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What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

Basically, a regulated DC power supply (referred as DC power supply) is an electrical device that provides a constant output voltage; however, sometimes it cannot remain stable. There might be some factors that affect the stability of the DC power supply, and Part 1 previously focused on one of them: how you connect cables on a system. Here in Part 2, we look at one other important factor that nee...

What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

How to Select a Right DC Power Supply Part 2: Key Considerations

Welcome back to Part 2 of this series! Part 1 is all about the functions and characteristics of DC power supplies. In Part 2 here, we will take a look at the considerations when selecting a right power supply. 1. Key Considerations There are too many considerations when selecting a DC power supply. This makes it hard to select a right power supply without any understanding, whic...

What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

Voltage Interruption Waveforms Provided by PCR-LE Series

In an AC circuit, power supply interruption can be mainly divided into two types: it occurs with low impedance or with high impedance. The power supply interruption with low impedance is a short-circuit interruption. A short circuit is an unintended path to flow a current with typically very low impedance. Whereas, the power supply interruption with high impedance is an open-circuit interruption....

What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

How to Reduce Power Supply Noise

In a test system, AC power supply is one of the significant components that can create test sequences for output and supply source to DUT. However, the power supply may cause a noise issue during test. There is some noise interference such as conducted noise and magnetic field that may enter into the test system. This article focuses on a noise terminal voltage at an input and output terminal whi...

What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

DC Electronic Load – Part 6: Application and Example (2)

Continuing from the previous white paper, here are three more effective applications and examples of electronic loads. 6-1. Applying the Load to a Motor Figure 6-1 shows a block diagram illustrating an example of the DC motor test system. In this system, the test motor (DUT) is driven by the DC power supply. The coupling is connected to the DUT and another motor in order to app...

What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

Single-phase Three-wire Output from One AC Power Supply

A single-phase three-wire output can be achieved usually by connecting two AC power supplies. However, if you need to output from one AC power supply and the required current through DUT is small, you can output it by configuring the following circuit. 1. Single-phase Three-wire System In the figure below, R1=R2. Appropriate resistance for power supply should be applied on R1 an...

What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

What It Takes to Keep Regulated DC Power Supply Stable Part 1: Connecting Cable

A regulated DC power supply (referred as DC power supply) is an electrical device to convert AC into a constant DC. Its function is to maintain a constant output voltage, however, unfortunately even if you use an intelligent DC power supply, improper wiring can mess up a whole system operation or performance. In this white paper, we explain the best practices for connecting a power cable and load...

Switching Function Improvement in PLZ5W Series

PLZ5W Series features a switching current function to repetitively fluctuate between two current levels, and this function has been improved as compared with the previous model of PLZ4W Series for the following characteristics: 1) Switching speed 2) Switching waveform quality * In PLZ4W Series, the switching speed tends to become slow when connecting a resistance load. Here you will find th...

What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

When to use the LPF Setting TOS9300 Series

The TOS9300 series of electrical safety testers is a robust all-in-one solution. When performing AC Hipot, DC Hipot and Insulation Resistance tests there are setting options which allow the user to optimise testing as necessary for all applications. In certain situations whe...

What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

Using Bipolar Power Supply PBZ Series as AC Electronic Load

In this white paper, we are going to share the techniques to make the system that our bipolar power supply PBZ Series acts as a constant resistance load. 1. System Details First, we are describing the system. See Figure 1 below; two units of ...

What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

Output On/Off Behaviour of PBZ Series

For PBZ Series, a magnetic relay is used to turn the output on/off. The relay is off to turn the output off; when the output is off, the output is in the high impedance state. In addition, if the output-on/off is controlled by an external signal input, the embed...

What It Takes to Keep Regulated DC Power Supply Stable Part 2: Load Conditions

Precautions When Operating AC Power Supply ‘PCR-LE Series’ in DC Mode

PCR-LE/LE2 Series can produce a DC output that enables you to test DC-powered devices such as DC-input converters. This article introduces the important precautions and useful functions to effectively operate PCR-LE/LE2 Series in DC mode. 1. Circuit Model See Figure 1 for the test circuit model with PCR-LE. It illustrates the DC-input converter/inverter that has a capacitor-i...

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