EP1439443A1 - Schaltung zur Spannungsversorgung und Verfahren zur Erzeugung einer Versorgungsspannung - Google Patents
Schaltung zur Spannungsversorgung und Verfahren zur Erzeugung einer Versorgungsspannung Download PDFInfo
- Publication number
- EP1439443A1 EP1439443A1 EP20030000815 EP03000815A EP1439443A1 EP 1439443 A1 EP1439443 A1 EP 1439443A1 EP 20030000815 EP20030000815 EP 20030000815 EP 03000815 A EP03000815 A EP 03000815A EP 1439443 A1 EP1439443 A1 EP 1439443A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- voltage
- supply
- comparator
- supply voltage
- vddext1
- 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
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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
-
- 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
Definitions
- the invention relates to a circuit for power supply and a method for generating a supply voltage. Both the circuit and the method are for example for powering an integrated circuit usable.
- FIG. 1 From the prior art is an embodiment of a Circuit for generating a voltage supply, as in Figure 1 is shown, known.
- the circuit shown is selected between two external power sources and with the help of the selected external supply voltage the Output voltage VDD formed.
- the circuit has one first supply voltage input IN1 at which a first external Supply voltage VDDEXT1 is applied, and a second Supply voltage input IN2 at which a second external Supply voltage VDDEXT2 is present.
- the two external Supply voltages VDDEXT1 and VDDEXT2 are set to respectively a comparator input of a comparator CMP out.
- the two external supply voltages VDDEXT1 and VDDEXT2 also at the inputs of two voltage regulators REG1 and REG2 on.
- the two voltage regulators REG1 and REG2 are controlled.
- the external voltage VDDEXT3 also forms at the operating voltage connection BA of the comparator CMP the operating voltage for the comparator CMP and also the operating voltage for a downstream inverter INV.
- the from the comparator CMP generated output voltage ENREG1 serves as additional Control voltage for the first voltage regulator REG1 and at the same time as input voltage for the inverter INV, which forms an inverted output voltage ENREG22.
- This inverted output voltage ENREG22 serves as additional Control voltage for the second voltage regulator REG2.
- the two outputs of the voltage regulators REG1 and REG2 are connected together and form the supply voltage output O the circuit for power supply.
- the first external supply voltage VDDEXT1 is larger as the second external supply voltage VDDEXT2:
- the voltage ENREG1 at the comparator output increases the value of the external voltage VDDEXT3.
- the inverted Voltage ENREG22 at the output of the inverter INV takes the value zero.
- the first voltage regulator REG1 regulates the Supply voltage VDD to the value of the nominal supply voltage VDDnom.
- the second voltage regulator REG2 disconnects the second external supply voltage VDDEXT2 from Supply voltage output O, because the voltage ENREG22 0 is.
- the first external supply voltage VDDEXT1 is smaller as the second external supply voltage VDDEXT2:
- the inverted output voltage ENREG2 at the output of the inverter INV is then equal to external voltage VDDEXT3.
- the second regulator REG2 controls the Output voltage VDD to the value of the nominal voltage VDDnom.
- the first voltage regulator separates the first external one Supply voltage VDDEXT1 from the supply voltage output O, because the voltage ENREG2 is 0.
- the circuit shown in Figure 1 for power supply has however, a number of disadvantages. If the two external Supply voltages VDDEXT1 and VDDEXT2 greater than the nominal Voltage VDDnom are, both could be for the scheme the supply voltage VDD can be used. It will, however only the voltage used, which is the higher of the two voltages is. In a system where a power supply Although high voltage, but not high Providing power is one such solution not optimal. With such a solution, it is possible to that the voltage source is used, although the higher voltage, but the lower current supplies. Voltage sources, the one high supply voltage but only one can provide low power, for example be magnetic or electric fields.
- both Voltage sources each supply a supply voltage, which is greater than the nominal voltage VDDnom and the Voltage source that the greater voltage available turns off, is also the one with this voltage linked voltage regulator off and the other voltage regulator switched on. It is difficult a stable Supply voltage VDD to generate while between the Voltage regulators REG1 and REG2 is switched. if the two supply voltage sources supply supply voltages, which are the same size, the two voltage regulators alternatively switched on and off, which can lead to the entire control system stops working properly.
