Voltage transformation module, charger, charging system and voltage transformation control method
A technology of transformer control and transformer mould, applied in the field of transformer modules, can solve the problems of battery pack, charger damage, increase in use and maintenance costs, etc.
Active Publication Date: 2021-04-30
CHANGZHOU GLOBE CO LTD
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Problems solved by technology
This makes the user need to equip a charger for each type of battery pack, thus increasing the user's maintenance cost
Moreover, because there are many types of chargers, it is easy for users to mistakenly connect a charger of one voltage with a battery pack of another voltage, thereby causing damage to the battery pack and charger.
Method used
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[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0028] see figure 1 As shown, the present invention discloses a transformer module 100, including a transformer 10, a primary circuit 20 connected to the transformer 10, a secondary circuit 30 connected to the transformer 10, a control unit 40 and a power supply Unit 50.
[0029] see figure 1 As shown, the transformer 10 includes an input part (not shown) and an output part (not shown) corresponding to the input part. Preferably, the transformer 10 is an isolation transformer. The primary side circuit 20 is connected to the input part, and includes an input port 21 , an input rectification and filtering circuit 22 and a PWM modulation circuit 23 . The input port 21 is used to obtain external power, such as alternating current. The input recti...
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The invention discloses a voltage transformation module, a charger, a charging system and a voltage transformation control method; the voltage transformation module comprises a transformer which comprises an input part and an output part corresponding to the input part; a primary side circuit which is connected with the input part and comprises an input port used for obtaining external power and a PWM modulation circuit; a secondary side circuit which is connected with the output part and comprises an output port for outputting electric power to a load; and a control unit which communicates with a load to obtain voltage information of the load, and controls the PWM modulation circuit to work according to the voltage information, so that the voltage output by the output port is matched with the load. Compared with the prior art, the voltage transformation module can automatically control the secondary circuit to output the voltage matched with the load according to the voltage information of the load, so that the application range of the voltage transformation module is wider, and the use and maintenance cost of a user is reduced.
Description
technical field [0001] The invention relates to a voltage transformation module, a charger, a charging system and a voltage transformation control method. Background technique [0002] With the development of the economy, household electric tools have entered thousands of households. Even, many users own multiple power tools at the same time, such as hair dryers, chain saws, electric drills and the like. Typically, battery packs for different power tool configurations have different voltages. Some power tool battery packs have a voltage of 20V, and some power tool battery packs have a battery pack voltage of 36V. This makes the user need to equip a charger for each type of battery pack, thereby increasing the use and maintenance cost of the user. Moreover, since there are many types of chargers, it is easy for users to mistakenly connect a charger of one voltage to a battery pack of another voltage, thereby causing damage to the battery pack and charger. [0003] In view...
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IPC IPC(8): H02M3/28H02H7/12H02J7/00
CPCH02M3/28H02H7/1213H02J7/007194
Inventor 朱艳强李志远庄宪聂琼张勇束阳陈辉
Owner CHANGZHOU GLOBE CO LTD