Contents
- 1 Why transient response What is the importance of the transient response of a system?
- 2 What is transient response in power supply?
- 3 How is transient measured?
- 4 How do you find a transient response?
- 5 Which is the fastest line and load transient response?
- 6 Which is better transient response or switching supply?
Why transient response What is the importance of the transient response of a system?
Transient response is a measure of how well a DC supply, such as the Sorensen SG Series, copes with changes in current demand or how well the supply follows load impedance changes. This is an important specification in many applications, such as mobile phone testing and testing automotive relays and fuses.
What is transient response in power supply?
Transient response is the amount that the output voltage may deviate due to a change in loading. When the load changes, the power supply cannot immediately react to the new conditions and either has too much stored energy or not enough.
What is transient response example?
Answer: Generally, a progress since a change has been given to a control system from an external source until the result reaches a steady state is called a transient response. For example, the switching time of a bipolar transistor and the reverse recovery time of a diode are examples of transient response.
How do you do a transient response?
The transient response of a system can be found by splitting a problem into two parts.
- The zero input part of the response is the response due to initial conditions alone (with the input set to zero).
- The zero state part of the response is the response due to the system input alone (with initial conditions set to zero).
How is transient measured?
Transient lifetime measurements rely on the decay of carriers over time. Carriers are generated by a very short pulse of light and the decay of the carrier density with time is measured. The longer the minority carrier lifetime the more slowly the carriers decay.
How do you find a transient response?
How does a line transient affect a power supply?
A load transient injects disturbance into the output by stepping the load current, and a line transient does so by stepping the line voltage. The supply’s output response demonstrates its ability to attenuate the various frequency components of a line or load step.
Why do CPUs need so much current and voltage?
The performance of most modern CPUs is actually thermally limited. This is relatively easy to calculate – I = C v α f, where I is the current, C is the load capacitance, v is the voltage, α is the activity factor, and f is the switching frequency. I’ll see if I can get ballpark numbers for a FinFET’s gate capacitance and edit. Sort of.
Which is the fastest line and load transient response?
At a phase margin of around 72° the recovery is the fastest with 0% overshoot. Generating line and load transient responses for power supplies must be done in a way that will generate relatively fast steps in line voltage and load current, and thus best approximate a true step function relative to the controller’s bandwidth.
Which is better transient response or switching supply?
Although linear supplies are less efficient than switching supplies, the power requirements are low, and the transient response of a linear supply is, in general, better then a switching supply. Testing automotive relays and fuses is, however, another matter.