Unit Test 3 – Industrial Electronics – Question Bank
... 1. What is meant by a dc chopper ? A dc chopper is a high speed static switch used to obtain variable dc voltage from a constant dc voltage. It is also known as dc to dc converter. A chopper can be consider as dc equivalent to an dc transformer with continuously variable turns ratio. Like a transfor ...
... 1. What is meant by a dc chopper ? A dc chopper is a high speed static switch used to obtain variable dc voltage from a constant dc voltage. It is also known as dc to dc converter. A chopper can be consider as dc equivalent to an dc transformer with continuously variable turns ratio. Like a transfor ...
EE 321 Exam 1
... • Figure (a). No current flows into v+ , so there is no voltage drop across the 10 kΩ resistor, and v+ = VOS . The offset voltage VOS is amplified by the gain of the non-inverting amplifier, so vo = 50VOS = 50 mV. • Figure (b). IB+ will flow through the 10 kΩ resistor, so v+ = -10 nA × 10 kΩ = -0.1 ...
... • Figure (a). No current flows into v+ , so there is no voltage drop across the 10 kΩ resistor, and v+ = VOS . The offset voltage VOS is amplified by the gain of the non-inverting amplifier, so vo = 50VOS = 50 mV. • Figure (b). IB+ will flow through the 10 kΩ resistor, so v+ = -10 nA × 10 kΩ = -0.1 ...
The HV 2/4 high-voltage power supply module
... supply, e.g. is always < 4kV for HV2/4PF+ even if (B + A) would mathematically yield a higher value. For the PF- version the minimum value of B’ is 0, i.e. the polarity of the output cannot change if (B - A) would mathematically yield a negative value. This option allows keeping the potential differ ...
... supply, e.g. is always < 4kV for HV2/4PF+ even if (B + A) would mathematically yield a higher value. For the PF- version the minimum value of B’ is 0, i.e. the polarity of the output cannot change if (B - A) would mathematically yield a negative value. This option allows keeping the potential differ ...
Data Sheet-AR-2330D
... VAC ±10V. Output voltage can be changed from 240V to either 220V or 230V via an internal jumper. The AR-2330D can handle loads totaling up to 30 amps as long as the input voltage is above the selected output voltage. For voltages below that level, its capacity must be derated at approximately .15 am ...
... VAC ±10V. Output voltage can be changed from 240V to either 220V or 230V via an internal jumper. The AR-2330D can handle loads totaling up to 30 amps as long as the input voltage is above the selected output voltage. For voltages below that level, its capacity must be derated at approximately .15 am ...
DN266 - LT1880 SOT-23 Superbeta Op Amp Saves Board Space in Precision Applications
... through the RTD and the total 1.25k of resistance set by R1 and R2. Lower precision components R4 and C1 ensure circuit stability, which would otherwise be excessively dependant on the cable characteristics. R5 is also noncritical and is included to improve ESD immunity and decouple any cable capaci ...
... through the RTD and the total 1.25k of resistance set by R1 and R2. Lower precision components R4 and C1 ensure circuit stability, which would otherwise be excessively dependant on the cable characteristics. R5 is also noncritical and is included to improve ESD immunity and decouple any cable capaci ...
Comparators - Portal UniMAP
... The comparator is an op-amp circuit that compares two input voltages and produces an output indicating the relationship between them. The inputs can be two signals (such as two sine waves) or a signal and a fixed dc reference voltage. Comparators are most commonly used in digital applications. Digit ...
... The comparator is an op-amp circuit that compares two input voltages and produces an output indicating the relationship between them. The inputs can be two signals (such as two sine waves) or a signal and a fixed dc reference voltage. Comparators are most commonly used in digital applications. Digit ...
Exp-10 - WordPress.com
... Basically, 555 timers is a highly stable circuit capable of functioning as an accurate time-delay generator and as a free running multivibrator. The 555 timer is highly stable device for generating accurate time delay or oscillation. The device consists of two comparators that drive the set (S) and ...
