CN203434867U

CN203434867U - Switching power supply with output selection function

Info

Publication number: CN203434867U
Application number: CN201320572501.8U
Authority: CN
Inventors: 徐文丹; 吴耀军
Original assignee: Individual
Current assignee: SHENZHEN FLYPOWER TECHNOLOGY Co Ltd
Priority date: 2013-09-16
Filing date: 2013-09-16
Publication date: 2014-02-12
Anticipated expiration: 2023-09-16

Abstract

Disclosed in the utility model is a switching power supply with the output selection function. The switching power supply consists of an input rectifier filter circuit, a transformer, an output rectifier filter circuit and a PWM control circuit. In addition, a current distributor, at least two output ports, and an output selection module are also arranged, wherein the current distributor and at least two output ports are connected with the output rectifier filter circuit and the output selection module is connected with the current distributor and all the output ports; and corresponding output selection switching buttons are arranged at the surface of the output selection module by a corresponding way. Because the selection switching buttons are used for operating the output selection module so as to select different output ports; and the current distributor divides the current into two paths of currents or more than two paths of currents according to arrangement, so that the output selection module can carry out selection conveniently. Therefore, the provided switching power supply can be operated simply and used conveniently.

Description

A kind of Switching Power Supply of selecting with output

Technical field

The utility model relates to Switching Power Supply, a kind of Switching Power Supply of selecting with output relating in particular to.

Background technology

In prior art, Switching Power Supply is all generally by input current, stable output, meets the higher electric current of quality of equipment requirement, and existing switch power supply equipment generally all only has an output port, can not meet the demand of many output ports.

Therefore, there is defect in prior art, needs to improve.

Utility model content

Technical problem to be solved in the utility model is: provide a kind of and can select the size of output current according to actual needs, the Switching Power Supply that band output easy to use is selected.

The technical solution of the utility model is as follows: a kind of Switching Power Supply of selecting with output, comprise the input rectifying filter circuit, transformer, output rectifier and filter and the pwm control circuit that are arranged on pcb board, on described pcb board, also arrange and be connected distributing switch, at least two output ports with described output rectifier and filter, and module is selected in the output being connected with described distributing switch, each output port; Module is selected in corresponding described output, and its surface arranges corresponding output selector switch button.

Be applied to technique scheme, in described Switching Power Supply, at least two Voltage-output group buttons of described output selector switch button setting.

Adopt such scheme, the utility model is connected distributing switch, at least two output ports by arranging with described output rectifier and filter, and module is selected in the output being connected with described distributing switch, each output port; Module is selected in corresponding described output, described Switching Power Supply surface arranges corresponding output selector switch button, so, by the output of selector switch push-botton operation, select module, select different output ports, distributing switch becomes two-way by current distributing or more than two-way according to arranging, to facilitate described output to select module to select, simple to operate, easy to use.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.

The present embodiment provides a kind of Switching Power Supply of selecting with output, and described Switching Power Supply can be selected the size of output current according to actual needs, easy to use.

As shown in Figure 1, Switching Power Supply comprises input rectifying filter circuit, transformer, output rectifier and filter and the pwm control circuit being arranged on pcb board, the electric current of input is undertaken after rectification and filtering by input rectifying filter circuit, transfer in transformer, transformer carries out transformation processing to it, and by exporting after output rectifier and filter rectification and filtering, pwm control circuit one end is connected with the output of output rectifier and filter, the other end is connected with described transformer, by pwm control circuit, carrys out pulse modulation output current.

And, on the described pcb board of Switching Power Supply, also arrange and be connected distributing switch, two or more output port with output rectifier and filter, each output port is connected with distributing switch, the electric current of exporting by output rectifier and filter is distributed into two-way by distributing switch or more than two-way, and export by corresponding output port, wherein, the size that each road electric current distributes, according to distributing switch, pre-set and distribute, with practical requirement.

And, module is selected in the output that also setting is connected with distributing switch, each output port, output selects module to control by corresponding output selector switch button is set on Switching Power Supply surface, module is selected in output selector switch button control output, output selects module to select an output port output current, or, select a plurality of output ports output current simultaneously.

And described output selector switch button arranges two or more Voltage-output group buttons, by different Voltage-output group buttons, select output port, the electric current of the corresponding corresponding voltage arranging of output port output, simple to operate, easy to use.

These are only preferred embodiment of the present utility model, be not limited to the utility model, all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.

Claims

1. a Switching Power Supply of selecting with output, comprises the input rectifying filter circuit, transformer, output rectifier and filter and the pwm control circuit that are separately positioned on pcb board, it is characterized in that:

On described pcb board, also arrange and be connected distributing switch, at least two output ports with described output rectifier and filter, and module is selected in the output being connected with described distributing switch, each output port;

Module is selected in corresponding described output, and described Switching Power Supply surface arranges corresponding output selector switch button.

2. Switching Power Supply according to claim 1, is characterized in that, at least two Voltage-output group buttons of described output selector switch button setting.