- FIG. 2 a Another embodiment for a power supply known.
- the first external supply voltage VDDEXT1 via the first supply voltage input IN1 and a voltage converter 1 to the first input a comparator CMP1 out.
- the second external supply voltage VDDEXT2 is via the second supply voltage input IN2 and a second voltage converter 2 led to the first input of a second comparator CMP2.
- the second inputs of the first comparator CMP1 and of the second comparator CMP2 are connected to the output of a reference voltage source 3, so that they have a reference voltage VREF.
- the external voltage VDDEXT3 which at the voltage input IN3 is applied to control the two voltage regulators REG1 and REG2 as well as operating voltage for the two Comparators CMP1 and CMP2 used.
- the external voltage VDDEXT3 at the input of the voltage source 3 which generates the reference voltage VREF.
- the first external supply voltage VDDEXT1 and the second external supply voltage VDDEXT2 compared with the reference voltage VREF.
- the two voltage converters 1 and 2 the external supply voltages VDDEXT1 and VDDEXT2 multiply by a factor k.
- the reference voltage VREF * k is greater than the nominal Voltage VDDnom is.
- the voltage VDDEXT1 is greater than the reference voltage VREF * k and the voltage VDDEXT2 is also greater than the reference voltage VREF * k:
- the voltage VDDEXT1 is smaller than the reference voltage VREF * k and the voltage VDDEXT2 is greater than the reference voltage VREF * k:
- the second voltage regulator REG2 regulates the Supply voltage VDD to the value of the nominal voltage VDDnom.
- the first voltage regulator REG1 is turned off.
- the voltage VDDEXT1 is smaller than the reference voltage VREF * k and the voltage VDDEXT2 is smaller than the reference voltage VREF * k:
- both voltage regulators REG1 and REG2 are switched off.
- the supply voltage VDD floats.
- the voltage VDDEXT1 is smaller than the reference voltage VREF * k and the voltage VDDEXT2 is greater than the reference voltage VREF * k:
- the first voltage regulator REG1 regulates the supply voltage VDD to the value of the nominal voltage VDDnom.
- the second voltage regulator REG2 is turned off.
- the two voltage regulators REG1 and REG2, the two voltage converters 1 and 2 and the reference voltage source 3 must be matched exactly so that the value k * VREF is greater than the nominal voltage VDDnom. If this not the case, for example, if k * VREF is less than the first external supply voltage is VDDEXT1, and the nominal voltage VDDnom in turn smaller than the nominal Voltage VDDnom is smaller and which in turn is smaller than the second External supply voltage VDDEXT2 is due this wrong vote both voltage regulators REG1 and REG2 is activated and a return current flows from the second external one Voltage source via the second supply voltage input IN2 to the supply voltage output O and from there back to the first external supply source at the first supply voltage input IN1.
- the two voltage regulators REG1 and REG2 between different nominal voltages VDDnom1, VDDnom2, VDDnom3, etc. can be switched. In this case it is necessary that the two voltage converters 1 and 2 between different multiplication factors k1, k2, k3, etc. can switch. It will the more difficult, the two voltage regulators REG1 and REG2, the two voltage converters 1 and 2 and the reference voltage source 3 in the manner already described exactly to match, for each pair (VDDnom1, k1), (VDDnom2, k2), (VDDnom3, k3). This has to Result that the circuit needs more chip area, the Power consumption increases and the complexity of the circuit increases.
- An object of the invention is a circuit for power supply and a method for generating a supply voltage indicate that no reverse current occurs. Of the Power should be from a power source to the supply voltage output the circuit is flowing and not from a power source via the supply voltage output of the circuit back to other power source.
- the criteria for switching on and off the Rungs are chosen so that a correct regulation of Supply voltage in a number of different configurations is possible.
- circuit according to the invention for power supply and the method for generating a supply voltage may advantageously be those mentioned in the prior art Disadvantages are avoided.
