The two functions are different:
(1) The function of switching power supply is to convert a standard voltage into the voltage or current required by the user through different forms of architecture;
(2) An adapter is placed in the large capacity test tube hole to achieve the test tube hole suitable for small capacity test tubes. In this way, only a large capacity rotor and a set of adapter can meet the requirements.
2. The two principles are different:
(1) In the linear power supply, the switching power supply makes the power transistor work in the linear mode. Unlike the linear power supply, the PWM switching power supply makes the power transistor work in the on and off state,
In these two states, the volt ampere product added to the power transistor is very small (when on, the voltage is low and the current is large; when off, the voltage is high and the current is small) / the volt ampere product on the power device is the loss generated on the power semiconductor device.
(2) The adapter is usually built into the card (or external) that can be inserted into the slot on the motherboard. The adaptation information in the card is exchanged with the processor and the equipment supported by the adapter;
3. Their working conditions are different:
(1) Switching power supply:
Switch: power electronic devices work in the switching state rather than the linear state;
High frequency: power electronic devices work at high frequency rather than low frequency close to power frequency;
DC: the output of switching power supply is DC rather than AC;
(2) Adapter
When the method defined in the interface cannot meet the customer's requirements, or the name of the method defined in the interface or the method interface conflicts with the customer's requirements.
Switching power supply working mode:
Switching power supply generally has three working modes: fixed frequency and pulse width mode, fixed frequency and pulse width variable mode, and variable frequency and pulse width mode.
The former working mode is mostly used for DC / AC inverter power supply or DC / DC voltage conversion; The latter two working modes are mostly used for switching regulated power supply.
In addition, the output voltage of switching power supply also has three working modes: direct output voltage mode, average output voltage mode and amplitude output voltage mode. Similarly, the former working mode is mostly used for DC / AC inverter power supply or DC / DC voltage conversion; The latter two working modes are mostly used for switching regulated power supply.
