142164 A TW103142164 A TW 103142164A TW 201537876 A TW201537876 A TW 201537876A
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- 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
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/157—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators with digital control
-
- 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
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0016—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters
- H02M1/0022—Control circuits providing compensation of output voltage deviations using feedforward of disturbance parameters the disturbance parameters being input voltage fluctuations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
Description
本發明與一種具有動態電壓定標（DVS）的功率轉換器有關。本發明具體地與一種具有動態電壓定標的標準直流對直流（DC對DC）功率轉換器有關。The invention relates to a power converter with dynamic voltage scaling (DVS). The invention relates in particular to a standard DC-to-DC (DC to DC) power converter with dynamic voltage scaling.
切換的DC對DC功率轉換已廣泛用於供應功率負載點，例如裝置。一般而言，供電裝置（例如，微處理器、FPGA或其他數位電路）可於特定電壓範圍下運作。數位電路的供應電壓越高，元件的性能就越好。然而，若供電裝置是在比其性能所需更高電壓下運作，便浪費了能量。Switched DC-to-DC power conversion has been widely used to supply power load points, such as devices. In general, powering devices (eg, microprocessors, FPGAs, or other digital circuits) can operate at a particular voltage range. The higher the supply voltage of the digital circuit, the better the performance of the component. However, if the power supply is operated at a higher voltage than is required for its performance, energy is wasted.
此外，在許多應用中，供電裝置大部分時間都在所謂的輕度負載或中等負載條件下運作。在這些條件下，裝置不需要以最高可能供應電壓運作。然而，若供電裝置是在輕度或中等負載條件下以最高可能供應電壓下運作，供電裝置的能量消耗則高於所需。作為替代，可降低供應電壓，因此也可降低能量消耗。Furthermore, in many applications, the power supply unit operates most of the time under so-called light or medium load conditions. Under these conditions, the device does not need to operate at the highest possible supply voltage. However, if the power supply is operated at the highest possible supply voltage under mild or medium load conditions, the power consumption of the power supply is higher than desired. As an alternative, the supply voltage can be reduced and therefore the energy consumption can also be reduced.
因此，需要一種被配置以最佳化供電裝置的能量消耗達之功率轉換器。Therefore, there is a need for a power converter that is configured to optimize the energy consumption of the power supply.
本發明與根據供電裝置所需性能產生已調整供應電壓的功率轉換器有關。供電裝置傳遞其所需供應電壓（即參考供應電壓）至功率轉換器。利用傳遞至功率轉換器的所需供應電壓以及功率轉換器產生的已調整供應電壓可最佳化能量消耗。The present invention relates to a power converter that produces an adjusted supply voltage based on the desired performance of the power supply. The power supply device delivers its required supply voltage (ie, reference supply voltage) to the power converter. The energy consumption can be optimized using the required supply voltage delivered to the power converter and the adjusted supply voltage produced by the power converter.
第1圖顯示功率轉換器11以及傳遞所需供應電壓至功率轉換器11的供電裝置12。功率轉換器11包括可切換功率級15，用於產生輸出電壓以為供電裝置12的電源域供電，其中可切換功率級15是由驅動器16驅動，該驅動器16是由根據參考供應電壓產生可切換訊號以驅動可切換功率級15的控制器17控制。功率轉換器可以是如第1圖所示的降壓轉換器。因此，可切換功率轉換級15包括高側開關18、低側開關19、電感器110與電容器111。功率轉換器11的控制器17的類比數位轉換器（ADC）112被使用作為傳遞介面。假設供電裝置無法輸出類比電壓，脈衝寬度調變（PWM）產生器13產生的PWM訊號可被用以利用低通濾波器14產生類比值。The first diagram shows the power converter 11 and the power supply unit 12 that delivers the required supply voltage to the power converter 11. The power converter 11 includes a switchable power stage 15 for generating an output voltage for powering a power domain of the power supply device 12, wherein the switchable power stage 15 is driven by a driver 16 that generates a switchable signal from a reference supply voltage Controlled by a controller 17 that drives the switchable power stage 15. The power converter can be a buck converter as shown in Figure 1. Thus, the switchable power conversion stage 15 includes a high side switch 18, a low side switch 19, an inductor 110, and a capacitor 111. An analog digital converter (ADC) 112 of the controller 17 of the power converter 11 is used as a transfer interface. Assuming that the power supply device is unable to output the analog voltage, the PWM signal generated by the pulse width modulation (PWM) generator 13 can be used to generate an analog value using the low pass filter 14.
