Products for USB Sensing and Control
Products for USB Sensing and Control

PHIDGETS Inc.

Unit 1 - 6115 4 St SE
Calgary AB  T2H 2H9
Canada
+1 403 282-7335

Programmable Power Guard Phidget

ID: SAF1000_0

Protect your circuit and power supply by detecting and preventing overvoltage and overtemperature situations.

$95.00

Quantity Available: 488

Qty Price
5 $90.25
10 $85.50
25 $76.00
50 $66.50
100 $61.75
250 $57.00
500 $52.25
1000 $47.50

When high-power motor stalls or stops suddenly, it can generate a high-voltage surge that can damage the circuitry of the motor controller and burn out the power supply. This Power Guard Phidget is designed to protect your hardware from such an event by preventing current from flowing back into the power supply, and by providing a heatsink and fan for the excess power to dissipate. This board is designed for high current systems and is capable of protecting your equipment from even the largest of power spikes. Simply connect your power supply's positive wire to the 8-30V input lug, connect your device's positive wire to the output lug, and wire both grounds to the ground lug. The SAF1000 connects to a port on a VINT Hub. See the Comaptible Products tab for a list of hubs.



Power Control and Safety Features

Since this is an intelligent VINT device, the over voltage trigger can be modified in software to accomodate for different power supplies. Similarly, the fan can be switched on or off, or it can be set to turn on when a certain temperature threshold is passed. You can also choose to switch the power off through software, like a relay. Even if communication between this board and the computer is interrupted, it will continue to power the device and protect against the last chosen overvoltage trigger.

Isolated for Stability

The VINT port on this board is electrically isolated from the rest of the board in order to improve stability by eliminating ground loops.

We strongly recommend using this Phidget according to the table below:

Recommended Use

Controller Motor Rated Current Suggested Power Guard
STC1000 Less than 1.5A None
STC1000 1.5A to 5A SAF2000
STC1000 Greater than 5A SAF1000
DCC1000 Less than 1A None
DCC1000 1A to 5A SAF2000
DCC1000 Greater than 5A SAF1000

VINT Hubs

This Phidget is a smart device that must be controlled by a VINT Hub. For more information about VINT, have a look at the VINT Primer. You can use a Phidget Cable to simply and easily connect the two devices. Here's a list of all of the different VINT Hubs currently available:

Product Board
Image Part Number Price Number of VINT Ports
HUB0000_0 $30.00 6
SBC3003_0 $120.00 6

Phidget Cables

Use a Phidget cable to connect this device to the hub. You can solder multiple cables together in order to make even longer Phidget cables, but you should be aware of the effects of having long wires in your system.

Product Physical Properties
Image Part Number Price Cable Length
3002_0 $2.00 600 mm
3003_0 $1.50 100 mm
3004_0 $3.00 3.5 m
3034_0 $1.50 150 mm
3038_0 $2.25 1.2 m
3039_0 $2.75 1.8 m

Power Supplies

This Phidget protects a power supply between 8 and 30V DC. Check the product page or data sheet of the device being powered to determine how much current is needed and what voltage range is permissable. Select the power supply from the list below that matches your region's wall socket type.

Product Electrical Properties Physical Properties
Image Part Number Price Power Supply Voltage Min Power Supply Voltage Max Power Supply Current Wall Plug Style
3022_0 $10.00 11.4 V DC 12.6 V DC 2 A Australian
3023_1 $10.00 11.4 V DC 12.6 V DC 2 A European
3024_1 $10.00 11.4 V DC 12.6 V DC 2 A North American
3025_0 $10.00 11.4 V DC 12.6 V DC 2 A British
3080_0 $25.00 11.4 V DC 12.6 V DC 5 A Australian
3081_0 $25.00 11.4 V DC 12.6 V DC 5 A European
3082_0 $25.00 11.4 V DC 12.6 V DC 5 A North American
3083_0 $25.00 11.4 V DC 12.6 V DC 5 A British
3084_0 $4.50 11.4 V DC 12.6 V DC 500 mA European
3085_0 $4.50 11.4 V DC 12.6 V DC 500 mA North American
3086_0 $10.00 22.8 V DC 25.2 V DC 1 A North American
PSU4015_0 $20.00 21.6 V DC 26.4 V DC 1 A
PSU4016_0 $40.00 21.6 V DC 28.8 V DC 15 A
PSU4017_0 $75.00 20 V DC 26.4 V DC 15 A


