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公开(公告)号:DE10344354B4
公开(公告)日:2006-11-02
申请号:DE10344354
申请日:2003-09-24
Applicant: INFINEON TECHNOLOGIES AG
Inventor: DIAS VICTOR
Abstract: The invention provides a clocked analog/digital converter for successive approximation which is designed using a jointly used amplifier and a dynamic range expansion facility by means of a special design for the comparison circuit in the first converter stage. The comparison circuits in the analog/digital converter allow decisions to be made for the further signal processing previously in a preceding time period. Two respective generator circuits in successive converter stages share one amplifier. This reduces the amount of space taken up and current drawn, increases the clock rate and simplifies signal processing for signals with high levels.
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公开(公告)号:DE10331572B4
公开(公告)日:2005-06-09
申请号:DE10331572
申请日:2003-07-11
Applicant: INFINEON TECHNOLOGIES AG
Inventor: DIAS VICTOR , FENK JOSEF
Abstract: The invention discloses a sigma-delta converter arrangement with a forward path including an amplifier and a quantizer with a clock input, and a feedback path with a D/A converter. The amplifier is coupled to an integrator which is in the form of a resonator with a tunable frequency and is actuated by a frequency synthesizer that also prescribes the clock rate of the quantizer. The synchronization between the quantizer and resonator results in highly accurate matching given inexpensive integratabiliy, which means that the sigma-delta converter is suitable for use in mobile radios, for example.
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公开(公告)号:DE102006007479B4
公开(公告)日:2017-08-10
申请号:DE102006007479
申请日:2006-02-17
Applicant: INFINEON TECHNOLOGIES AG
Inventor: BURGER RICCIO ROBERTA , DIAS VICTOR
Abstract: Shunt-Regler (300; 400) zum Herunterregeln eines Eingangspotentials (VIN) auf ein Ausgangspotential (VDDSHUNT), mit – einem Eingangsanschluss (IN) zum Anlegen des Eingangspotentials (VIN), – einem Ausgangsanschluss (OUT; OUT1, OUT2) zum Abgreifen des Ausgangspotentials (VDDSHUNT), und – einem zwischen den Eingangsanschluss (IN) und den Ausgangsanschluss (OUT; OUT1, OUT2) geschalteten Spannungsabfall-Schaltkreis (RL, Ta, ..., TN; RL1, RL2, T1, T2, T3), über welchem beim Betrieb des Shunt-Reglers (300; 400) die Differenzspannung zwischen dem Eingangspotential (VIN) und dem Ausgangspotential (VDDSHUNT) abfällt, wobei der durch den Spannungsabfall-Schaltkreis (RL, Ta, ..., TN; RL1, RL2, T1, T2, T3) fließende Strom (IL) oder dessen Grenzwert einstellbar sind und der Spannungsabfall-Schaltkreis (RL, Ta, ..., TN; RL1, RL2, T1, T2, T3) mindestens zwei Transistoren (Ta, ..., TN; T1, T2, T3) aufweist, die mit ihrer Laststrecke in den Strompfad (IL) des Spannungsabfall-Schaltkreises (RL, Ta, ..., TN; RL1, RL2, T1, T2, T3) geschaltet sind, – einem Spannungsteiler (Ra, ..., RN+1; R1, R2, R3), welcher das Eingangspotential (VIN) in mindestens zwei Teilpotentiale (VCa, ..., VCN; VC1, VC2) unterteilt, und – einer Steuereinheit (301a, ..., 301N) zum Einstellen des durch den Spannungsabfall-Schaltkreis (RL, Ta, ..., TN; RL1, RL2, T1, T2, T3) fließenden Stroms (IL) oder dessen Grenzwerts, wobei die mindestens zwei Transistoren (Ta, ..., TN; T1, T2, T3) über ihre Steueranschlüsse von der Steuereinheit (301a, ..., 301N) angesteuert werden und die Steuereinheit (301a, ..., 301N) derart ausgeführt ist, dass sie die mindestens zwei Teilpotentiale (VCa, ..., VCN; VC1, VC2) mit jeweils einem Schwellwert vergleicht und in Abhängigkeit von den Schwellwertvergleichen die mindestens zwei Transistoren (Ta, ..., TN; T1, T2, T3) ansteuert.