- the task is done by a circuit for power supply with the features according to claim 1 and a method for generating a supply voltage with the features according to Claim 8 solved.
- the inventive circuit for power supply has a first supply voltage input, which with a first comparator and a first voltage regulator connected wherein the first comparator is the first voltage regulator controls.
- the circuit has a second supply voltage input on, which with a second comparator and a second voltage regulator, wherein the second comparator controls the second voltage regulator.
- the circuit has a supply voltage output on, which with outputs of the two voltage regulators connected and fed back to the two comparators is.
- a supply voltage is a first supply voltage to a first comparator and a first voltage regulator applied, wherein the first comparator is the first voltage regulator is controlled.
- a second supply voltage is connected to a second comparator and a second voltage regulator applied, wherein the second comparator of the second voltage regulator is controlled.
- At a supply voltage output which is connected to the outputs of the two voltage regulators and is fed back to the two comparators the supply voltage.
- a first voltage converter which is between the first supply voltage input and the first comparator is connected.
- a second one Voltage converter provided, which between the second Power supply input and the second comparator is switched. This allows the two external supply voltages, those at the first and second supply voltage inputs present, multiplied by a certain value or reduced by a certain voltage value become.
- Circuit is provided a third voltage converter, which between the supply voltage output and the first comparator is connected. There is also a fourth Voltage converter provided, which between the supply voltage output and the second comparator is connected.
- a third voltage converter which between the supply voltage output and the first comparator is connected.
- a fourth Voltage converter provided, which between the supply voltage output and the second comparator is connected.
- the voltage converter are designed such that the voltage that can be applied to their inputs can be transformed into a voltage proportional to this voltage with a defined Proportionality factor is implemented.
- the voltage converter be designed such that the their inputs can be applied voltage in one to a certain Value reduced voltage is feasible.
- a voltage input to be provided which with operating connections of the Comparators and the control inputs of the voltage regulator connected is. This is among other things the operating voltage for the comparators can be specified.
- the first Voltage regulator a first N-channel MOS transistor and the second voltage regulator a second N-channel MOS transistor exhibit.
- the control outputs of the two transistors are on the control inputs of the two transistors fed back.
- FIGS. 1 and 2 will not be discussed further below. Since their explanation already in the introduction to the description took place. It is therefore at this point on the Reference to the introduction.
- FIG Circuit for generating a supply voltage is a first supply voltage input IN1 is provided, the with a first not shown voltage source for generating a first external supply voltage VDDEXT1 connectable is.
- the first supply voltage input IN1 applied first external supply voltage VDDEXT1 is via a first voltage converter 1 to a first input a first comparator CMP1 out.
- the circuit has a second one Supply voltage input IN2, with a second not shown voltage source for generating a second external supply voltage VDDEXT2 is connectable.
- the second external supply voltage VDDEXT2 is above a second voltage converter 2 at a first input of a second comparator CMP2 and at an input of a second Voltage regulator REG2 on.
- the first voltage regulator REG1 is controlled.
- the second voltage regulator REG2. This is via the output voltage ENREG2 of the second Comparator CMP2 and the external voltage VDDEXT3 controlled.
- the outputs of the two voltage regulators REG1 and REG2 are connected to each other and lead on the one hand to the supply voltage output O the circuit and on the other hand the inputs of a third and fourth voltage converter 3 and 4, which in turn communicate with the second inputs of the first and the second comparator CMP1 and CMP2 are connected.
- the output O of the circuit is the desired supply voltage VDD can be tapped.
- the value k * VDDEXT1 is smaller than the nominal voltage VDDnom and the value k * VDDEXT2 is larger than the nominal one Voltage VDD:
- the supply voltage is at power up VDD is zero. Therefore, the value k * VDDEXT1 is greater than the supply voltage VDD and also the value k * VDDEXT2 is greater than the supply voltage VDD.
- the control voltage ENREG1 at the output of the comparator CMP1 then takes the value the voltage VDDEXT3 and the control voltage ENREG2 at the output of the second comparator CMP2 also takes the value of the external Voltage VDDEXT3 on, which has the consequence that the voltage regulator Regulate REG1 and REG2.