Getting Started

Welcome to the SAF1000 user guide! In order to get started, make sure you have the following hardware on hand:

Next, you will need to connect the pieces:

SAF1000 Functional.jpeg
  1. Connect the SAF1000 to your VINT Hub using the Phidget cable.
  2. Connect the VINT Hub to your computer using the USB cable.
  3. Connect the positive power terminal of the device you're powering to the "OUT" terminal on the SAF1000.
  4. Connect the ground terminal of the device you're powering to the ground terminal on the SAF1000.
  5. Connect the positive and negative wires of your power supply to the "Vin" and "GND" terminals of the SAF1000, respectively.
  6. Plug in your power supply.


Using the SAF1000

Phidget Control Panel

In order to demonstrate the functionality of the SAF1000, the Phidget Control Panel running on a Windows machine will be used.


The Phidget Control Panel is available for use on both macOS and Windows machines.

Windows

To open the Phidget Control Panel on Windows, find the Ph.jpg icon in the taskbar. If it is not there, open up the start menu and search for Phidget Control Panel

Windows PhidgetTaskbar.PNG

macOS

To open the Phidget Control Panel on macOS, open Finder and navigate to the Phidget Control Panel in the Applications list. Double click on the Ph.jpg icon to bring up the Phidget Control Panel.


For more information, take a look at the getting started guide for your operating system:


Linux users can follow the getting started with Linux guide and continue reading here for more information about the SAF1000.

First Look

After plugging the SAF1000 into your computer and opening the Phidget Control Panel, you will see something like this:

SAF1000 Panel.jpg


The Phidget Control Panel will list all connected Phidgets and associated objects, as well as the following information:

  • Serial number: allows you to differentiate between similar Phidgets.
  • Channel: allows you to differentiate between similar objects on a Phidget.
  • Version number: corresponds to the firmware version your Phidget is running. If your Phidget is listed in red, your firmware is out of date. Update the firmware by double-clicking the entry.


The Phidget Control Panel can also be used to test your device. Double-clicking on an object will open an example.

Power Supply Protector

Double click on the Power Supply Protector object in order to run the example:

SAF1000 DigitalInput Example.jpg

General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Adjust the voltage cutoff slider to determine at which voltage the SAF1000 will cut power to your system.
  • Select the fan mode- on, off, or auto (automatically turns on when board reaches 70°C, turns off after dropping below 55°C)
  • Click the enabled box once the cutoff and fan mode are set in order to activate the SAF1000.

Temperature Sensor

Double-click on the Temperature Sensor object , labelled Temperature Sensor, in order to run the example:

SAF1000 TemperatureSensorIC Example.jpg


General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • Modify the change trigger and/or data interval value by dragging the sliders. For more information on these settings, see the data interval/change trigger page.
  • The measured temperature can be seen next to the Temperature label. Cover the board with your hands to see the temperature quickly rise.


Supply Voltage Input

Double-click on a Supply Voltage Input object in order to run the example:

SAF1000 VoltageInputSupply Example.jpg

General information about the selected object will be displayed at the top of the window. You can also experiment with the following functionality:

  • At the top of the window, information about your device and the properties of this particular channel will be listed.
  • On the left, change trigger and/or data interval can be changed. For more information on these settings, see the Data Rate/Change Trigger page.
  • On the right, the supply voltage of the Phidget is displayed in real-time.


