EP1700178A1 - Spannungsregelsystem - Google Patents
SpannungsregelsystemInfo
- Publication number
- EP1700178A1 EP1700178A1 EP04820845A EP04820845A EP1700178A1 EP 1700178 A1 EP1700178 A1 EP 1700178A1 EP 04820845 A EP04820845 A EP 04820845A EP 04820845 A EP04820845 A EP 04820845A EP 1700178 A1 EP1700178 A1 EP 1700178A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- vdd
- line
- control system
- level
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000003213 activating effect Effects 0.000 claims description 2
- 230000005669 field effect Effects 0.000 description 27
- 239000004065 semiconductor Substances 0.000 description 18
- 230000001105 regulatory effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is DC
- G05F1/462—Regulating voltage or current wherein the variable actually regulated by the final control device is DC as a function of the requirements of the load, e.g. delay, temperature, specific voltage/current characteristic
- G05F1/465—Internal voltage generators for integrated circuits, e.g. step down generators
Definitions
- the invention relates to a voltage control system according to
- Preamble of claim 1 and a voltage control method.
- a voltage level VINT used internally in the component can differ from a voltage level used outside the component, e.g. distinguish from an external voltage supply for the semiconductor component provided voltage level (supply voltage level) VDD.
- the internally used voltage level VINT can be lower than the level VDD of the supply voltage - for example the internally used voltage level VINT can be 1.5 V, and the supply voltage level VDD e.g. between 1.5 V and 2.5 V, etc.
- An internal voltage level VINT which is lower than the supply voltage level VDD has the advantage that the power losses in the semiconductor component can be reduced as a result.
- the voltage level VDD of the external voltage supply can be subject to relatively large fluctuations.
- the supply voltage is usually - so that the component can be operated as error-free as possible or in the most reliable way possible - by means of a voltage regulator into a (only relatively low
- Conventional voltage regulators can e.g. have a differential amplifier and a p-field effect transistor.
- the gate of the field effect transistor can be connected to an output of the differential amplifier, and the source of the field effect transistor e.g. to the external power supply.
- a reference voltage VREF which is subject to only relatively slight fluctuations, is applied to the plus or minus input of the differential amplifier.
- the voltage output at the drain of the field effect transistor can be direct, or e.g. can be fed back to the minus input of the differential amplifier with the interposition of a voltage divider.
- the differential amplifier regulates the voltage present at the gate connection of the field effect transistor so that the (feedback) drain voltage - and thus the voltage output by the voltage regulator - is constant and of the same size as the reference voltage, or e.g. larger by a certain factor.
- Reference voltage VREF can e.g. a corresponding conventional reference voltage generator, e.g. a band-gap reference voltage generating device can be used, which is derived from the above - the above relatively high supply voltage level VDD - supply voltage (which may be subject to relatively large voltage fluctuations) - e.g. by means of one or more diodes - generates a signal having a constant voltage level VBGR.
- a corresponding conventional reference voltage generator e.g. a band-gap reference voltage generating device can be used, which is derived from the above - the above relatively high supply voltage level VDD - supply voltage (which may be subject to relatively large voltage fluctuations) - e.g. by means of one or more diodes - generates a signal having a constant voltage level VBGR.
- the signal having the constant voltage level VBGR can be forwarded to a buffer circuit, there stored accordingly (and temporarily) and - in the form of corresponding signals having the above-mentioned reference voltage level VREF - further distributed (for example to the above-mentioned voltage regulator (or to the plus or minus input of the corresponding voltage regulator differential amplifier), and / or to further devices provided on the semiconductor component, for example further voltage regulators).
- the object of the invention is to provide a new type of voltage control system and a new type of voltage control method.
- a voltage control system which a voltage applied to an input of the voltage regulation system first voltage is converted into a second voltage which can be tapped at an output of the voltage regulation system, comprising first means for generating a substantially constant voltage from the first voltage, or a voltage derived therefrom, wherein a further device is additionally provided for generating a further voltage from the first voltage, or a voltage derived therefrom, in particular a voltage which can be greater than that of the first Device generated voltage.
- the voltage generated by the first device, or a voltage obtained therefrom, and the further voltage generated by the further device, or a voltage obtained therefrom, can be used particularly advantageously to control a voltage regulation circuit arrangement. in particular as a reference voltage for a voltage control circuit arrangement which generates the above-mentioned second voltage.
