A Design Method of Power Supply Upgraded by Integrated Circuit
A design method and integrated circuit technology, applied in the electronic field, to achieve excellent performance, good lightning protection effect, and excellent performance
Active Publication Date: 2019-11-05
CHONGQING NINGLAI SCI & TRADE
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Problems solved by technology
The third difficulty is that when there is mains power, it is a system for the load, and when there is no mains power, it is powered by the battery system. The conversion between the two is automatic switching, so how to realize the scientific conversion
Method used
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Embodiment Construction
[0051] Figure 1 and Figure 2 express a production example.
[0052] 1. Select components.
[0053] 1. The voltage regulation voltage of the lightning protection voltage regulator tube is selected to be a voltage regulator tube with a certain voltage higher than the rectification output.
[0054] 2. Constant current regulator, charging regulator and three-terminal voltage regulator all adopt three-terminal integrated voltage regulator circuit.
[0055] 3. Both the discharge tube and the blocking tube are NPN transistors.
[0056] 4. Choose a surface-mounted diode for the isolation diode.
[0057] 2. Welding: The specific electronic circuit is welded as shown in Figure 2.
[0058] Three, power inspection and debugging.
[0059] 1. Check the symmetry and output voltage of the AC stabilized voltage level: test the output voltage of the two-terminal and three-terminal stabilized voltage should be basically the same, if not, adjust the resistance of the three-terminal voltage st...
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The invention discloses a power supply design scheme upgraded by an integrated circuit. The power supply design scheme belongs to the field of electronic technologies, and is formed by a rectifying stage, a switch lightning protection stage, an AC voltage-stabilizing stage, a constant current stage, a voltage-stabilized charging stage, a storage battery, a discharge stage and a blocking stage. The power supply design scheme is characterized in that: a three-terminal integrated voltage-stabilizing circuit is utilized to form combinations of various kinds of logic, a relay and a voltage-stabilizing tube are adopted to form the switch lightning protection stage with quick response so as to form lightning protection, the output of the rectifying stage is connected with the switch lightning protection stage, the output of the switch lightning protection stage is connected with the AC voltage-stabilizing stage, the constant current stage, the discharge stage and the blocking stage, the output of the blocking stage is connected with the storage battery and the discharging stage, and the output of the discharging stage and the output of the AC voltage-stabilizing stage form the output of a floating charge voltage stabilization source with quick lightning response. Through the implementation of the power supply design scheme, the service life of the storage battery is guaranteed maximally, scientific floating charge is realized, and the contradiction between charge and discharge when matching the storage battery is solved, thus a power supply designed by the power supply design scheme has wide and special application.
Description
technical field [0001] It belongs to the field of electronic technology. Background technique [0002] The voltage regulator is an important part of electronic products, and its excellent performance is directly related to the overall performance, so there are many excellent voltage regulator integrated circuits, such as 78 series, 79 series and so on. Although the above-mentioned integrated series have many advantages, they still cannot meet the ever-changing needs. [0003] For example, the company has applied for several products related to security equipment. The products of these devices have very high requirements on the power supply, which is far higher than that of ordinary household appliances, and the traditional design scheme is not competent. The reasons are as follows: First, the power supply is often an electrical appliance, the key part that is most likely to fail, and it is the same for ordinary household appliances. This is especially true for products eq...
Claims
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IPC IPC(8): H02J7/00
CPCH02J7/0029
Inventor 不公告发明人
Owner CHONGQING NINGLAI SCI & TRADE