- the supply voltage VDD Therefore, continue to increase until it reaches the value k * VDDEXT1 and cross it.
- the first comparator switches CMP1 and brings the control voltage ENREG1 on the Value zero.
- the voltage regulator REG1 is turned off.
- the supply voltage output O is now from the first external supply voltage VDDEXT1 disconnected, which is beneficial is because the first external supply voltage VDDEXT1 is less than the supply voltage VDD. Otherwise, would a current from the supply voltage input IN2 to the supply voltage input IN1 flow.
- the supply voltage VDD continues to increase until it reaches the value of nominal voltage VDDnom reaches and is regulated to this value. Because the value k * VDDEXT2 is greater than the nominal supply voltage VDDnom is, the control voltage ENREG2 remains at the output of the second comparator CMP2 on the value of the external Voltage VDDEXT3.
- the supply voltage is at power up VDD equals zero, so the value k * VDDEXT1 is greater than the Supply voltage VDD and also the value k * VDDEXT2 larger when the supply voltage is VDD.
- the control voltage ENREG1 at the output of the first comparator CMP1 therefore takes the Value of the external voltage VDDEXT3 and the control voltage ENREG2 at the output of the second comparator CMP2 also the Value of the external voltage VDDEXT3. Both voltage regulators REG1 and REG2 are working now.
- the value k * VDDEXT1 is smaller than the nominal voltage VDDnom and the value k * VDDEXT2 is smaller than the nominal one Voltage VDDnom and the first external supply voltage VDDEXT1 is smaller than the second external supply voltage VDDEXT2:
- the supply voltage is VDD at power-up equals zero, so that the value k * VDDEXT1 is greater than the Supply voltage VDD and also the value k * VDDEXT2 is greater than the supply voltage VDD.
- the comparator CMP1 therefore brings the control voltage ENREG1 to the Value of the external voltage VDDEXT3 and the second comparator CMP2 the control voltage ENREG2 also to the value of the external Voltage VDDEXT2.
- Both voltage regulators REG1 and REG2 work now and make sure that the supply voltage VDD increases until the value reaches k * VDDEXT1 and is exceeded.
- the first comparator CMP1 now brings the Control voltage ENREG1 to zero, leaving the first Voltage regulator REG1 is turned off.
- the supply voltage VDD continues to increase until it reaches the value k * VDDEXT2. A further increase in the supply voltage VDD takes place not, because now the second comparator CMP2 the control voltage ENREG2 sets to zero and thus the second Voltage regulator REG2 switches off.
- the circuit is symmetrical, can at state 4.a): k * VDDEXT2 smaller VDDnom and k * VDDEXT1 larger VDDnom the behavior of the circuit from operating state 1: k * VDDEXT1 smaller VDDnom and k * VDDEXT2 larger VDDnom by Derive that the two suffixes 1 and 2 of the two external supply voltages VDDEXT1 and VDDEXT2 with each other be reversed.
- both supply voltages VDDEXT1 and VDDEXT2 are greater as the nominal supply voltage VDDnom / k and a the two voltage sources is turned off, it is easier to keep the supply voltage VDD stable as in State of the art, because one of the two voltage regulator REG1 or REG2 remains in operation.
- the saturated operating state is given when the voltage VDS is greater than the voltage difference VGS - VTH.
- NGATE is the voltage at the output of the regulator loop 5. This is the case in particular when the Early effect of the NMOS transistors is minimized by making the length of the transistors large.
- the supply voltage VDD drops ( 2 - 1) * (VGS - VTH), so that as the width of the NMOS transistor increases, the voltage decreases more slowly.
- the two voltage regulators REG1 and REG2 operate in principle in the same way. Therefore, in the following, the Operation of the first voltage regulator REG1 representative described for both.
- the control voltage ENREG1 equals Is zero
- the resistance in the voltage regulator REG1 is between its entrance, with the first supply voltage input IN1 is connected, and its output, with the supply output O is connected, infinitely large.
