Search results for "Disturbance voltage"

showing 2 items of 2 documents

Estimation of power supply harmonic impedance using a controlled voltage disturbance

2002

A novel method for power system impedance estimation is presented. The method employs a power converter to inject a voltage transient onto the supply system. The impedance is estimated through correlation of the measured voltage and current transients. Simulations and experimental results demonstrate the effectiveness of this measurement technique.

High impedanceMaterials scienceSwitched-mode power supplyElectronic engineeringImpedance bridgingOutput impedanceHardware_PERFORMANCEANDRELIABILITYVoltage sourceVoltage optimisationDisturbance voltageNegative impedance converter2001 IEEE 32nd Annual Power Electronics Specialists Conference (IEEE Cat. No.01CH37230)
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A battery-based, low-noise voltage source.

2010

A highly stable, low-noise voltage source was designed to improve the stability of the electrode bias voltages of a Penning trap. To avoid excess noise and ground loops, the voltage source is completely independent of the public electric network and uses a 12 V car battery to generate output voltages of +/-15 and +/-5 V. First, the dc supply voltage is converted into ac-voltage and gets amplified. Afterwards, the signal is rectified, filtered, and regulated to the desired output value. Each channel can deliver up to 1.5 A. The current as well as the battery voltage and the output voltages can be read out via a universal serial bus (USB) connection for monitoring purposes. With the presented…

PhysicsLow-dropout regulatorbusiness.industryDropout voltagePre-chargeVoltage dividerElectrical engineeringVoltage regulatorVoltage sourcebusinessInstrumentationLow voltageDisturbance voltageThe Review of scientific instruments
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