此低通濾波訊號Vin接著由控制器17的ADC 112讀取並被映射至控制器17的參考供應電壓Vsup。This low pass filtered signal Vin is then read by the ADC 112 of the controller 17 and mapped to the reference supply voltage Vsup of the controller 17.
具體而言，ADC輸入電壓Vin可根據這個方程式被轉譯為該參考供應電壓Vsup：其中Vmin為最小參考供應電壓，Vmax為最大供應電壓，且Vin, max為最大ADC輸入電壓。Specifically, the ADC input voltage Vin can be translated into the reference supply voltage Vsup according to this equation: Where Vmin is the minimum reference supply voltage, Vmax is the maximum supply voltage, and Vin, max is the maximum ADC input voltage.
此方程式於第4圖中說明。This equation is illustrated in Figure 4.
Vmax、Vmin與Vin, max以及最小ADC輸入電壓Vin, min可被儲存於DC對DC控制器記憶體中。Vmax, Vmin and Vin, max and the minimum ADC input voltage Vin, min can be stored in the DC to DC controller memory.
可處理供電裝置的輸入輸出電壓V_IO以及最大ADC電壓VADCmax之間的可能誤匹配。A possible mismatch between the input and output voltages V_IO of the power supply device and the maximum ADC voltage VADCmax can be handled.
在供電裝置的IO電壓（V_IO）低於最大ADC電壓（VADCmax）的情況中，供電裝置將具有從0%到100%的PWM值，且Vinmax等於供電裝置的IO電壓。對於PWM為0%，ADC的輸入電壓為0，且對於PWM值為100%，Vin＝V_IO＝Vinmax。In the case where the IO voltage (V_IO) of the power supply device is lower than the maximum ADC voltage (VADCmax), the power supply device will have a PWM value from 0% to 100%, and Vinmax is equal to the IO voltage of the power supply device. For a PWM of 0%, the input voltage of the ADC is 0, and for a PWM value of 100%, Vin = V_IO = Vinmax.
在供電裝置的IO電壓高於VADCmax的情況中，PWM必須被限制為VADCmax / V_IO*100%，以避免超過ADC的電壓限制。In the case where the IO voltage of the power supply unit is higher than VADCmax, the PWM must be limited to VADCmax / V_IO*100% to avoid exceeding the voltage limit of the ADC.
V_IO、PWM與Vinmax之間的關係於第2圖中顯示。這些是Vinmax與PWM之最大可能或允許的數值。可選取在第2圖的圖表左側直線下方以及在右側雙曲線下方的任何數值作為PWM與Vinmax的最大值。第3圖說明PWM與Vinmax之選擇程序。The relationship between V_IO, PWM and Vinmax is shown in Figure 2. These are the maximum possible or allowable values for Vinmax and PWM. You can select any value below the straight line on the left side of the graph in Figure 2 and below the hyperbola on the right as the maximum value of PWM and Vinmax. Figure 3 illustrates the selection procedure for PWM and Vinmax.
根據使用者應用51的需求，PWM產生器53可容易被編程至任何數位裝置中，如第5圖所示。這可於軟體或硬體中完成。也可基於預先定義、然後於數位裝置中實體化為網表的模組52、或是基於像是Verilog或VHDL之類的HDL（硬體描述語言）的模組。這樣，PWM產生器53可被整合於任何裝置中，例如可編程邏輯閘陣列晶片（FPGA）、專用積體電路（ASIC）、微控制器（uC）或微處理器（uP）。Depending on the needs of the user application 51, the PWM generator 53 can be easily programmed into any digital device, as shown in FIG. This can be done in software or in hardware. It may also be based on a module 52 that is predefined and then embodied as a netlist in a digital device, or a module based on HDL (Hardware Description Language) such as Verilog or VHDL. Thus, the PWM generator 53 can be integrated into any device, such as a programmable logic gate array (FPGA), a dedicated integrated circuit (ASIC), a microcontroller (uC), or a microprocessor (uP).
