English dropdown-ico

Manual Agilent Technologies AN 372-1

14 pages 0.26 mb
Download

Go to site of 14

Summary
  • Agilent Technologies AN 372-1 - page 1

    Agilent AN 372-1 Power Supply T esting Application Note An electronic load offers a broad range of operating modes, providing versatile loading configurations needed for characterizing and verifying DC power supply design specifications. ...

  • Agilent Technologies AN 372-1 - page 2

    2 As regulated-pow er supply technology ev olves, testing methods for design verification and product function require more sophisticated electronic equip- ment. The different po wer suppl y architectures and output combinations also dictat e the need for versatile test instruments that can accommodat e a broad range of specifications. As a result, ...

  • Agilent Technologies AN 372-1 - page 3

    3 P ow er supplies are used in a wide variety of prod- ucts and test systems. As a result, t he tests per- formed to deter mine operating specifications can differ from manufacturer to manufacturer , or from end user to end user . For instance, t he tests per- formed in an R&D environment are primaril y for po wer supply design v erification. T ...

  • Agilent Technologies AN 372-1 - page 4

    4 Load T ransient Recovery Time A constant voltage DC pow er supply is designed with a feedback loop which continuously acts to maintain t he output voltage at a steady-st ate level. The feedback loop has a finite bandwidth, which limits the ability of t he po wer supply to respond to a change in the load cur rent. If the time delay between the po ...

  • Agilent Technologies AN 372-1 - page 5

    5 F or a step change in load cur rent, a marginally stable CV pow er supply will hav e a ringing voltage output. This defeats the purpose of the po wer sup- ply’s regulation circuitry and can be damaging to voltage-sensitive loads. An exam ple of a voltage- sensitive load is the logic circuitry in a computer . In this case, a computer manufacture ...

  • Agilent Technologies AN 372-1 - page 6

    6 Load Effect (Load Regulation) Load Effect or Load Regulation is a static per form- ance measurement which defines t he ability of a po wer supply under test to remain within specif ied output limits for a predetermined load change (see Figure 3). In a CV pow er supply , the inf luenced quantity of interest is the st eady-st ate output cur- rent. ...

  • Agilent Technologies AN 372-1 - page 7

    7 Current Limit Characterization Cur rent limit measurements demonstrat e the deg ree t o which a constant voltage pow er supply limits its maximum output current to a preset value. This preset value can be fixed or variable throughout a specified range. There are basically three types of current limiting design implementations: 1. Conventional cur ...

  • Agilent Technologies AN 372-1 - page 8

    8 P ARD (Periodic and Random Deviation) P ARD (f ormerly known as ripple and noise) is the periodic and random deviation of the DC output voltage from its a verage value, o ver a specified bandwidth, and wit h all other parameters con- stant. It is represent ative of all undesirable A C and noise components that remain in the DC output voltage aft ...

  • Agilent Technologies AN 372-1 - page 9

    9 T est Overview/Procedures T o make P ARD measurements, t he electronic load used should operate in CR mode for constant volt- age and constant cur rent po wer supplies. The load should also hav e lo wer P ARD than the pow er sup- ply being tested. This is especially important when measuring the P ARD of linear po wer supplies, since t hey typical ...

  • Agilent Technologies AN 372-1 - page 10

    10 Efficiency The eff iciency of a pow er supply is simply the ratio of its tot al output po wer to its tot al input po wer . T o obt ain the tr ue input po wer (rms voltage x in-phase rms cur rent) of a typical A C-to-DC converting po wer supply , commerciall y available wattmeters or A C sources can be used to measure the necessar y paramet ers. ...

  • Agilent Technologies AN 372-1 - page 11

    11 T o fully characterize the st ar t-up sequence of the po wer supply under test, measurements must be made of the output voltage response to t he instan- t aneous application of the AC in put (see Figure 1 1). A digital oscilloscope should be used so t hat stor- age of the output values can be accomplished f or the measured st ar t-up time period ...

  • Agilent Technologies AN 372-1 - page 12

    12 An observation of any DC po wer supply data sheet fr om a po wer suppl y manufacturer reveals a number of design specifications t hat must be verified and tested. These t ests oft en differ in technique and in the test equipment t hat is used to measure t he var- ious parameters. The common aspect of all of these tests is that a met hod of contr ...

  • Agilent Technologies AN 372-1 - page 13

    13 The Agilent Electronic Load Family offers the po wer suppl y test er t he solution f or man y of the tests t hat must be performed. For bench or system applica- tions in large or small scale testing environments, Agilent Electronic Loads pro vide high quality and reliability with superior per formance, features, and documentation. This will make ...

  • Agilent Technologies AN 372-1 - page 14

    By internet, phone, or fax, get assist ance with all your test and measurement needs. Online Assistance www .agilent.com/find/assist Phone or Fax United States: (tel) 1 800 452 4844 Canada: (tel) 1 877 894 4414 (fax) (905) 282 6495 Europe: (tel) (31 20) 547 2323 (fax) (31 20) 547 2390 Japan: (tel) (81) 426 56 7832 (fax) (81) 426 56 7840 Latin Ameri ...

Manufacturer Agilent Technologies Category Blood Glucose Meter

Documents that we receive from a manufacturer of a Agilent Technologies AN 372-1 can be divided into several groups. They are, among others:
- Agilent Technologies technical drawings
- AN 372-1 manuals
- Agilent Technologies product data sheets
- information booklets
- or energy labels Agilent Technologies AN 372-1
All of them are important, but the most important information from the point of view of use of the device are in the user manual Agilent Technologies AN 372-1.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Agilent Technologies AN 372-1, service manual, brief instructions and user manuals Agilent Technologies AN 372-1. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Agilent Technologies AN 372-1.

Similar manuals

A complete manual for the device Agilent Technologies AN 372-1, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Agilent Technologies AN 372-1 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Agilent Technologies AN 372-1.

A complete Agilent Technologies manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Agilent Technologies AN 372-1 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Agilent Technologies AN 372-1, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Agilent Technologies AN 372-1, that we can find in the current document
3. Tips how to use the basic functions of the device Agilent Technologies AN 372-1 - which should help us in our first steps of using Agilent Technologies AN 372-1
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Agilent Technologies AN 372-1
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Agilent Technologies AN 372-1 in a specific country, if it was not possible to solve the problem on our own.

Do you have a question concerning Agilent Technologies AN 372-1?

Use the form below

If you did not solve your problem by using a manual Agilent Technologies AN 372-1, ask a question using the form below. If a user had a similar problem with Agilent Technologies AN 372-1 it is likely that he will want to share the way to solve it.

Copy the text from the picture

Captcha
New picture

Comments (0)