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Backgrounder Electrical Circuits in HYPERSIM

What is a circuit?

A circuit in HYPERSIM has the following characteristics:

  • A circuit can be drawn on one or more pages (up to 1000 in this version). You can elect to draw the entire circuit on a single page or divide it up functionally onto a number of pages.
  • Each page is viewed in a separate circuit window (tab) and any or all pages in a circuit can be displayed on the screen simultaneously.
  • A page is drawn on the screen as if it was a single piece of paper, although it may have to be broken up into a number of individual sheets of paper for printing or plotting.
  • Logical connections can be made between pages using a page connector device. Three versions of this device can be found in the built-in "Signal Routing" library. The "Page connector, control output/input" device is used to interconnect control signals across pages. The "Page connector, power signal" is used to interconnect power signals across pages. The “Page connector, bundle” is used to interconnect bundles across pages.

What types of objects make up a circuit?

  • An HYPERSIM circuit is made up of five types of entities: devices, pins, signals, text objects, and picture objects.
  • A device is an object having a symbol, signal connection points called "pins", and optional text attributes, internal circuit and simulation information. A device in HYPERSIM can correspond to a physical device in a circuit, or it can represent a sub-circuit block or a pseudo-device, such as a page connector.
  • A pin is a connection point on a device. A pin is not an independent entity since it only exists as part of a device and cannot be created or deleted separately. However, pins can have attributes, pin numbers and other parameters that may be different from pin to pin on the same device. A bus (bundle) pin is a special type of pin that represents an arbitrary number of internal pins. The internal pins are not visible on the schematic but can still have the same logical properties as other pins.
  • A signal is a conductive path between devices. Signal connections can be made visually by drawing lines between device pins or logically by name.
  • A text object is used to place a title block or other notation on the diagram. Text can be typed and edited directly within HYPERSIM or can be created externally and pasted onto the diagram from the clipboard. Text objects are not associated with any other object and are not accessible through net or component lists. The attribute facilities should be used to associate text with specific devices or signals.
  • A picture object is used to place any graphics item imported from another program or the symbol editor tool via the clipboard. The Schematic tool cannot edit picture objects directly, other than moving, deleting and copying them whole. They can, however, be pasted into a symbol editor (or other application) window, edited using the device symbol tools, then copied and pasted back into the schematic.

Using Gain, Offset, Min and Max values in the Schematic Editor

  • Users can convert the measured values to the voltage/current level of the analog output channel selected using the following formula: output y = Gain * measurement + offset.
  • You can change the Gain or the Offset of the measured value, in order that the output signal respects, for example, the +/- 16 V rating limits of the channel. 
  • Depending on the hardware used, these limits may vary, so users should consult their hardware documentation, along with the configuration of the hardware in the HYPERSIM or RT-LAB software.
  • In the Parameters sidebar, you can change the Gain of the measured voltage or current. Adding a gain of 2, for example, doubles the value sent to the analog output channel.

  • Change the Offset values as required. Users can also limit (or truncate) the output values sent to the analog output channel by adding Min and Max values. 
  • These two parameters can be used to prevent the analog output from reaching a specific limit–-or from falling below a certain threshold--if the hardware has particular constraints or may be damaged.

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