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公开(公告)号:DE10327283A1
公开(公告)日:2005-01-20
申请号:DE10327283
申请日:2003-06-17
Applicant: INFINEON TECHNOLOGIES AG
Inventor: HAGN MARCUS , STROEBLE OLAF , DIAS VICTOR
Abstract: In the method, each approximation step contains weighing process for analog voltage signal in lower and top value of preset voltage interval. In weighting process of second approximation step two different reference voltages are used, dividing preset voltage interval into three partial voltage intervals. To each partial interval is allocated value and determined during weighting process, in which partial interval analog voltage signal is present. Determined partial interval, with allocated partial value, is used for forming digital value. Processing of weighting process of first approximation step is specified. Independent claims are included for A/D converter.
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公开(公告)号:DE102006007477B4
公开(公告)日:2012-02-16
申请号:DE102006007477
申请日:2006-02-17
Applicant: INFINEON TECHNOLOGIES AG
Inventor: GUNZELMANN BERTRAM , DIAS VICTOR , LEYK ANDREAS , CHRIST VOLKER
Abstract: Signalverarbeitungseinrichtung, mit: einem Verzögerungskompensator (401) zum Kompensieren einer Verzögerung um ein vorbestimmtes Zeitintervall, wobei der Verzögerungskompensator (401) ausgebildet ist, um unter Verwendung eines Eingangsabtastwertes einen kompensierten Abtastwert derart zu erzeugen, dass eine Differenz zwischen dem Eingangsabtastwert und einem bei einer Verzögerung des kompensierten Abtastwertes um das vorbestimmte Zeitintervall resultierenden verzögerten Abtastwert geringer als eine Differenz zwischen dem kompensierten Abtastwert und dem verzögerten Abtastwert ist.
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公开(公告)号:DE102006007477A1
公开(公告)日:2007-08-30
申请号:DE102006007477
申请日:2006-02-17
Applicant: INFINEON TECHNOLOGIES AG
Inventor: GUNZELMANN BERTRAM , DIAS VICTOR , LEYK ANDREAS , CHRIST VOLKER
IPC: H03M1/66
Abstract: The digital-to-analog converter has a reference value divisor arrangement (102) for producing a divided reference value from an electrical reference value, where the reference value divisor arrangement has a tap (105) for measuring the divided reference value. A circuit arrangement is formed, in order to make an electrical connection between the tap of the reference value divisor arrangement and one output (113) of the digital analog converter, if the divided reference value corresponds to a value of a digital signal. Another circuit arrangement is formed, in order to make an electrical connection between the tap of the reference value divisor arrangement and another output (123) of the digital analog converter, if the divided reference value corresponds to a value of a another digital signal. The former switch arrangement and the latter switch arrangement are formed, in order to make the electrical connections independently.
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公开(公告)号:DE102004025577B4
公开(公告)日:2010-05-06
申请号:DE102004025577
申请日:2004-05-25
Applicant: INFINEON TECHNOLOGIES AG
Inventor: DIAS VICTOR
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公开(公告)号:DE102005015390A1
公开(公告)日:2006-10-12
申请号:DE102005015390
申请日:2005-04-04
Applicant: INFINEON TECHNOLOGIES AG
Inventor: DIAS VICTOR
Abstract: An input network (5) assigns headings based on whether input signals (V1+,V1-) exceed quantization thresholds or not. A combiner (9) assigns the headings to comparators (COMP1-COMP8) based on a control signal (10). The comparators generate quantized signals at the outputs. An independent claim is also included for a sigma delta encoder.
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公开(公告)号:DE10327283B4
公开(公告)日:2006-09-21
申请号:DE10327283
申请日:2003-06-17
Applicant: INFINEON TECHNOLOGIES AG
Inventor: HAGN MARCUS , STROEBLE OLAF , DIAS VICTOR
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公开(公告)号:DE102004025577A1
公开(公告)日:2005-12-22
申请号:DE102004025577
申请日:2004-05-25
Applicant: INFINEON TECHNOLOGIES AG
Inventor: DIAS VICTOR
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