- a device is preferably additionally provided for activating and / or deactivating the further device.
- the further device can be activated (and thereby achieved that the voltage control system outputs a higher (second) voltage than if the other device is deactivated).
- Figure 1 is a schematic representation of a conventional voltage control system
- Figure 2 is a schematic representation of a voltage control system according to an embodiment of the invention.
- FIG. 3 shows a schematic detailed illustration of a buffer circuit that can be used in the voltage control system shown in FIG. 2;
- FIG. 4 shows a schematic detailed illustration of a voltage regulator that can be used in the voltage regulating system shown in FIG. 2;
- Figure 5 is a schematic representation of the level of the output voltage of that shown in Figure 2 Voltage control system, depending on the level of the supply voltage, in the activated and in the non-activated state of the additional buffer circuit;
- FIG. 6 shows a schematic detailed illustration of a further, additional buffer circuit that can be used in the voltage control system shown in FIG. 2;
- FIG. 1 shows a schematic representation of a voltage control system 1 according to the prior art, which is arranged on a corresponding semiconductor component.
- a reference voltage generating device 2 e.g. a band-gap reference voltage generating device
- a buffer circuit 3 e.g. a buffer circuit
- one or more voltage regulators 4 e.g. corresponding down-converter regulators.
- a supply voltage provided by an external voltage supply for the semiconductor component is supplied via corresponding lines 5, 6, 7.
- the supply voltage has a voltage level VDD, which is relatively high and possibly subject to relatively strong fluctuations.
- the reference voltage generating device 2 generates from the supply voltage - e.g. by means of one or more diodes - a signal having a constant voltage level VBGR.
- the signal having the constant voltage level VBGR is - via a corresponding line 8 - passed on to the above-mentioned buffer circuit 3, there accordingly (temporarily) stored, and - in the form of corresponding signals, which also have a constant voltage level VREF - further distributed (for example - via a line 9a - to the above-mentioned voltage regulator 4, and / or to other devices provided on the semiconductor component, for example further voltage regulators, etc.).
- the voltage regulator 4 can e.g. a differential amplifier and a p-field effect transistor.
- the gate of the field effect transistor can be connected to an output of the
- Differential amplifier can be connected, and the source of the field effect transistor - via a line 9b - to the above.
- external power supply (voltage level VDD).
- the voltage VREF At the plus or minus input of the differential amplifier - as a “reference voltage” - the voltage VREF, which is passed on to the voltage regulator 4 via the above-mentioned line 9a, can be applied (or only subjected to relatively small fluctuations).
- the voltage output at the drain of the field effect transistor can be direct, or e.g. with the interposition of a voltage divider to the minus input of the differential amplifier.
- the differential amplifier regulates the voltage present at the gate connection of the field effect transistor in such a way that the (feedback) drain voltage - and thus that of the voltage regulator 4 e.g. voltage VINT - output on a corresponding line 9c - is constant and of the same size as the reference voltage VREF, or e.g. larger by a certain factor.
- Fluctuated voltage VDD a relatively small fluctuations, to a certain constant, reduced value regulated voltage VINT are generated, with the aid of which appropriate devices provided on the semiconductor component can be operated - reliably and with only a relatively low power loss.
- FIG. 2 shows a schematic illustration of a voltage control system 11, which is arranged on a corresponding semiconductor component, in accordance with an exemplary embodiment of the invention.
- the semiconductor component can e.g. are a corresponding, integrated (analog or digital) computing circuit, and / or a semiconductor memory component such as e.g. a function memory component (PLA, PAL, etc.) or table memory component (e.g. ROM or RAM), in particular an SRAM or DRAM.
- a semiconductor memory component such as e.g. a function memory component (PLA, PAL, etc.) or table memory component (e.g. ROM or RAM), in particular an SRAM or DRAM.
- the voltage control system 11 has a reference voltage generator 12 (e.g., a band-gap reference voltage generator), one
- Buffer circuit 13 and one or more voltage regulators 14 (e.g. corresponding down-converter regulators).
- voltage regulators 14 e.g. corresponding down-converter regulators.
- the reference voltage generating device 12 - e.g. A supply voltage provided by an external voltage supply for the semiconductor component is supplied via corresponding lines 15a, 15b, 16a, 17.