Finding The Addressing Information

Before you can access the device in your own code, and from our examples, you'll need to take note of the addressing parameters for your Phidget. These will indicate how the Phidget is physically connected to your application. For simplicity, these parameters can be found by clicking the button at the top of the Control Panel example for that Phidget.

The locate Phidget button is found in the device information box

In the Addressing Information window, the section above the line displays information you will need to connect to your Phidget from any application. In particular, note the Channel Class field as this will be the API you will need to use with your Phidget, and the type of example you should use to get started with it. The section below the line provides information about the network the Phidget is connected on if it is attached remotely. Keep track of these parameters moving forward, as you will need them once you start running our examples or your own code.

All the information you need to address your Phidget

Using Your Own Program

You are now ready to start writing your own code for the device. The best way to do that is to start from our examples:

This Phidget is compatible with the following examples:


Once you have your example, you will need to follow the instructions on the page for your programming language to get it running. To find these instructions, select your programming language from the Software Overview page.

What to do Next

  • Software Overview - Find your preferred programming language here to learn how to write your own code with Phidgets!
  • General Phidget Programming - Read this general guide to the various aspects of programming with Phidgets. Learn how to log data into a spreadsheet, use Phidgets over the network, and much more.
  • Phidget22 API - The API is a universal library of all functions and definitions for programming with Phidgets. Just select your language and device and it'll give you a complete list of all properties, methods, events, and enumerations that are at your disposal.

Product Specifications

Board Properties
Controlled By VINT
Power Supply Protector
Overvoltage Setting Selectable via software 8 - 33 VDC
Overtemperature Trigger 125 °C
Sampling Interval Min 100 ms/sample
Sampling Interval Max 60 s/sample
Fan Trigger 75 °C
Electrical Properties
Continuous Current 50 A
Current Consumption Min (VINT Port) 100 μA
Supply Voltage Min 8 V DC
Supply Voltage Max 30 V DC
Power Consumption 250 mW
Physical Properties
Recommended Wire Size 6 - 14 AWG
Operating Temperature Min -40 °C
Operating Temperature Max 85 °C

Software Objects

Channel NameAPIChannel
Power Supply Protector PowerGuard 0
Voltage Sensor VoltageInput 0
Temperature Sensor TemperatureSensor 0

API


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Documents

Library & Driver Downloads

Code Samples

Language:

APIDetailLanguageOS
PowerGuard C Multiple Download
PowerGuard C# Windows Download
PowerGuard Java Android Download
PowerGuard JavaScript Nodejs Download
PowerGuard JavaScript Browser Download
PowerGuard Objective-C macOS Download
PowerGuard Swift macOS Download
PowerGuard Swift iOS Download
PowerGuard Python Multiple Download
PowerGuard Visual Basic .NET Windows Download
PowerGuard Max/MSP Multiple Download
VoltageInput C Multiple Download
VoltageInput C# Windows Download
VoltageInput Java Multiple Download
VoltageInput Java Android Download
VoltageInput JavaScript Nodejs Download
VoltageInput Multi-Channel Example JavaScript Browser Download
VoltageInput JavaScript Browser Download
VoltageInput Objective-C macOS Download
VoltageInput Swift macOS Download
VoltageInput Swift iOS Download
VoltageInput Python Multiple Download
VoltageInput Visual Basic .NET Windows Download
VoltageInput Max/MSP Multiple Download
TemperatureSensor C Multiple Download
TemperatureSensor C# Windows Download
TemperatureSensor Java Multiple Download
TemperatureSensor Java Android Download
TemperatureSensor JavaScript Nodejs Download
TemperatureSensor JavaScript Browser Download
TemperatureSensor Objective-C macOS Download
TemperatureSensor Swift macOS Download
TemperatureSensor Swift iOS Download
TemperatureSensor Python Multiple Download
TemperatureSensor Visual Basic .NET Windows Download
TemperatureSensor Max/MSP Multiple Download

Product History

Date Board Revision Device Version Comment
August 20170101Product Release
January 20180102Increased change trigger limit from 25V to 32V