To enhance the load-bearing capacity of a DC stabilized power supply, it is necessary to increase the transformer's capacity. The transformer design must be redundant with ample reserves. Increasing the output capacity of the subsequent stage can reduce the current ripple and improve dynamic load-bearing capability.
Loadable DC stable power supplies, in fact, when purchasing power supplies, you are already familiar with the voltage (V) and current (A) values. Multiplying these two values gives you the power. The principle of a variable DC stabilizing power supply is to rectify and convert the voltage, then adjust the equivalent voltage by rapidly changing the switch, and finally rectify it. A large electrolytic capacitor has a voltage limit. If the voltage is too high, the capacitor cannot hold the charge and may explode. Various electronic components can generate excessive heat if their power is too high, which can lead to burning. Therefore, the rated power limits the current.
This depends on the load size. If the power rating is constant, for a load of 400W or less, you might consider purchasing a 500W power supply (leaving some headroom to enhance durability), but this does not mean a 400W power supply cannot power a 600W load. However, if the system experiences a short-term overload (e.g., a DC motor is turned on directly, resulting in a very high instantaneous current), you can connect a relatively large capacitor. This way, when a high current output is required, the capacitor can assist in discharging.
When dealing with AC, you must also consider the power factor, as AC parameters are measured in kilovolt-amperes. However, we know that some parts of AC do not work, such as capacitors and inductors. Therefore, if you want to consume more active power, you need to greatly increase the power factor and see how you can use the circuit to compensate for the power factor.
In terms of loading, there is a theorem regarding transmission power. For AC systems, you can use a small transformer to convert resistance to match the internal resistance of the load and power source, enabling the output power to reach a high value.
