Desired characteristics in controllable switches
The characteristics of ideal controllable switch are as below:
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The characteristics of ideal controllable switch are as below:
- No power loss when ON
- No power loss when OFF
- No power loss during turning ON or OFF
- Little power required to turn it ON or OFF
- Adequate voltage and current ratings
- Low Turn-on and Turn-off times
- Small leakage current in the off state.
- Small on-state voltage drop.
- Short turn-on and turn-off times.
- Large forward- and reverse-voltage-blocking capability. (Reverse-voltage-blocking capability is not required in certain cases).
- High on-state current rating.
- Positive temperature coefficient of on-state resistance.
- Small control power required to switch the device.
- Capability to withstand rated voltage and rated current simultaneously while switching.
- Large dv/dt and di/dt ratings.
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