... Basically, 555 timers is a highly stable circuit capable of functioning as an accurate time-delay generator and as a free running multivibrator. The 555 timer is highly stable device for generating accurate time delay or oscillation. The device consists of two comparators that drive the set (S) and ...
HF2TA Leaflet - Zurich Instruments
... run an external sensor or detector. The maximum output power is 100 mW. Single Connector to HF2 Instruments The HF2TA fits to any HF2 Instrument with its single connector, providing both power supply and remote control. The HF2TA is automatically detected by the Instrument when it is connected and a ...
... run an external sensor or detector. The maximum output power is 100 mW. Single Connector to HF2 Instruments The HF2TA fits to any HF2 Instrument with its single connector, providing both power supply and remote control. The HF2TA is automatically detected by the Instrument when it is connected and a ...
UTP Cable Connectors
... Ro = 0 (output impedance is zero) Bandwidth = (no frequency response limitations) and no phase shift ...
... Ro = 0 (output impedance is zero) Bandwidth = (no frequency response limitations) and no phase shift ...
Lecture 9: Limiting and Clamping Diode Circuits. Voltage Doubler
... Clamped Capacitor Circuits An idealized circuit of this type in shown below: ...
... Clamped Capacitor Circuits An idealized circuit of this type in shown below: ...
Datasheet - DE-SWADJ
... The DE-SWADJ is designed to be the easiest possible way to utilize the benefits of switchmode power when you need an unusual or easily changed voltage. The DE-SWADJ family is pin-compatible with the common 78XX family of linear voltage regulators, and can step down to 1.25v to 13v with no external c ...
... The DE-SWADJ is designed to be the easiest possible way to utilize the benefits of switchmode power when you need an unusual or easily changed voltage. The DE-SWADJ family is pin-compatible with the common 78XX family of linear voltage regulators, and can step down to 1.25v to 13v with no external c ...
Full Text PDF - J
... as a function of input VLL . The reference current IREF was set at 10 nA. The circuit operated successfully at the VLL of 0.6 V or higher. The waveforms of VLL (SC converter output) and VOU T (series regulator output) are plotted in Fig. 3-(a), with capacitances C1 = C2 = C3 = C4 = = 50 pF, IREF = 1 ...
... as a function of input VLL . The reference current IREF was set at 10 nA. The circuit operated successfully at the VLL of 0.6 V or higher. The waveforms of VLL (SC converter output) and VOU T (series regulator output) are plotted in Fig. 3-(a), with capacitances C1 = C2 = C3 = C4 = = 50 pF, IREF = 1 ...
... last column is the value of the resistor (R4) required for classification in the circuit described by this application note. Signature detection: The upstream PSE equipment detects the PD by injecting two different voltages between 2.8 and 10 Vdc into the PD input terminals. If the detected impedanc ...
Installation Instructions
... 6. When the use of stand-by batteries is desired, they must be lead acid or gel type. Connect battery to the terminals marked [+ BAT ---] (battery leads included). Use two (2) 12VDC batteries connected in series for 24VDC operation. Note: When batteries are not used, a loss of AC will result ...
... 6. When the use of stand-by batteries is desired, they must be lead acid or gel type. Connect battery to the terminals marked [+ BAT ---] (battery leads included). Use two (2) 12VDC batteries connected in series for 24VDC operation. Note: When batteries are not used, a loss of AC will result ...
A. Agnes, E. Bonizzoni, P. Malcovati, F. Maloberti: "A 9.4
... all the quadratic combination of the 3 contributions on the 2 channels gives our accuracy that is equal to 194µV. Moreover, since RD is 125kΩ, the discharge current in the reference branch is 1.2µA, which flows with 50% duty cycle. ...
... all the quadratic combination of the 3 contributions on the 2 channels gives our accuracy that is equal to 194µV. Moreover, since RD is 125kΩ, the discharge current in the reference branch is 1.2µA, which flows with 50% duty cycle. ...
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.