HDL碼或網表52可獨立於供電裝置的應用而開發。只有與PWM產生器53的介面需要被指定。PWM產生器53之輸入為串列或並列介面，其定義了所需之PWM工作週期與時脈。PWM產生器的輸出是驅動PWM訊號的一個外部接腳。可利用HDL層級上的軟性IP來達到最高的彈性。此方式，可在使用者應用的設計週期中指定PWM工作週期的解析度所需之位元數。也可能使用基於製程特定佈局的硬性IP，在此情況中，將失去PWM工作週期解析度之彈性。並不強制使用以IP為主的方式。也可將PWM功能性編程於軟體（SW）中或狀態機器中、或與供電裝置合併的任何其他硬體（HW）一起編程。The HDL code or netlist 52 can be developed independently of the application of the power supply. Only the interface with the PWM generator 53 needs to be specified. The input to PWM generator 53 is a serial or parallel interface that defines the desired PWM duty cycle and clock. The output of the PWM generator is an external pin that drives the PWM signal. Soft IP on the HDL level can be utilized to achieve maximum flexibility. In this way, the number of bits required for the resolution of the PWM duty cycle can be specified in the design cycle of the user application. It is also possible to use a hard IP based on a process-specific layout, in which case the flexibility of the PWM duty cycle resolution will be lost. It is not mandatory to use an IP-based approach. The PWM functionality can also be programmed in software (SW) or in a state machine, or programmed with any other hardware (HW) that is integrated with the power supply.
在PWM解析度為1位元的情況下，可省略低通濾波器，因為PWM輸出將為邏輯低或邏輯高，亦即，其為DC值。對於V_IO ＞ VADCmax，需要電阻分壓器來取代低通，以將ADC輸入電壓限制為VADCmax。對於V_IO ＜ VADCmaz，Vinmax需要被設定為V_IO。在第6圖中，顯示了具有如第1圖所示類似參考符號的修飾方塊圖。低通濾波器已經被替換為電阻分壓器64。在此應用中，Vsup可僅具有兩個數值，這在某些應用中已足夠。In the case where the PWM resolution is 1 bit, the low pass filter can be omitted because the PWM output will be either logic low or logic high, ie, it is a DC value. For V_IO > VADCmax, a resistor divider is required to replace the low pass to limit the ADC input voltage to VADCmax. For V_IO < VADCmaz, Vinmax needs to be set to V_IO. In Fig. 6, a modified block diagram having like reference numerals as shown in Fig. 1 is shown. The low pass filter has been replaced with a resistor divider 64. In this application, Vsup can have only two values, which is sufficient in some applications.
為了克服第1圖的系統中允許的最大PWM的限制，可設置如第6圖與第7圖中所示的另一電阻R2。第6圖與第7圖中的電阻分壓器R1/R2將ADC的輸入電壓限制為VADCmax。因此，必須確保對於為100%的PWM輸出，R2/(R1+R2)＜=VADCmax/V_IO。為使用ADC的完整輸入範圍，R2/(R1+R2)必須為VADCmax/V_IO。In order to overcome the limitation of the maximum PWM allowed in the system of Fig. 1, another resistor R2 as shown in Figs. 6 and 7 can be set. The resistor divider R1/R2 in Figures 6 and 7 limits the input voltage of the ADC to VADCmax. Therefore, it must be ensured that for a 100% PWM output, R2/(R1+R2)<=VADCmax/V_IO. To use the full input range of the ADC, R2/(R1+R2) must be VADCmax/V_IO.
