WDT
Watchdog timer
Supervises a qualifying activity signal and operates its output when the documented watchdog timing condition is violated.
Schematic
Symbols · SVS
Supply voltage supervisor
In plain English
What does Supply voltage supervisor mean?
A voltage supervisor checks a supply against specified conditions and produces a status or reset signal.
A simple example
A controller can be held in reset until its monitored supply reaches the required condition.
What the drawings help you do
Connect the monitored rail to the supervisor’s sensing input and label the reset or status output separately. A supervisor checks supply conditions; it does not necessarily regulate the supply itself. Show the output’s destination and the selected assertion/release behaviour.
- Reset
- A signal placing the receiving device in its specified starting condition.
- Assertion
- The transition into a signal’s defined active state.
Before using this reference
- Identify the monitored rail and sensing reference.
- Label reset or status output and its destination.
- Reference threshold, delay and output electrical behaviour.
Does the supervisor maintain the supply voltage?
A supervisor assesses a condition and reports or acts on it. The regulator or source maintaining the voltage is a separate function unless the chosen equipment explicitly combines them.
Read the source: Supply supervision and reset
Schematic · SVS
A distinction that matters
A supervisor reports or acts on a condition; it is not necessarily the regulator maintaining the voltage.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Supply supervision and reset
Supply supervision and reset: public technical context for the named function. Product and compliance details remain with the publisher.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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