- the supply voltage has a - relatively high, and possibly relatively strong fluctuations - voltage level VDD.
- the level of the supply voltage can be between 1.5 V and 2.5 V, for example between 1.6 V and 2.0 V (1.8 V + 0.2 V).
- the reference voltage generating device 12 generates from the supply voltage - e.g. by means of one or more diodes
- the signal having the constant voltage level VBGR is - via a corresponding line 18 - to the above.
- Buffer circuit 13 forwarded, there (appropriately) stored, and - in the form of corresponding signals which also have a constant voltage level VREF1 - distributed (for example - via a line 19a - to the above-mentioned voltage regulator 14, and / or - for example via corresponding further, Lines not shown here - to further devices provided on the semiconductor component (for example further voltage regulators, etc.).
- FIG. 3 shows a schematic detailed illustration of a buffer circuit 13 that can be used in the voltage control system 11 shown in FIG.
- the buffer circuit 13 has a differential amplifier 20 with a plus input 21a and a minus input 21b, and a field effect transistor 22 (here: a p-channel MOSFET).
- An output of the differential amplifier 20 is connected via a line 23 to a gate connection of the field effect transistor 22.
- the source of the field effect transistor 22 is connected via a line lb (which - according to FIG. 2 - is connected to the above lines 16a, 17) to the one having the above-mentioned, relatively high voltage level VDD
- the above-mentioned signal which is supplied via line 18 from the reference voltage generator 12 and has the above-mentioned, relatively constant voltage level VBGR, is present at the minus input 21b of the differential amplifier 20.
- the signal which is output at the drain of the field effect transistor 22 and has the above-mentioned, relatively constant voltage level VREF1 is fed back via a line 24 and a line 25 connected thereto to the plus input 21a of the differential amplifier 20, and - via the line 24 Line 19a - to the above Distributed voltage regulator 14 (and / or - e.g. via corresponding further lines, not shown here - to the above-mentioned further voltage regulators, etc.).
- FIG. 4 shows a schematic detailed illustration of a voltage regulator 14 which can be used in the voltage regulating system 11 shown in FIG.
- the voltage regulator 14 has a differential amplifier 28 with a plus input 32 and a minus input 31, and a field effect transistor 29 (here: a p-channel MOSFET) ' .
- An output of the differential amplifier 28 is connected via a line 29a to a gate terminal of the field effect transistor 29.
- a line 27 connected to this from the buffer circuit 13 and having the above-mentioned, relatively constant voltage level VREF1 (reference) signal, and optionally also a further buffer circuit 33 provided in parallel with the above-mentioned buffer circuit 13 (Further) (reference) signal (which - as will be explained in greater detail below - has a relatively high voltage level VREF2 which is subject to variable or possibly corresponding fluctuations, and which has a line 26 and the line 27 connected to it is forwarded from the further buffer circuit 33 to the voltage regulator 14).
- Voltage (VINT) is fed back directly to the differential amplifier 28 in a first embodiment of the voltage regulator 14;
- the drain of the field-effect transistor 29 can be (directly) connected via a line 19c (and a line connected to it, not shown here) to the minus input 31 of the differential amplifier 28 (the feedback present at the minus input 31 of the differential amplifier 28)
- the voltage (VINT_FB) is then the same as the drain voltage (VINT)).
- the voltage (VINT) output at the drain of the field effect transistor 29 is interposed with the interposition of a voltage divider (not shown here), i.e. fed back to the differential amplifier 28 in a divided manner.
- the drain of the voltage (VINT) output at the drain of the field effect transistor 29 is interposed with the interposition of a voltage divider (not shown here), i.e. fed back to the differential amplifier 28 in a divided manner.
- Field effect transistor 29 can be connected via line 19c (and a line connected to it, not shown here) to a first resistor R 2 (not shown) of the voltage divider, which on the one hand (via a further voltage divider resistor R ⁇ (also not shown)) with the earth, and on the other hand with the minus Input 31 of differential amplifier 28 is connected ("the feedback voltage present at negative input 31 of differential amplifier 28 (VINT_FB) is then a certain factor smaller than the drain voltage (VINT)).
- the differential amplifier 28 controls the above.
