Technical specifications of DC voltage stabilized power supply
1、Characteristic index
(1) Output voltage range
In line with the DC regulated power supply operating conditions, the output voltage range that can work normally. The upper limit of this indicator is specified by the * large input voltage and * small input - output voltage difference, while its lower limit is determined by the DC regulated power supply internal reference voltage value.
(2) Maximum input-output voltage difference
This index characterizes the DC regulated power supply in the normal operating conditions, the allowable * large input - output voltage difference between the values mainly depends on the DC regulated power supply internal adjustment transistor voltage withstand indicators.
(3) Minimum input - output voltage difference
This indicator characterizes the DC regulated power supply to ensure normal operating conditions, the required * small input - output voltage difference.
(4)Output load current range
Output load current range is also known as the output current range, in this current range, DC regulated power supply should be able to ensure compliance with the indicators given in the specification.
2、Quality indicators
(1)Voltage regulation rate SV
Voltage adjustment rate is characterized by the DC regulated power supply voltage regulator performance of the important indicators, also known as the voltage factor or stability factor, which characterizes when the input voltage VI changes in the DC regulated power supply output voltage VO stable degree of input voltage is usually expressed as a unit of output voltage under the input and output voltages of the relative change in the percentage. The voltage regulation rate formula is shown in Figure 2-2-1.
(2) Current adjustment rate SI
Current adjustment rate is a major self-indicator to reflect the load capacity of DC regulated power supply, also known as current stability factor. It characterizes when the input voltage is unchanged, DC regulated power supply due to the load current (output current) changes caused by the output voltage fluctuation suppression ability, in the specified load current changes in the conditions, usually to the unit output voltage under the output voltage change in the percentage of the value of the DC regulated power supply current adjustment rate. Current adjustment rate formula is shown in Figure 2-2-2.
(3) Ripple rejection ratio SR
Ripple rejection ratio reflects the DC regulated power supply on the input side of the introduction of the utility voltage suppression ability, when the DC regulated power supply input and output conditions remain unchanged, the ripple rejection ratio is often input ripple voltage peak-to-peak and output ripple voltage peak-to-peak ratio expressed in decibels, generally expressed in decibels, but sometimes can be used as a percentage of the value of the two, or directly expressed as the ratio of the two.
(4) temperature stability K
Integrated DC regulated power supply temperature stability is based on the specified DC regulated power supply operating temperature Ti maximum change range (Tmin ≤ Ti ≤ Tmax) DC regulated power supply output voltage of the relative change in the percentage value.
