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please explain what S1 does.
2y
The component S1 is a Single Pole Double Throw (SPDT) relay.
A relay is an electromechanical switch controlled by an electrical signal. It is used to control a high-power device with a low-power signal.
The SPDT relay has three terminals:
- A (normally closed): The relay connects to this terminal when no power is applied.
- COM (common): This line is connected to either A or B, depending on the relay's state.
- B (normally open): The relay connects to this terminal when power is applied.
In a typical application, you would apply an electrical signal to either the 'A' or 'B' terminal. The relay acts as a switch and establishes a connection between that terminal and the 'COM' terminal. The operating principle of the relay (and thus the state of the 'A' or 'B' connections) can be modified in various ways, but that is the basic idea of how it functions.
However, given that this is a power relay, the pins may not correspond exactly to the description above, as it depends on the specific pinout provided by the manufacturer. Please ensure you check the datasheet for the power relay to confirm the pin assignments.
2y
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2
A
L1
COM
S1
L3
Inductance
2.2 H
B
L2
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Inspect
SPDT SRD Series Form C
Controls
Properties
Part Type
Switch
Manufacturer Part Number
SRD-05VDC-SL-C
Manufacturer Name
Designator Prefix
K
Assets
relay-on.svgid=relay-on
- Relay_SPDT_SANYOU_SRD_Series_Form_C.step
id=3D_Relay_SPDT_SANYOU_SRD_Series_Form_C
- Relay_SPDT_SANYOU_SRD_Series_Form_C.kicad_mod
id=Relay_SPDT_SANYOU_SRD_Series_Form_C
3d Model
Footprint
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- S1 (SPDT switch)
- Pins: COM, A, B (Single-Pole Double-Throw switch)
- L3 (Inductor)
- Pins: P1, P2 (2.2 µH inductor, SMD package)
- Multiple Pins/Terminals
- COM, B, L1, L2, A (these appear to be points or terminals on a PCB)
Nets and Connections- Net 5
- Connects: S1:COM
- Net 1
- Connects: L3:P1
- Net 3
- Connects: S1:A
- Net 4
- Connects: S1:B
- Net 2
- Connects: L3:P2
Missing Connections- A, B, L1, L2, COM terminals are defined but not connected to any nets in the given information.
Typical Assumptions for Connections- The SPDT switch will have:
- COM connected to a common node.
- A and B connected to different paths that can be switched.
Suggested Changes/Improvements