Introduction of DC socket output voltage
Release time：2018-09-07 Clicks： Click
What's the output voltage of DC socket and what's the production index? Today we'll introduce it to you.
DC socket manufacturers for the production of the main product requirements are the highest, DC socket manufacturers in many products only high-quality mainstream products have a higher strength than other manufacturers, therefore, we for the main product strength and quality are impeccable, in many products, we also want to choose Note the information of manufacturers, if the DC socket products or for some manufacturers do not know, then our large-scale selection of products is very passive, at any time there is a possibility of loss, before the selection, DC socket to understand, including DC socket technical requirements and specifications, to pay attention to the following items:
1. Check whether the logo on the plug socket is complete, including the name of DC socket manufacturer, specifications and models, rated current value, power quality symbols and related warnings.
2. Choose the appropriate plug socket according to the power of the appliances. The two kinds of household appliances with higher power should not be plugged into the same socket.
3, do not plug large power appliances into sockets with small current rating.
4. Plug insertion socket should contact compact DC socket, there is no feeling of loosening, and not too hard to pull out.
General specification for general characteristic sockets:
1 rating: DC30V/0.1A.
2 working temperature: -10 C ~70 centigrade.
3 storage temperature: -20 C ~80 C.
4 the qualification rate is above the normal test condition (without special description measurement).
When choosing DC outlets, reliability is always a priority, must remember that the quality of the chest, must select a good brand trustworthy DC outlet manufacturers, to avoid buying inferior products.
The test method of socket and switch is the basic knowledge of every electrician. It can be tested in the following aspects: 1. Preliminary check of the output voltage (or the range of output voltage regulation) of socket and switch power supply circuit is the basic characteristic index of selecting power supply circuit.
The output voltage of the power supply circuit is usually measured by a direct current voltmeter (digital direct current voltmeter, direct current electronic voltmeter or multimeter) without connecting the load resistance. The output voltage potentiometer (for the voltage stabilized power supply circuit) is regulated by adjusting the output voltage of the power supply circuit with adjustable DC outlet voltage. Monitor whether the output voltage value changes accordingly.
The output voltage of a normal regulated power supply circuit varies linearly with the regulation of the output voltage potentiometer. If the circuit loses its automatic regulation function during the test, it is certain that a fault occurs in a certain part of the feedback loop (such as a tube cut-off or saturation). At this time, the reference voltage can be detected separately by a DC voltmeter. The input voltage, the output voltage and the voltage (mainly Vbeo, Vceo) of the amplifier circuit and the regulator poles are compared, and their working conditions are analyzed.
DC outlet manufacturer analysis, the output of the power supply circuit to choose the appropriate load resistance RL value (available resistance value is tens to hundreds of resistors, DC outlet rated power supply is greater than the maximum output current of the power supply circuit slider resistance) so that the output current of the power supply to a specified value, for example, take output current and other sub-maximum output current 1/2, with the use of. Direct current voltmeter (digital direct current voltmeter, direct current electronic voltmeter or multimeter) measures the output voltage of the power supply circuit. For the power supply circuit with a fixed output voltage, the output voltage should conform to the specified value of technical specifications (e.g. Vo = 24V + 0.5V).
For the power supply circuit with adjustable output voltage, the range of the output voltage should cover the range of the output voltage specified by the technology (e.g. Vo=18V+0.5V--24V+0.5V). If the range of the output voltage does not meet the requirements of the specified technical specifications, the sampling resistance of the power supply circuit can be adjusted appropriately to meet the requirements. Provisions, but if the output voltage value Vo and the stipulated requirements are far from, then should check the voltage and input voltage of the quasi-power supply circuit is in line with the requirements, in the linear region, through analysis can generally find out the reasons for the abnormal power supply, 3. test circuit for the output voltage or output voltage adjustment range test Connect the circuit according to the following figure.