- First embodiment of the voltage regulator 14 (with direct feedback of the drain voltage (VINT)) the voltage present at the gate connection of the field effect transistor 29 such that the (feedback) drain voltage (VINT) is the same as that at the plus input 32 of the differential amplifier 28 applied reference voltage (ie VREFl (if VREFl is larger than VREF2), or VREF2 (if VREF2 is larger than VREFl) (see below)).
- VINT VREF x (1+ (R 2 / R ⁇ ))
- VINT represents the output voltage of the voltage control system 11.
- VINT Output voltage of the voltage control system 1 - as illustrated for example in FIG. 5 - in contrast to that Supply voltage (VDD), which can be subject to relatively large fluctuations - has a constant variable VINTnom - for example 1.5 V (but only if - as will be explained in more detail below - the (further) buffer circuit 33 is not activated ( partially shown in dashed lines in FIG. 5), or if - with activated buffer circuit 33 - the supply voltage (VDD) is smaller than a predetermined threshold value (VDDnom) (as will also be explained in more detail below)).
- VDDnom predetermined threshold value
- the output voltage VINT present on the line 19c can - if necessary via further lines, not shown here - be passed on as “internal supply voltage” to corresponding devices provided on the semiconductor component (which thus - in the case of a constant voltage value VINTnom mentioned above having output voltage VINT - with very high reliability, and with only relatively low power loss, and relatively long life can be operated).
- Output voltage VINT operated devices, and / or their power loss is increased - the level of the output voltage VINT present on line 19c, i.e. the level of the internal supply voltage above the above - the value ("nominal value" VINTnom) provided in normal operation and specified in the respective specification may be increased.
- This (further, second) operating mode can be used, for example, if the semiconductor component is to be used in high-end graphics systems, for example as a high-end graphics memory component, for example as Memory component, in particular DRAM memory component for a high-clocked, in particular overclocked processor, in particular graphics processor.
- the voltage control system 11 provides - in addition to the above-mentioned reference voltage generating device 12 and the buffer circuit 13 - the above-mentioned further buffer circuit 33, and - as will be explained in more detail below - a (further) reference voltage Generating device 34 (for example a voltage tracking reference voltage generating device), and an (additional) register 35.
- a (further) reference voltage Generating device 34 for example a voltage tracking reference voltage generating device
- an (additional) register 35 for example a voltage tracking reference voltage generating device
- the voltage control system 11 Immediately after the start-up (or switching on / starting up) of the voltage control system 11 (“power-up”), or after the — for the first time — supply of the above-mentioned external supply voltage to the line 17 (which, as explained, the above, possibly . Varying voltage level VDD), the voltage control system 11 is initially operated in the above-mentioned “normal operation”.
- Register 35 a corresponding (e.g. "logic low")
- Output signal VTRACK_ENABLE is output and - via a corresponding control line 36 - forwarded to a corresponding control connection of the buffer circuit 33 (cf. also FIG. 6).
- the output of a corresponding (for example “logically low”) output signal at the above-mentioned register output when the voltage control system 11 is switched on / started up (“power-up”) (which leads to a — initially — deactivated state of the buffer circuit 33) can be ensured in this way, for example that at Switching on / starting up the voltage control system 11 the register is reset accordingly by applying a corresponding reset signal to a line 37 connected to the reset input of the register 36.
- FIG. 6 shows a schematic detailed illustration of a buffer circuit which can be used as a further, additional buffer circuit 33 in the voltage control system 11 (which, as explained, is connected to the register 35 via the line 36).
- the buffer circuit 33 has a differential amplifier 120 with a plus input 121a and a minus input 121b, and a field effect transistor 122 (here: a p-channel MOSFET).
- An output of the differential amplifier 120 is connected via a line 123 to a gate connection of the field effect transistor 122.
- Field effect transistor 122 is connected via a line 116b (which - according to FIG. 2 - via a line 116c and a line 115a to the above-mentioned lines 15a, 16a, 17) to the supply voltage having the above-mentioned, relatively high voltage level VDD.
- VTRACK voltage level supplied via a line 118 from the reference voltage generating device 34 and which (as will be explained in more detail below) has a variable or corresponding fluctuations Signal on.
- the output at the drain of the field effect transistor 122, the above. - possibly variable - signal having a voltage level VREF2 is fed back via a line 124 and a line 125 connected thereto to the plus input 121a of the differential amplifier 120 and output on the line 26 connected to line 124.
