• Remote Sensing is Important for Your Power Supply

    Do you have issues where the voltage at your load is lower than what you’ve set at your power supply? Do you always need to guess the amount of voltage to increase (to compensate for lead losses) just to get the...
    titbin
    last modified by titbin
  • What is a floating power supply output?

    What is a floating power supply output? First let me tell you that a floating power supply output is NOT what is shown below in Figure 1 (haha).  Now some background: "earth ground" is the voltage potentia...
    StevenLee
    created by StevenLee
  • Get ±25 volts from a DC bench power supply and easily set up symmetrical voltages

    Typically, power supply users require only positive voltage for their testing as opposed to negative voltage. However, there are instances where you may need negative voltage from a power supply. Driving devices such ...
    StevenLee
    last modified by StevenLee
  • DC power supply output impedance characteristics

    In a previous posting; “How Does a Power Supply regulate It’s Output Voltage and Current?” I showed how feedback loops are used to control a DC power supply’s output voltage and curre...
    StevenLee
    last modified by StevenLee
  • The difference between constant current and current limit in DC power supplies

    Constant Voltage/Constant Current (CC/CV) Power Supplies In most of our discussions in “Watt’s Up?” on current limiting we have primarily talked about power supplies as having a constant current (CC)...
    StevenLee
    last modified by StevenLee
  • Transducers for making Temperature Measurements with a DMM

    Four types of transducers are commonly used for making temperature measurements with a DMM: resistance temperature detectors (RTDs), thermistors, IC sensors and thermocouples. Each type has advantages and disadvantage...
    bernard ang
    last modified by bernard ang
  • What can cause a power supply output voltage to exceed its setting?

    Today I want to talk about what causes an overvoltage condition. An overvoltage condition is a condition that causes the power supply output voltage to exceed its setting. Let’s take a look at some of the things...
    StevenLee
    last modified by StevenLee
  • Waveform modulation with your function generator

    Basic function generators generally can generate basic periodic waveforms such as sine wave, square wave, triangle wave, ramp wave, pulse wave and so on. Modern function generators nowadays have a very important featu...
    bernard ang
    created by bernard ang
  • How to make simultaneous measurements with a digital multimeter

    Traditionally, digital multimeters (DMMs) have been single-measurement instruments. When engineers want to measure more than one parameter on their signal, they need to have two multimeters to measure two different me...
    Seok Jin Wong
    created by Seok Jin Wong
  • How to Phase Synchronize Two Signals Together with a Function Generator

    When you hear the word “synchronize,” you might think of synchronized swimming. Or, perhaps, synchronizing your watches. Well, we are talking about the same thing related to electronic signaling phase sync...
    bernard ang
    created by bernard ang
  • Does My Power Supply Have Multiple Range Output?

    During the last couple of decades of technology evolution, we’ve seen how electrical and electronic design platforms have product cycles shortened to three to five years. Measurement instruments need to catch up...
    CS
    created by CS
  • How to Measure Inrush AC Current

    Measuring inrush current is always interesting. In some devices, inrush current can be surprisingly high (10x or higher than their steady current). Excessive inrush current can damage components and pc boards designed...
    bill griffith
    created by bill griffith
  • Tips for Preventing Damage to your Digital Multimeter

    Using a digital multimeter (DMM) to perform measurements is very common in today’s world. Technicians use multimeters for equipment servicing, engineers use multimeters to troubleshoot, students use multimeters ...
    Seok Jin Wong
    last modified by Seok Jin Wong
  • Creating Arbs Today is Easy! Part 1

    In this blog post we will look at how easy it is to create arbitrary waveforms on a modern function / arbitrary waveform generator (AWG). I am always running into engineers, young and old alike, that try at all costs ...
    bernard ang
    last modified by bernard ang
  • Digital Multimeter AC Measurement Considerations

    AC RMS is the most useful measurement for real-world waveforms because it does not depend on the shape of the signal. Most of the time, RMS measurement is described as a measure of equivalent heating value with a rela...
    Seok Jin Wong
    created by Seok Jin Wong
  • How to Time Synchronize Multiple Function Generators Together

    Most basic bench function generators have only one or two output channels. In some cases, you may need more than two channels. Due to this need, many test engineers are forced to buy very expensive multichannel wavefo...
    bernard ang
    last modified by bernard ang
  • 3 Things You Need to Know about Remote Sensing

    Have you ever set your power supply output voltage to a value and found the voltage at your load was lower than you expected? Many of us have experienced that outcome, and that’s because remote sensing needs to ...
    CS
    last modified by CS
  • How to detect stray voltages with a handheld multimeter

    Have you ever encountered a scenario in which an AC voltage signal is measured on an electrical circuit that has been completely disconnected? Isn’t it confusing when voltage is measured in the dummy circuits? &...
    Seok Jin Wong
    created by Seok Jin Wong
  • How to Create Differential Signals with a Function Generator

    Aside from wireless and fiber optic transmissions, in this modern digital and mixed-signal age, many of our data transmissions go through good old-fashioned conducting cables. The two most common types of cables are d...
    bernard ang
    created by bernard ang
  • Safeguard your Power-sensitive DUTs from an Over Power Condition

    As the world continues to trend toward increased energy savings and green energy sources, more and more heavy machinery and vehicles are becoming electrified. Mechanical combustion engines are being replaced by electr...
    CS
    last modified by CS