Power supply device and control method and system
A technology of power supply device and switching power supply, which is applied in the direction of circuit device, battery circuit device, output power conversion device, etc., and can solve the problem of being unable to provide the charging and discharging power required for work.
Pending Publication Date: 2021-06-08
SUNGROW POWER SUPPLY CO LTD
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[0003] In view of this, the purpose of the present invention is to provide a power supply device, control method and system to solve the technical problem that the traditional power supply device cannot simultaneously provide the object with the power required for work and meet the object's charging and discharging requirements. The disclosed technical solution as follows:
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[0052] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0053] See figure 1 , shows a schematic structural diagram of a power supply device provided by an embodiment of the present application, and the power supply device may include a switching power supply, a unidirectional conduction device D1, an energy storage battery, and a first switching circuit K1.
[0054] The positive output terminal P...
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The invention provides a power supply device and a control method and system. The power supply device comprises a switching power supply and a one-way conduction device, wherein the positive electrode of the one-way conduction device is connected with the positive output end of the switching power supply; and the positive output end of the power supply device is connected with the anode of an energy storage battery, and the negative output end is connected with the cathode of the energy storage battery through a first switching circuit. The power supply device can provide electric energy required by normal work for a target object connected with the power supply device, and can also provide charging electric energy for the target object when the target object is in a charging mode; when the target object is in the discharge mode, the energy storage battery absorbs the discharge electric energy of the target object, so that the loss of the switching power supply is reduced. Besides, when the target object is in the discharge mode, the one-way conduction device is in the reverse cut-off state, the switching power supply is prevented from being affected by reverse voltage, reverse voltage stress of the switching power supply is reduced, the stress requirement of the switching power supply is reduced, and finally the cost of the power supply device is reduced.
Description
technical field [0001] The invention belongs to the field of power supply technology, and in particular relates to a power supply device, a control method and a system. Background technique [0002] In many scenarios, the power supply device is required to supply power to the connected object and absorb the electric energy released by the connected object. For example, the connected object is a battery device with a BMS. When the battery device needs to be charged, The power supply unit provides the battery unit with the electrical energy required for charging and the BMS in the battery unit with the electrical energy required for normal operation; when the battery unit needs to be discharged, the power supply unit is required to absorb the electrical energy released by the battery unit. However, current power supply devices cannot meet the above requirements. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide a power su...
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IPC IPC(8): H02J7/34H02M1/34
CPCH02J7/342H02M1/34
Inventor 徐健熊磊陶文玉董普云
Owner SUNGROW POWER SUPPLY CO LTD