- the buffer circuit 33 when the buffer circuit 33 is in an “activated” state (ie with a “logically high” signal VTRACK_ENABLE present on the control line 36), the above-mentioned one, which has a variable voltage level VTRACK, and via the line 118 forwarded by the reference voltage generating device 34 to the buffer circuit 33 - signal (between ) saved, and - in the form of corresponding signals having a voltage level VREF2 corresponding to the voltage level VREF2, which can be picked up on the line 26 - passed on to the above-mentioned voltage regulator 14 (and / or - for example via corresponding further lines, not shown here - to the above-mentioned further ones Voltage regulator, etc.).
- the reference voltage generator 34 (“tracking reference voltage generator”) - via a line 115b, and the lines 115a, 15a, 16a, 17 connected to it - are at the above-mentioned, the relatively high voltage levels VDD - supply voltage connected.
- the (further) reference voltage generating device 34 uses the supply voltage having the voltage level VDD to generate a voltage - which is forwarded via line 118 to the buffer circuit 33 - with a level VTRACK which can be higher than the level VBGR of that of the (first) reference voltage - Generation device 12 generates voltage VBGR (which means that the level VREF2 of the voltage forwarded from the (further) buffer circuit 33 via line 26 to the voltage regulator 14 can be higher than the level VREFl of the (first) buffer circuit 13 via the line 19a to the voltage regulator 14 forwarded voltage).
- the (further) reference voltage generating device 34 can generate a voltage, which is passed on to the buffer circuit 33 via the line 118, from the supply voltage having the voltage level VDD which has a voltage level VTRACK which is proportional to the voltage level VDD of the supply voltage.
- the level VTRACK is advantageous (or in an alternative embodiment) that of the (further)
- the (further) reference voltage generating device 34 can be designed in the form of a voltage divider circuit (having a plurality of resistors connected in series (for example a first resistor can be connected to the supply voltage via line 115b, and a second resistor in series with the first Resistance to the earth potential, the voltage output by the (further) reference voltage generating device 34 being tapped between the two resistors and being able to be passed on to the buffer circuit 33 via the line 118).
- a voltage divider circuit having a plurality of resistors connected in series (for example a first resistor can be connected to the supply voltage via line 115b, and a second resistor in series with the first Resistance to the earth potential, the voltage output by the (further) reference voltage generating device 34 being tapped between the two resistors and being able to be passed on to the buffer circuit 33 via the line 118).
- the (further) reference voltage generating device 34 (and the - first - reference voltage generating device 12) is (or are) designed such that when the supply voltage (VDD) is the same as the above-mentioned predetermined threshold value (VDDnom), the level VTRACK of the voltage generated by the (further) reference voltage generating device 34 is the same as the level VBGR of the voltage generated by the (first) reference voltage generating device 12 (cf. also FIG. 5) - the level VREF1 of the voltage by the buffer circuit 13 generated voltage is then identical to the level VREF2 of the voltage generated by the buffer circuit 33).
- VINTnom the level of the signal VINT output by the voltage regulator 14 - corresponding to the level of the signal VREFl - regardless of the current level of the level VDD of the supply voltage is constantly the same size (VINTnom)).
- 19c output signal VINT is determined in each case by that of the signals VREF1, VREF2 present on the lines 19a, 26, which are connected to one another and connected to the line 27 and which, at the moment, has a higher level (this ensures that - as in FIG. 5 is illustrated with the aid of the solid line - the level of the signal VINT output by the voltage regulator 14 cannot drop below the standard or nominal level (VINTnom).
