DC regulated power supply develops towards high precision
(1) Voltage adjustment rate SV. The voltage adjustment rate is an important index to characterize the quality of the DC stabilized voltage power supply, also known as the voltage regulation coefficient or the stability coefficient, which characterizes the degree of stability of the output voltage VO of the DC stabilized power supply when the input voltage VI changes, usually in Expressed as a percentage of the relative change in input and output voltages per unit output voltage. Voltage regulation formula.
(2) Current adjustment rate SI. The current adjustment rate is a main self-index reflecting the load capacity of the DC regulated power supply, also known as the current stability coefficient. It characterizes the ability of the DC stabilized power supply to suppress the fluctuation of the output voltage caused by the change of the load current (output current) when the input voltage is constant. Under the condition of the specified load current change, it is usually expressed as unit output voltage The percentage of the output voltage change value is used to represent the current adjustment rate of the DC stabilized power supply. Current regulation formula.
(3) Ripple rejection ratio SR. The ripple rejection ratio reflects the ability of the DC stabilized power supply to suppress the mains voltage introduced by the input terminal. When the input and output of the DC stabilized power supply remain unchanged, the ripple rejection ratio is often expressed as the input ripple The ratio of the peak-to-peak value of the voltage to the peak-to-peak value of the output ripple voltage is generally expressed in decibels, but sometimes it can also be expressed in a percentage, or directly expressed by the ratio of the two.
(4) Temperature stability K. The temperature stability of the integrated DC regulated power supply is the percentage value of the relative change in the output voltage of the DC regulated power supply within the specified maximum variation range of the operating temperature Ti of the DC regulated power supply (Tmin≤Ti≤Tmax). Temperature Stability Formula.