可使用顯示了具有第1圖所示類似參考符號之方塊圖的第7圖、第8圖與第9圖來說明DVS實施方式之彈性解決方法。濾波器74包括低通濾波器與電阻分壓器。The elastic solution of the DVS embodiment can be explained using Figs. 7, 8 and 9 showing a block diagram having similar reference numerals as shown in Fig. 1. Filter 74 includes a low pass filter and a resistor divider.
控制器77將於其記憶體（揮發性或非揮發性）中保留Vinmin、Vinmax、Vmin與Vmax之數值，並將根據第8圖中所示的方程式來調整Vsup：Vmax-Vmin為參考供應電壓的動態範圍，而Vin,max-Vin,min為ADC輸入電壓的動態範圍。The controller 77 will retain the values of Vinmin, Vinmax, Vmin and Vmax in its memory (volatile or non-volatile) and will adjust Vsup according to the equation shown in Figure 8: Vmax-Vmin is the dynamic range of the reference supply voltage, while Vin, max-Vin, min is the dynamic range of the ADC input voltage.
因此，PWM訊號的工作比被限制，使得在最大值處，PWM訊號的100%工作比對應於ADC能讀取的最大ADC輸入電壓，且其中ADC輸入電壓映射至參考供應電壓，使得ADC輸入電壓之動態範圍對應於參考供應電壓之動態範圍。Therefore, the duty ratio of the PWM signal is limited such that at the maximum value, the 100% duty ratio of the PWM signal corresponds to the maximum ADC input voltage that the ADC can read, and wherein the ADC input voltage is mapped to the reference supply voltage, so that the ADC input voltage The dynamic range corresponds to the dynamic range of the reference supply voltage.
PWM產生器73將產生介於PWMmin與PWMmax之間的PWM輸出，其具有n位元之線性解析度。此外，Vin的操作範圍可經由R1與R2而受影響，且低通濾波器以Clp與R1和R2一起形成，以從PWM訊號產生DC值。The PWM generator 73 will produce a PWM output between PWMmin and PWMmax with a linear resolution of n bits. In addition, the operating range of Vin can be affected by R1 and R2, and the low pass filter is formed with Clp and R1 and R2 to generate a DC value from the PWM signal.
第9圖說明用於編程PWM產生器93的另一方塊圖。PWM產生器為HDL模組，其具有時脈與PWMdig訊號作為輸入，且以PWMmax和PWMmin作為參數。此IP也可根據使用者應用91而設置為佈局或網表IP 92。在此例中，損失了可指定PWMdig寬度以及參數PWMmin和PWMmax的彈性。PWM產生器是供應裝置的一部分。FIG. 9 illustrates another block diagram for programming the PWM generator 93. The PWM generator is an HDL module with clock and PWMdig signals as inputs and PWMmax and PWMmin as parameters. This IP can also be set to the layout or netlist IP 92 according to the user application 91. In this case, the flexibility that can specify the PWMdig width and the parameters PWMmin and PWMmax is lost. The PWM generator is part of the supply device.
以下說明在系統內部之標準DC對DC控制器中的DVS實施方式之特徵概要。
第10圖說明了在供電裝置與在DC對DC控制器中的流程。Figure 10 illustrates the flow in the power supply unit and in the DC to DC controller.
上述所有配置都是在開放迴路中運作。傳遞是指從供電裝置到DC對DC控制器的一種方式傳遞，這表示在系統設計期間必須計算出從送出DVS訊號（PWM變化）到輸出電壓達到其所需值的時間之最大時間，且必須實施等待時段以等待輸出電壓變化的完成。這對於從高性能模式（即高輸出電壓到低輸出電壓）進行的情況並不重要。但是當要從低功率模式進行到高功率模式時，這會是重要的，因為供電裝置需要等待計算出的最大時間以進行至高性能（亦即高功率）模式。All of the above configurations operate in an open loop. Transfer is a way of transferring from the power supply to the DC to the DC controller, which means that the maximum time from the sending of the DVS signal (PWM change) to the output voltage to its desired value must be calculated during system design and must A wait period is implemented to wait for the completion of the output voltage change. This is not important for situations that are performed from high performance mode (ie high output voltage to low output voltage). However, this is important when going from low power mode to high power mode because the power supply needs to wait for the calculated maximum time to proceed to a high performance (ie, high power) mode.
