Chinese
ENGLISH
Today I will tell you what to do if the ripple of the DC regulated power supply is large. Generally, if the ripple is large, it is caused by the output voltage. When the power of the transformer is not enough or the filtering power storage is not enough, the voltage is not enough to meet the voltage regulation requirement. Conditions, the output ripple will naturally be very large. Even if the capacitance is large, the current on the diode used in a simple regulated power supply will change during AC peaks and valleys, and the diode will also change according to the current conditions of the diode. The voltage will also be different, so it will cause a change in the output voltage. Ripples will also occur.
There is also the problem of large output internal resistance. When our load changes, the current of the adjusting tube and emitter will change to adjust the emitter current to stabilize the voltage. The emitter current, load output voltage, and emitter voltage difference are all balanced. A large load will cause a voltage drop, just like the internal resistance is too large. In fact, it is just the load effect that is too large.
Methods for excessive internal resistance:
(1) Increase the power of the transformer to prevent the output voltage from falling when the load drops.
(2) The output voltage of the transformer can be appropriately increased.
(3) Increase the filter capacitance of the voltage stabilizing front stage
(4) Adjusting the base of the tube and adding a capacitor will play a source filtering role.
(5) Appropriately increase the filter capacitor after voltage stabilization.
There is also the problem of large output internal resistance. When our load changes, the current of the adjusting tube and emitter will change to adjust the emitter current to stabilize the voltage. The emitter current, load output voltage, and emitter voltage difference are all balanced. A large load will cause a voltage drop, just like the internal resistance is too large. In fact, it is just the load effect that is too large.
There is also the problem of large output internal resistance. When our load changes, the current of the adjusting tube and emitter will change to adjust the emitter current to stabilize the voltage. The emitter current, load output voltage, and emitter voltage difference are all balanced. A large load will cause a voltage drop, just like the internal resistance is too large. In fact, it is just the load effect that is too large.
Methods for excessive internal resistance:
(1) Increase the power of the transformer to prevent the output voltage from falling when the load drops.
(2) The output voltage of the transformer can be appropriately increased.
(3) Increase the filter capacitance of the voltage stabilizing front stage
(4) Adjusting the base of the tube and adding a capacitor will play a source filtering role.
(5) Appropriately increase the filter capacitor after voltage stabilization.
There is also the problem of large output internal resistance. When our load changes, the current of the adjusting tube and emitter will change to adjust the emitter current to stabilize the voltage. The emitter current, load output voltage, and emitter voltage difference are all balanced. A large load will cause a voltage drop, just like the internal resistance is too large. In fact, it is just the load effect that is too large.
