Ways to effect an open circuit electronically

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Discussion Overview

The discussion revolves around methods to electronically create an open circuit, exploring various electronic components and their characteristics. Participants consider different approaches, including the use of transistors, capacitors, and relays, while discussing the implications of circuit parameters such as voltage and current.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Ramone inquires about electronic methods to create an open circuit, suggesting a mechanical approach with a coil-type switch.
  • Mohammed Omar proposes using a transistor in the off-region or a capacitor to create an open circuit.
  • Another participant emphasizes the importance of matching switch characteristics to circuit parameters, suggesting that a relay may be relevant to Ramone's initial description.
  • Ramone expresses interest in using a transistor but seeks clarification on dynamically increasing resistance to lower the base voltage.
  • A later reply discusses the differences between controlling a MOSFET and a BJT, noting that a MOSFET is controlled by voltage while a BJT is controlled by current.

Areas of Agreement / Disagreement

Participants present multiple competing views on how to electronically create an open circuit, with no consensus reached on the best method or approach.

Contextual Notes

Participants have not provided specific details about the type of current or the dynamic control mechanisms involved, which may affect the applicability of their suggestions.

ramonegumpert
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Hello Experts, :)

to cause and open circuit mechanically/electrically, i would use a coil type of switch. I wonder what are some of the electronic ways to effect an open a circuit?

thank you for reading and have a nice day.

best regards
Ramone :)
 
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ramonegumpert said:
Hello Experts, :)

to cause and open circuit mechanically/electrically, i would use a coil type of switch. I wonder what are some of the electronic ways to effect an open a circuit?

thank you for reading and have a nice day.

best regards
Ramone :)

Hi Ramone,

An open circuit could be made electronically through a transistor in the off-region, if I got your question correct.

You could also create a DC open circuit using a capacitor.

Best Regards,
Mohammed Omar
 
There are many ways to open a circuit electrically. Selecting the best one requires matching the characteristics of the switch to the parameters of the circuit. Some things to consider are the voltage, current, switching speed and control requirements.

From your description of a coil and switch it sounds like you're talking about a relay.
 
skeptic2 said:
There are many ways to open a circuit electrically. Selecting the best one requires matching the characteristics of the switch to the parameters of the circuit. Some things to consider are the voltage, current, switching speed and control requirements.

From your description of a coil and switch it sounds like you're talking about a relay.

Hi sketpic2,
yes, that is indeed what i was referring to.
thanks for your advice.

sincerely Ramone
 
mohammed.omar said:
Hi Ramone,

An open circuit could be made electronically through a transistor in the off-region, if I got your question correct.

You could also create a DC open circuit using a capacitor.

Best Regards,
Mohammed Omar


Thanks for the ideas.
I was thinking of transistor but then to dynamically turn off the current, i need to dynamically increase the resistance to lower the base voltage. I hope my understanding is correct.

Any suggestions?

sincerely Ramone
 
Can you give us more details? What kind of current do want to control (amps)? What is the dynamic thing that will be controlling the switch?

i need to dynamically increase the resistance to lower the base voltage.

A MOSFET is switched on and off by controlling the voltage at the base. A BJT is switched on and off by controlling the current that is injected into the base.
 

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