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

Posted on: June 23rd, 2021 by Doug Lovell
What It Takes to Keep Regulated DC Power Supply Stable Part 1: Connecting Cable 23/06/2021
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

Posted on: June 23rd, 2021 by Doug Lovell
23/06/2021
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...

When to use the LPF Setting TOS9300 Series

Posted on: June 23rd, 2021 by Doug Lovell
When to use the LPF Setting TOS9300 Series 23/06/2021
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...

Using Bipolar Power Supply PBZ Series as AC Electronic Load

Posted on: June 23rd, 2021 by Doug Lovell
Using Bipolar Power Supply PBZ Series as AC Electronic Load 23/06/2021
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 ...

Output On/Off Behaviour of PBZ Series

Posted on: June 23rd, 2021 by Doug Lovell
Output On/Off Behaviour of PBZ Series 23/06/2021
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...

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

Posted on: June 23rd, 2021 by Doug Lovell
Precautions When Operating AC Power Supply ‘PCR-LE Series’ in DC Mode 23/06/2021
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...

Output Connection Methods with Parallel Control

Posted on: June 23rd, 2021 by Doug Lovell
Output Connection Methods with Parallel Control 23/06/2021
Parallel operation is very useful to expand an output capacity; especially master-slave parallel operation allows you to control an entire system by one master unit. When making the master-slave connection such as signal wiring and load connection, you may find some issues with load connection. Improper connection may cause oscillation so that our user’s manual describes how to connect the load...

Operation Tutorial to Perform Simulated CC Operation in PCR-LE Series

Posted on: June 23rd, 2021 by Doug Lovell
Operation Tutorial to Perform Simulated CC Operation in PCR-LE Series 23/06/2021
1. Overview In PCR-LE Series, simulated CC operation can be achieved by setting the current limit in AC mode. This method is based on its internal system as the ammeter monitors the output current and the arithmetic circuit controls the output voltage. The functions and characteristics of thi...

PLZ Series Easy Way to Expand Electronic Load Capacity in CV Mode

Posted on: June 23rd, 2021 by Doug Lovell
PLZ Series Easy Way to Expand Electronic Load Capacity in CV Mode 23/06/2021
PLZ Series Easy Way to Expand Electronic Load Capacity in CV Mode Our electronic load PLZ Series has a well-known feature that a master/slave parallel operation expands an output capacity in the same model, controlled slave units by a master unit (except for PLZ-4WL). In this article, we are going to further explain how to increase the capacity by parallel connection with d...

Using Electronic Load to Battery Charger Testing

Posted on: June 22nd, 2021 by Doug Lovell
Using Electronic Load to Battery Charger Testing 22/06/2021
Using Electronic Load to Battery Charger Testing A battery charger is a device that can recharge a secondary cell or rechargeable battery. Every battery charger being used requires the testing and such testing system must include something to simulate a battery. An electronic load can provide the best solution for the battery charger testing to simulate the actual behaviour o...

Blown Fuse Testing Precautions When Using Electronic Load

Posted on: June 22nd, 2021 by Doug Lovell
Blown Fuse Testing Precautions When Using Electronic Load 22/06/2021
Blown Fuse Testing Precautions When Using Electronic Load This article will address some precautions on the blown fuse testing such as the unit testing or cable and fuse testing (see Figure 1) and fuse component testing. 1. Test System A DC power supply, cable, fuse and electronic load are connected as shown in Figure 1. 1) Prepare a DC power supply whose current and voltag...

How to Measure Output Impedance of Power Supply with Bipolar Power Supply PBZ Series

Posted on: June 22nd, 2021 by Doug Lovell
How to Measure Output Impedance of Power Supply  with Bipolar Power Supply PBZ Series 22/06/2021
How to Measure Output Impedance of Power Supply with Bipolar Power Supply PBZ SeriesPBZ Series is a bipolar power supply that can be also operated in quadrant 2 to sink the current. This function enables you to measures an output impedance of ...