11、61、71‧‧‧功率轉換器
12、62、72‧‧‧供電裝置
13、53、63、73、93‧‧‧脈衝寬度調變（PWM）產生器
14、64、74‧‧‧低通濾波器
15、65、75‧‧‧可切換功率級
16、66、76‧‧‧驅動器
17、67、77‧‧‧控制器
18、68、78‧‧‧高側開關
19、69、79‧‧‧低側開關
51‧‧‧使用者應用裝置
52‧‧‧模組
53‧‧‧PWM產生器
61‧‧‧功率轉換器
62‧‧‧供電裝置
63‧‧‧脈衝寬度調變（PWM）產生器
64‧‧‧低通濾波器
65‧‧‧可切換功率級
91‧‧‧使用者應用
92‧‧‧網表IP
93‧‧‧PWM產生器
110、610、710‧‧‧電感器
111、611、711‧‧‧電容器
112、612、712‧‧‧類比數位轉換器（ADC）11, 61, 71‧‧‧ power converters
12, 62, 72‧‧‧ power supply units
13, 53, 63, 73, 93‧‧‧ Pulse Width Modulation (PWM) Generator
14, 64, 74‧‧‧ low pass filter
15, 65, 75‧‧‧ switchable power levels
16, 66, 76‧‧‧ drive
17, 67, 77‧‧ ‧ controller
18, 68, 78‧‧‧ high side switch
19, 69, 79‧‧‧ low side switch
51‧‧‧User application device
52‧‧‧ modules
53‧‧‧PWM generator
61‧‧‧Power Converter
62‧‧‧Power supply unit
63‧‧‧Pulse Width Modulation (PWM) Generator
64‧‧‧Low-pass filter
65‧‧‧Switchable power stage
91‧‧‧User application
92‧‧‧Netlist IP
93‧‧‧PWM generator
110, 610, 710‧‧‧ inductors
111, 611, 711‧‧ ‧ capacitor
112, 612, 712‧‧‧ analog digital converters (ADCs)
將參考所附圖式，其中： 第1圖顯示功率轉換器與供電裝置的方塊圖，供電裝置使用低通濾波器傳遞其所需供應電壓至功率轉換器； 第2圖顯示供電裝置的輸入輸出電壓（V_IO）、用以傳遞所需供應電壓的脈衝寬度調變（PWM）訊號的工作比、以及類比數位（ADC）轉換器輸入電壓Vin之間的關係； 第3圖顯示PWM訊號的工作比與最大ADC輸入電壓之選擇程序； 第4圖顯示ADC輸入電壓至參考供應電壓的映射； 第5圖顯示用於編程PWM產生器之方塊圖； 第6圖顯示功率轉換器與供電裝置的方塊圖，供電裝置利用電阻分壓器傳遞其所需供應電壓至功率轉換器； 第7圖顯示功率轉換器與供電裝置的方塊圖，供電裝置利用組合的電阻分壓器與低通濾波器傳遞其所需供應電壓至功率轉換器； 第8圖顯示ADC輸入電壓與參考供應電壓之間的關係； 第9圖顯示用於編程PWM產生器的另一方塊圖；以及 第10圖顯示流程圖，其顯示在供電裝置與功率轉換器中的任務流程。Referring to the drawings, wherein: Figure 1 shows a block diagram of a power converter and a power supply device, the power supply device uses a low pass filter to transfer its required supply voltage to the power converter; Figure 2 shows the input and output of the power supply device The relationship between the voltage (V_IO), the duty ratio of the pulse width modulation (PWM) signal used to deliver the desired supply voltage, and the input voltage Vin of the analog-to-digital converter (ADC); Figure 3 shows the duty ratio of the PWM signal. Selection procedure with maximum ADC input voltage; Figure 4 shows the mapping of the ADC input voltage to the reference supply voltage; Figure 5 shows the block diagram for programming the PWM generator; Figure 6 shows the block diagram of the power converter and the power supply The power supply device uses a resistor divider to transfer its required supply voltage to the power converter; Figure 7 shows a block diagram of the power converter and the power supply device, which uses a combined resistor divider and low-pass filter to deliver its location Voltage to power converter is required; Figure 8 shows the relationship between the ADC input voltage and the reference supply voltage; Figure 9 shows the other side of the PWM generator used to program Block diagram; and Figure 10 shows a flow diagram showing the flow of tasks in the power supply and power converter.
