A motor power supply with soft start and overcurrent protection
A technology of overcurrent protection and motor power supply, applied in emergency protection circuit devices, emergency power supply arrangements, electrical components, etc., can solve the problems of DC motor burnout, single function, complex structure, etc., and achieve stable performance, convenient use, and protective effect Good results
Inactive Publication Date: 2019-08-13
保定博为泓翔电气有限公司
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Problems solved by technology
[0002] Due to the advantages of uniform running speed and good mechanical strength, DC motors are widely used in various mechanical equipment and power components of household appliances. Common applications include electric fans, ceiling fans, generators, etc. Currently, DC motor circuits commonly used in the market are mostly The structure is complex, the function is single, and the DC motor is easy to burn out due to overcurrent, resulting in economic losses, so it needs to be improved
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0017] see Figure 1-3 , a motor power supply with soft start and overcurrent protection functions, including a power supply part circuit, a power-on protection delay circuit, a current detection circuit, a protection control circuit and a motor; the power supply part circuit is respectively connected to a power-on protection delay circuit, a current The detection circuit, the protection control circuit and the motor, the power-on protection delay circuit are ...
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The invention discloses a motor power supply with soft starting and overcurrent protection functions. The motor power supply comprises a power supplying part circuit, a starting protection time-delaycircuit, a current detection circuit, a protection control circuit and a motor. The power supplying part circuit is connected with the starting protection time-delay circuit, the current detection circuit, the protection control circuit and the motor. The starting protection time-delay circuit is connected with the current detection circuit. The current detection circuit is further connected withthe protection control circuit. The protection control circuit is further connected with the motor. The motor power supply with the soft starting and overcurrent protection functions has the double-power-supply function so as to meet continuous operation of the motor, and the overcurrent protection function of the direct-current motor is achieved by utilizing a logic gate controller to be combinedwith a relay; and meanwhile, the anti-interference function is further achieved, and therefore the advantages of stable performance, convenient use and good protection effect are achieved.
Description
technical field [0001] The invention relates to a motor circuit, in particular to a motor power supply with soft start and overcurrent protection functions. Background technique [0002] Due to the advantages of uniform running speed and good mechanical strength, DC motors are widely used in various mechanical equipment and power components of household appliances. Common applications include electric fans, ceiling fans, generators, etc. Currently, DC motor circuits commonly used in the market are mostly The structure is complex, the function is single, and the DC motor is easy to burn out due to overcurrent, resulting in economic losses, so it needs to be improved. Contents of the invention [0003] The object of the present invention is to provide a motor power supply with functions of soft start and overcurrent protection, so as to solve the problems raised in the above background technology. [0004] To achieve the above object, the present invention provides the foll...
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IPC IPC(8): H02H7/085H02J9/06
CPCH02H7/085H02J9/061
Inventor 郑辉
Owner 保定博为泓翔电气有限公司