unit-5
... This triangular-wave oscillator makes use of a comparator and integrator to actually produce both a triangle-wave and squarewave. Output levels are set by the ratio of R2 and R3 times the maximum output of the comparator. The frequency of output can be determined by the formula fr = 1/4R1C(R2/R3) ...
... This triangular-wave oscillator makes use of a comparator and integrator to actually produce both a triangle-wave and squarewave. Output levels are set by the ratio of R2 and R3 times the maximum output of the comparator. The frequency of output can be determined by the formula fr = 1/4R1C(R2/R3) ...
Self-Calibration and Digital Trimming of Successive Approximation
... correcting static mismatches in Capacitive Digital-to-Analog Converter (CDAC) used in Successive Approximation Register Analog to Digital Converters (SAR-ADCs) is proposed. The algorithm uses a dynamic error correction (DEC) capacitor to cancel the static errors occurring in each capacitor of the ar ...
... correcting static mismatches in Capacitive Digital-to-Analog Converter (CDAC) used in Successive Approximation Register Analog to Digital Converters (SAR-ADCs) is proposed. The algorithm uses a dynamic error correction (DEC) capacitor to cancel the static errors occurring in each capacitor of the ar ...
Item # S-200, D1086 Generator Field Control D1086
... generator. Recommended for geared machines with series field windings up to 350 FPM. The D1086 accepts 0-10 VDC as a reference to achieve 1-180 VDC output. The input signal can either be provided by an external source or from the on-board 15 VDC power supply. Provisions are made for externally selec ...
... generator. Recommended for geared machines with series field windings up to 350 FPM. The D1086 accepts 0-10 VDC as a reference to achieve 1-180 VDC output. The input signal can either be provided by an external source or from the on-board 15 VDC power supply. Provisions are made for externally selec ...
FILTERING In power supplies, capacitors are used to smooth (filter
... DC value and an AC portion that is called ripple voltage. Filter capacitors reduce the amount of ripple voltage to a level that is acceptable. It should be noted that resistors and inductors can be combined with the capacitors to form filter networks. Here we will concentrate on capacitive filters o ...
... DC value and an AC portion that is called ripple voltage. Filter capacitors reduce the amount of ripple voltage to a level that is acceptable. It should be noted that resistors and inductors can be combined with the capacitors to form filter networks. Here we will concentrate on capacitive filters o ...
S R 1 2
... A simple first order RC circuit can approximate an integrator or a differentiator, which, respectively, are circuits which have as an output the time integral or time differential of an input signal. 1. Consider the circuit: ...
... A simple first order RC circuit can approximate an integrator or a differentiator, which, respectively, are circuits which have as an output the time integral or time differential of an input signal. 1. Consider the circuit: ...
Voltage-Controlled Oscillator
... iii-1) Obtain an expression for Vmonitor as a function of time when the switch is OFF. Hint: It will help to sketch the flow of current (magnitude and direction) across the resistors and capacitor. iii-2) Obtain an expression for Vmonitor as a function of time when the switch is ON. iii-3) Obtain a ...
... iii-1) Obtain an expression for Vmonitor as a function of time when the switch is OFF. Hint: It will help to sketch the flow of current (magnitude and direction) across the resistors and capacitor. iii-2) Obtain an expression for Vmonitor as a function of time when the switch is ON. iii-3) Obtain a ...
Test Procedure for the NCV8871SEPGEVB Evaluation Board
... load current as well as VIN, and will be less than 6 V when operating below rated output current. 4. Optionally for external clock synchronization, connect a pulse source between EN/SYNC and GND. The high state level should be within the 2 to 5 V range, and the low state level within the 0.3 V to 0. ...
... load current as well as VIN, and will be less than 6 V when operating below rated output current. 4. Optionally for external clock synchronization, connect a pulse source between EN/SYNC and GND. The high state level should be within the 2 to 5 V range, and the low state level within the 0.3 V to 0. ...
Test Procedure for the NCV898031SEPGEVB Evaluation Board
... 1. Connect a DC input voltage, within the 6 V to 40 V range, between VIN and GND. 2. Connect a DC enable voltage, within the 2.0 V to 5.0 V range, between EN/SYNC and GND. 3. The demo board feedback components were selected for continuous operation at rated 7 V/1.22 A output power at a minimum input ...
... 1. Connect a DC input voltage, within the 6 V to 40 V range, between VIN and GND. 2. Connect a DC enable voltage, within the 2.0 V to 5.0 V range, between EN/SYNC and GND. 3. The demo board feedback components were selected for continuous operation at rated 7 V/1.22 A output power at a minimum input ...
Hi, I have connected the circuit as shown above. Opamp is used as
... Hi, I have connected the circuit as shown above. Opamp is used as a comparator The positive terminal of opamp is given fixed voltage of 2.5 V. The negative terminal is given a voltage divider biasing. When IR ray is incident on the sensor, its resistance is less than that of the resistor. Hence volt ...
... Hi, I have connected the circuit as shown above. Opamp is used as a comparator The positive terminal of opamp is given fixed voltage of 2.5 V. The negative terminal is given a voltage divider biasing. When IR ray is incident on the sensor, its resistance is less than that of the resistor. Hence volt ...
An Application of the Inverting Integrator
... Note that this is exactly the form of the output of an op-amp integrator! We can use the inverting integrator to determine the timeaveraged value of some input signal v (t) over some arbitrary time T. For example, say we wish to determine the time-averaged value of the input signal: vin(t) ...
... Note that this is exactly the form of the output of an op-amp integrator! We can use the inverting integrator to determine the timeaveraged value of some input signal v (t) over some arbitrary time T. For example, say we wish to determine the time-averaged value of the input signal: vin(t) ...
Digital Electronics 13.4b
... 1. Design the details of a 4-bit Successive Approximation Converter according to the block diagram given in class (i.e. design the DAC, SAR, control logic, and latch). 2. A dual slope ADC uses a 16-bit counter and a 4MHz clock rate. The maximum input voltage is +10V. The maximum integrator output vo ...
... 1. Design the details of a 4-bit Successive Approximation Converter according to the block diagram given in class (i.e. design the DAC, SAR, control logic, and latch). 2. A dual slope ADC uses a 16-bit counter and a 4MHz clock rate. The maximum input voltage is +10V. The maximum integrator output vo ...
Integrating ADC
An integrating ADC is a type of analog-to-digital converter that converts an unknown input voltage into a digital representation through the use of an integrator. In its most basic implementation, the unknown input voltage is applied to the input of the integrator and allowed to ramp for a fixed time period (the run-up period). Then a known reference voltage of opposite polarity is applied to the integrator and is allowed to ramp until the integrator output returns to zero (the run-down period). The input voltage is computed as a function of the reference voltage, the constant run-up time period, and the measured run-down time period. The run-down time measurement is usually made in units of the converter's clock, so longer integration times allow for higher resolutions. Likewise, the speed of the converter can be improved by sacrificing resolution.Converters of this type can achieve high resolution, but often do so at the expense of speed. For this reason, these converters are not found in audio or signal processing applications. Their use is typically limited to digital voltmeters and other instruments requiring highly accurate measurements.