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Control Of Electrical Variables (AREA)
- Dram (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10361724A DE10361724A1 (de) | 2003-12-30 | 2003-12-30 | Spannungsregelsystem |
| PCT/EP2004/053051 WO2005064426A1 (de) | 2003-12-30 | 2004-11-23 | Spannungsregelsystem |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1700178A1 true EP1700178A1 (de) | 2006-09-13 |
| EP1700178B1 EP1700178B1 (de) | 2008-12-31 |
Family
ID=34716263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04820845A Expired - Lifetime EP1700178B1 (de) | 2003-12-30 | 2004-11-23 | Spannungsregelsystem |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7965066B2 (de) |
| EP (1) | EP1700178B1 (de) |
| JP (1) | JP2007517298A (de) |
| CN (1) | CN1902558A (de) |
| DE (2) | DE10361724A1 (de) |
| WO (1) | WO2005064426A1 (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5475435B2 (ja) * | 2009-12-24 | 2014-04-16 | 三星電子株式会社 | 電圧安定化装置及びそれを用いた半導体装置並びに電圧安定化方法 |
| US8493795B2 (en) * | 2009-12-24 | 2013-07-23 | Samsung Electronics Co., Ltd. | Voltage stabilization device and semiconductor device including the same, and voltage generation method |
| US10401886B1 (en) * | 2014-07-30 | 2019-09-03 | Cirrus Logic, Inc. | Systems and methods for providing an auto-calibrated voltage reference |
| US10915122B2 (en) * | 2017-04-27 | 2021-02-09 | Pixart Imaging Inc. | Sensor chip using having low power consumption |
| US10386875B2 (en) * | 2017-04-27 | 2019-08-20 | Pixart Imaging Inc. | Bandgap reference circuit and sensor chip using the same |
| TWI671983B (zh) | 2018-08-08 | 2019-09-11 | 華邦電子股份有限公司 | 電壓調節器及動態洩流電路 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5402375A (en) | 1987-11-24 | 1995-03-28 | Hitachi, Ltd | Voltage converter arrangement for a semiconductor memory |
| KR930009148B1 (ko) * | 1990-09-29 | 1993-09-23 | 삼성전자 주식회사 | 전원전압 조정회로 |
| JP2642512B2 (ja) * | 1990-11-16 | 1997-08-20 | シャープ株式会社 | 半導体集積回路 |
| JP2838344B2 (ja) * | 1992-10-28 | 1998-12-16 | 三菱電機株式会社 | 半導体装置 |
| US5532618A (en) * | 1992-11-30 | 1996-07-02 | United Memories, Inc. | Stress mode circuit for an integrated circuit with on-chip voltage down converter |
| JPH09140126A (ja) * | 1995-05-30 | 1997-05-27 | Linear Technol Corp | 適応スイッチ回路、適応出力回路、制御回路およびスイッチング電圧レギュレータを動作させる方法 |
| JP3516556B2 (ja) * | 1996-08-02 | 2004-04-05 | 沖電気工業株式会社 | 内部電源回路 |
| JPH10133754A (ja) * | 1996-10-28 | 1998-05-22 | Fujitsu Ltd | レギュレータ回路及び半導体集積回路装置 |
| JPH11231954A (ja) * | 1998-02-16 | 1999-08-27 | Mitsubishi Electric Corp | 内部電源電圧発生回路 |
| US6333623B1 (en) * | 2000-10-30 | 2001-12-25 | Texas Instruments Incorporated | Complementary follower output stage circuitry and method for low dropout voltage regulator |
| US6441594B1 (en) * | 2001-04-27 | 2002-08-27 | Motorola Inc. | Low power voltage regulator with improved on-chip noise isolation |
| JP2004062638A (ja) * | 2002-07-30 | 2004-02-26 | Renesas Technology Corp | 基準電圧発生回路 |
-
2003
- 2003-12-30 DE DE10361724A patent/DE10361724A1/de not_active Ceased
-
2004
- 2004-11-23 CN CNA200480039647XA patent/CN1902558A/zh active Pending
- 2004-11-23 WO PCT/EP2004/053051 patent/WO2005064426A1/de not_active Ceased
- 2004-11-23 US US10/585,151 patent/US7965066B2/en not_active Expired - Fee Related
- 2004-11-23 JP JP2006546142A patent/JP2007517298A/ja active Pending
- 2004-11-23 EP EP04820845A patent/EP1700178B1/de not_active Expired - Lifetime
- 2004-11-23 DE DE502004008797T patent/DE502004008797D1/de not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2005064426A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1700178B1 (de) | 2008-12-31 |
| CN1902558A (zh) | 2007-01-24 |
| DE10361724A1 (de) | 2005-08-04 |
| US20080191790A1 (en) | 2008-08-14 |
| WO2005064426A1 (de) | 2005-07-14 |
| DE502004008797D1 (de) | 2009-02-12 |
| JP2007517298A (ja) | 2007-06-28 |
| US7965066B2 (en) | 2011-06-21 |
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