- the control voltage ENREG1 is the value of the external voltage VDDEXT3 assumes and if the supply voltage VDD is greater as the nominal voltage VDDnom is, the resistance decreases in the voltage regulator between its input and output as long until the supply voltage VDD equals the nominal Voltage VDDnom is. The resistance can go to infinity climb.
- control voltage ENREG1 equals the value of external voltage is VDDEXT3 and if the supply voltage VDD is less than the nominal voltage VDDnom takes the resistance between the input and the output of the voltage regulator REG1 until the supply voltage VDD equal to the nominal voltage VDDnom. Possibly the resistance drops to zero.
- the nominal Voltage VDDnom is a constant voltage.
- the voltage converter generates at its output
- a voltage opposite to a constant voltage the input voltage is reduced or a voltage, the product of a constant multiplier k or proportionality factor with the input voltage.
- the constant multiplier k lies between the values Zero and one.
- the comparator generates at its output a voltage, the equal to the operating voltage, which at its operating voltage input is present when the non-inverting Input of the comparator voltage applied greater than the on its voltage applied to its inverting input. Otherwise it generates at its output a voltage with the Value zero.
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- Engineering & Computer Science (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)
Abstract
Description
- Figur 1
- zeigt eine erste Ausführungsform einer Schaltung zur Spannungsversorgung gemäß dem Stand der Technik.
- Figur 2
- zeigt eine zweite Ausführungsform einer Schaltung zur Spannungsversorgung gemäß dem Stand der Technik.
- Figur 3
- zeigt eine mögliche Ausführungsform der erfindungsgemäßen Schaltung zur Spannungsversorgung.
- Figur 4
- zeigt den prinzipiellen Aufbau eines Spannungsreglers, wie er bei der erfindungsgemäßen Schaltung zur Spannungsversorgung Verwendung finden kann.
- IN1
- erster Versorgungsspannungseingang
- IN2
- zweiter Versorgungsspannungseingang
- IN3
- Spannungseingang
- O
- Versorgungsspannungsausgang
- 1
- erster Spannungsumsetzer
- 2
- zweiter Spannungsumsetzer
- 3
- dritter Spannungsumsetzer
- 4
- vierter Spannungsumsetzer
- 5
- Reglerschleife
- 6
- NMOS-Transistor
- 7
- NMOS-Transistor
- NGATE
- Spannung am Ausgang der Reglerschleife
- VDDEXT1
- erste externe Versorgungsspannung
- VDDEXT2
- zweite externe Versorgungsspannung
- VDDEXT3
- externe Spannung
- VDD
- Versorgungsspannung
- CMP1
- erster Komparator
- CMP2
- zweiter Komparator
- REG1
- erster Spannungsregler
- REG2
- zweiter Spannungsregler
- VREF
- Referenzspannung
- ENREG1
- Ausgangsspannung des ersten Komparators
- ENREG2
- Ausgangsspannung des zweiten Komparators
- ENREG22
- invertierte Ausgangsspannung des ersten Komparators
- INV
- Inverter
- BA
- Betriebsanschluss des Komparators
Claims (8)
- Schaltung zur Spannungsversorgung,
mit einem ersten Versorgungsspannungseingang (IN1), welcher mit einem ersten Komparator (CMP1) und einem ersten Spannungsregler (REG1) verbunden ist, wobei der erste Komparator (CMP1) den ersten Spannungsregler (REG1) steuert,
mit einem zweiten Versorgungsspannungseingang (IN2), welcher mit einem zweiten Komparator (CMP2) und einem zweiten Spannungsregler (REG2) verbunden ist, wobei der zweite Komparator (CMP2) den zweiten Spannungsregler (REG2) steuert,
