current limiting การใช้

• A resistor provides the current limiting for the starting electrode.
• The current limiting of course depends upon the capacitor reactance.
• These measures include isolated patient connections, high impedance connections and current limiting circuits.
• Some have selectable current limiting as well.
• HMI bulbs ( like all arc bulbs ) need a current limiting unit to function.
• The circuit to the left overcomes the thermal problem ( see also, current limiting ).
• The backup current limiting fuse operates only during transformer failure, therefore it is not field replaceable.
• The current limiting is normally implemented as an anode resistor of a few tens of thousands of ohms.
• The simplest inrush-current limiting system, used in many consumer electronics devices, is a NTC resistor.
• Charging a capacitor with a current source ( the inductor ) prevents resistive current limiting and its associated energy loss.
• These strobes require a form of current limiting, because as mentioned before, an arc acts as a short circuit.
• This involves applying the operating voltage for some 10 minutes over a current limiting resistor to the terminals of the capacitor.
• With current limiting, the dissipation will increase to about 60 W if the output is shorted ! ! ( 2 ).
• SMPSs often include safety features such as current limiting or a crowbar circuit to help protect the device and the user from harm.
• In coin cell powered keyring-type LED lights, the resistance of the cell itself is usually the only current limiting device.
• To prevent this, the fault current is typically limited by a thermal fuse, circuit breaker, or other current limiting device.
• A triggered current limiter will always be " Current Limiting " which means it will interrupt the circuit before the first peak current occurs.
• "' Foldback "'is a current limiting feature ( a type of overload protection ) of power supplies and power amplifiers.
• A surge protector is not current limiting to normal load and it is very unlikely that electromagnetic induction electrical resonance has any thing to do with this.
• The main motive of using current limiting reactors is to reduce short-circuit currents so that circuit breakers with lower short circuit breaking capacity can be used.