11‧‧‧功率轉換器 11‧‧‧Power Converter
12‧‧‧供電裝置 12‧‧‧Power supply unit
13‧‧‧脈衝寬度調變(PWM)產生器 13‧‧‧Pulse Width Modulation (PWM) Generator
14‧‧‧低通濾波器 14‧‧‧Low-pass filter
15‧‧‧可切換功率級 15‧‧‧Switchable power stage
16‧‧‧驅動器 16‧‧‧ drive
17‧‧‧控制器 17‧‧‧ Controller
18‧‧‧高側開關 18‧‧‧ high side switch
19‧‧‧低側開關 19‧‧‧Low side switch
110‧‧‧電感器 110‧‧‧Inductors
111‧‧‧電容器 111‧‧‧ capacitor
112‧‧‧類比數位轉換器(ADC) 112‧‧‧ Analog Digital Converter (ADC)
Claims (10)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201461970046P | 2014-03-25 | 2014-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201537876A true TW201537876A (en) | 2015-10-01 |
| TWI586086B TWI586086B (en) | 2017-06-01 |
Family
ID=52011203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW103142164A TWI586086B (en) | 2014-03-25 | 2014-12-04 | Power converter with dynamic voltage scaling |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3123266A1 (en) |
| JP (1) | JP2017509305A (en) |
| TW (1) | TWI586086B (en) |
| WO (1) | WO2015144263A1 (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5594324A (en) * | 1995-03-31 | 1997-01-14 | Space Systems/Loral, Inc. | Stabilized power converter having quantized duty cycle |
| JP4816508B2 (en) * | 2007-03-02 | 2011-11-16 | ヤマハ株式会社 | ΔΣ AD converter, class D amplifier, and DC-DC converter |
| TW200908526A (en) * | 2007-08-09 | 2009-02-16 | Ind Tech Res Inst | DC-DC converter |
| JP5055083B2 (en) * | 2007-10-19 | 2012-10-24 | 日立コンピュータ機器株式会社 | Digital control power supply |
| CN103475224B (en) * | 2008-11-21 | 2016-10-05 | L&L建筑公司 | It is applied to the digital compensator of power supply |
| GB0912745D0 (en) * | 2009-07-22 | 2009-08-26 | Wolfson Microelectronics Plc | Improvements relating to DC-DC converters |
| US8779740B2 (en) * | 2011-08-19 | 2014-07-15 | Infineon Technologies Austria Ag | Digital sliding mode controller for DC/DC converters |
| US8698475B2 (en) * | 2011-10-20 | 2014-04-15 | Monolithic Power Systems, Inc. | Switching-mode power supply with ripple mode control and associated methods |
| CN102931842A (en) * | 2012-10-12 | 2013-02-13 | 华为技术有限公司 | Chip dynamic voltage regulating circuit and terminal equipment |
-
2014
- 2014-12-03 WO PCT/EP2014/076445 patent/WO2015144263A1/en active Application Filing
- 2014-12-03 EP EP14808593.9A patent/EP3123266A1/en not_active Withdrawn
- 2014-12-03 JP JP2016558321A patent/JP2017509305A/en active Pending
- 2014-12-04 TW TW103142164A patent/TWI586086B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP3123266A1 (en) | 2017-02-01 |
| JP2017509305A (en) | 2017-03-30 |
| WO2015144263A1 (en) | 2015-10-01 |
| TWI586086B (en) | 2017-06-01 |
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