mit einem Versorgungsspannungsausgang (O), welcher mit Ausgängen der beiden Spannungsregler (REG1, REG2) verbunden und auf die beiden Komparatoren (CMP1, CMP2) rückgekoppelt ist. - Schaltung nach Patentanspruch 1,
mit einem ersten Spannungsumsetzer (1), welcher zwischen den ersten Versorgungsspannungseingang (IN1) und den ersten Komparator (CMP1) geschaltet ist,
mit einem zweiten Spannungsumsetzer (2), welcher zwischen den zweiten Versorgungsspannungseingang (IN2) und den zweiten Komparator (CMP2) geschaltet ist. - Schaltung nach Patentanspruch 1 oder 2,
mit einem dritten Spannungsumsetzer (3), welcher zwischen den Versorgungsspannungsausgang (0) und den ersten Komparator (CMP1) geschaltet ist,
mit einem vierten Spannungsumsetzer (4), welcher zwischen den Versorgungsspannungsausgang (0) und den zweiten Komparator (CMP2) geschaltet ist. - Schaltung nach Patentanspruch 2 oder 3,
bei der die Spannungsumsetzer (1, 2, 3, 4) derart ausgebildet sind, dass die an ihren Eingängen anlegbare Spannung (VDDEXT1, VDDEXT2, VDD) in eine zu dieser Spannung (VDDEXT1, VDDEXT2, VDD) proportionale Spannung (k*VDDEXT1, k*VDDEXT2, k * VDD) mit einem Proportionalitätsfaktor (k) umsetzbar ist. - Schaltung nach einem der Patentansprüche 2 oder 3,
bei der die Spannungsumsetzer (1, 2, 3, 4) derart ausgebildet sind, dass die an ihren Eingängen anlegbare Spannung (VDDEXT1, VDDEXT2, VDD) in eine um einen bestimmten Wert reduzierte Spannung umsetzbar ist. - Schaltung nach einem der Patentansprüche 1 bis 5,
mit einem Spannungseingang (IN3), welcher mit Betriebsanschlüssen (BA) der Komparatoren und Steuereingängen der Spannungsregler (REG1, REG2) verbunden ist. - Schaltung nach einem der Patentansprüche 1 bis 6,
bei der der erste Spannungsregler (REG1) einen ersten N-Kanal MOS-Transistor (7) aufweist,
bei der der zweite Spannungsregler (REG2) einen zweiten N-Kanal MOS-Transistor (6) aufweist,
wobei die Steuerausgänge der beiden Transistoren (6, 7) auf die Steuereingänge der beiden Transistoren (6, 7) rückgekoppelt sind. - Verfahren zur Erzeugung einer Versorgungsspannung,
bei dem eine erste Versorgungsspannung (VDDEXT1) an einen ersten Komparator (CMP1) und einen ersten Spannungsregler (REG1) angelegt wird, wobei über den ersten Komparator (CMP1) der erste Spannungsregler (REG1) gesteuert wird,
bei dem eine zweite Versorgungsspannung (VDDEXT2) an einen zweiten Komparator (CMP2) und einem zweiten Spannungsregler (REG2) angelegt wird, wobei über den zweiten Komparator (CMP2) der zweite Spannungsregler (REG2) gesteuert wird, und bei dem an einem Versorgungsspannungsausgang (O), welcher mit Ausgängen der beiden Spannungsregler (REG1, REG2) verbunden und auf die beiden Komparatoren (CMP1, CMP2) rückgekoppelt ist, die Versorgungsspannung (VDD) anliegt.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03000815.5A EP1439443B9 (de) | 2003-01-14 | 2003-01-14 | Schaltung zur Spannungsversorgung und Verfahren zur Erzeugung einer Versorgungsspannung |
PCT/EP2004/000173 WO2004064232A2 (de) | 2003-01-14 | 2004-01-13 | Schaltung zur spannungsversorgung und verfahren zur erzeugung einer versorgungsspannung |
KR1020057012952A KR100654475B1 (ko) | 2003-01-14 | 2004-01-13 | 전압 공급 회로 및 공급 전압 발생 방법 |
US11/181,032 US7501718B2 (en) | 2003-01-14 | 2005-07-12 | Voltage supply circuit and method for generating a supply voltage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03000815.5A EP1439443B9 (de) | 2003-01-14 | 2003-01-14 | Schaltung zur Spannungsversorgung und Verfahren zur Erzeugung einer Versorgungsspannung |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1439443A1 true EP1439443A1 (de) | 2004-07-21 |
EP1439443B1 EP1439443B1 (de) | 2015-09-09 |
EP1439443B9 EP1439443B9 (de) | 2016-01-20 |
Family
ID=32524131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03000815.5A Expired - Lifetime EP1439443B9 (de) | 2003-01-14 | 2003-01-14 | Schaltung zur Spannungsversorgung und Verfahren zur Erzeugung einer Versorgungsspannung |
Country Status (4)
Country | Link |
---|---|
US (1) | US7501718B2 (de) |
EP (1) | EP1439443B9 (de) |
KR (1) | KR100654475B1 (de) |
WO (1) | WO2004064232A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7486057B2 (en) * | 2005-01-24 | 2009-02-03 | Honeywell International Inc. | Electrical regulator health monitor circuit systems and methods |
US8836410B2 (en) * | 2007-08-20 | 2014-09-16 | Hynix Semiconductor Inc. | Internal voltage compensation circuit |
US8866341B2 (en) * | 2011-01-10 | 2014-10-21 | Infineon Technologies Ag | Voltage regulator |
EP3273320B1 (de) | 2016-07-19 | 2019-09-18 | NXP USA, Inc. | Abstimmbare spannungsregelschaltung |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2927264B1 (de) * | 1979-07-05 | 1980-10-02 | Siemens Ag | Schaltungsanordnung mit mindestens einer durchzuschaltenden Versorgungsspannungsquelle |
US6194953B1 (en) * | 1997-04-18 | 2001-02-27 | Infineon Technologies Ag | Circuit configuration for generating an internal supply voltage |
US6456086B1 (en) * | 1998-04-01 | 2002-09-24 | Siemens Aktiengesellschaft | Voltage monitoring device for monitoring two different supply voltages received by an electronic component |
Family Cites Families (4)
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 |
US4868417A (en) * | 1988-08-23 | 1989-09-19 | Motorola, Inc. | Complementary voltage comparator |
JP3696470B2 (ja) * | 2000-02-22 | 2005-09-21 | 富士通株式会社 | Dc−dc変換回路、電源選択回路、および機器装置 |
WO2003034383A2 (en) * | 2001-10-19 | 2003-04-24 | Clare Micronix Integrated Systems, Inc. | Drive circuit for adaptive control of precharge current and method therefor |
-
2003
- 2003-01-14 EP EP03000815.5A patent/EP1439443B9/de not_active Expired - Lifetime
-
2004
- 2004-01-13 WO PCT/EP2004/000173 patent/WO2004064232A2/de active Application Filing
- 2004-01-13 KR KR1020057012952A patent/KR100654475B1/ko not_active IP Right Cessation
-
2005
- 2005-07-12 US US11/181,032 patent/US7501718B2/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2927264B1 (de) * | 1979-07-05 | 1980-10-02 | Siemens Ag | Schaltungsanordnung mit mindestens einer durchzuschaltenden Versorgungsspannungsquelle |
US6194953B1 (en) * | 1997-04-18 | 2001-02-27 | Infineon Technologies Ag | Circuit configuration for generating an internal supply voltage |
US6456086B1 (en) * | 1998-04-01 | 2002-09-24 | Siemens Aktiengesellschaft | Voltage monitoring device for monitoring two different supply voltages received by an electronic component |
Non-Patent Citations (1)
Title |
---|
"EINFACHE STABILISIERUNGSSCHALTUNG", RADIO FERNSEHEN ELEKTRONIK, VEB VERLAG TECHNIK. BERLIN, DE, vol. 46, no. 1, 1997, pages 70, XP000685789, ISSN: 1436-1574 * |
Also Published As
Publication number | Publication date |
---|---|
KR100654475B1 (ko) | 2006-12-05 |
WO2004064232A2 (de) | 2004-07-29 |
EP1439443B9 (de) | 2016-01-20 |
EP1439443B1 (de) | 2015-09-09 |
US7501718B2 (en) | 2009-03-10 |
WO2004064232A3 (de) | 2004-09-16 |
US20060001321A1 (en) | 2006-01-05 |
KR20050094844A (ko) | 2005-09-28 |
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