CN202331243U

CN202331243U - Novel full-automatic contactless alternating current stabilized-voltage power supply

Info

Publication number: CN202331243U
Application number: CN2011203935188U
Authority: CN
Inventors: 滕敏亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-08
Filing date: 2011-10-08
Publication date: 2012-07-11
Anticipated expiration: 2021-10-08

Abstract

A novel full-automatic contactless alternating current stabilized-voltage power supply is composed of a CPU processor, an input current detecting circuit, an autotransformer, and a thyristor module circuit. The CPU processor is connected with an input voltage detecting circuit, the input current detecting circuit and an output voltage detecting circuit; a branch of an input current sampling circuit detects and samples current signals from the input end of the stabilized-voltage power supply; through current voltage transformation and electron rectification filtration, the detected and sampled current signals are changed into direct current voltage signals proportional to the detected and sampled signals and sent to the CPU processor for processing; and the other branch of the input circuit sampling circuit directly provides reference voltage for a hardware over-current protection circuit. The thyristor module circuit is composed of a thyristor and a driving circuit, and is connected with the CPU processor; after isolation and amplification, control signals sent by the CPU processor control on and off of the thyristor which switches to corresponding coil taps of the autotransformer to regulate voltage. The autotransformer is a tapped autotransformer having the advantages of high efficiency, low consumption and convenience for users to use.

Description

New automatic contactless alternating current steady voltage plug

Technical field:

The utility model relates to a kind of stabilized voltage supply, particularly relates to a kind of new automatic contactless alternating current steady voltage plug, has characteristics such as efficient height, processing speed be fast.

Background technology:

Traditional relay type AC voltage regulator adopts relay contact to come the tap of switching transformer, thereby reaches the purpose of pressure regulation.The relay-type alternating current steady voltage plug is easy to use, is passing under the situation of maintenance cost, and the price of single purchase is relatively low.But the relay-type AC voltage regulator damages the contact of relay the most easily, according to the Life Calculation of relay, on average every two years will all change primary relay.Calculate that according to this follow-up maintenance appropriate litigation fees that the relay voltage stabilizer produces is considerable.

The utility model content:

Technical deficiency to existing the said goods; The purpose of the utility model is to provide a kind of new automatic contactless alternating current steady voltage plug, and it is made up of CPU processor, civil power input circuit, wide-voltage switch power circuit, input voltage detection circuit, input current testing circuit, autotransformer, control silicon modular circuit, voltage stabilizing, bypass manual switch circuit, output voltage detecting circuit, system temperature testing circuit, voltage stabilizing output loop, mode of operation SS, delay switch, LCD/LED display circuit, input current foldback circuit, protection circuit against input over-voltage, row's temperature fan, warning circuit etc.

The utility model solves the technical scheme that its technical matters adopted: the CPU processor links to each other with input voltage detection circuit, input current testing circuit, output voltage detecting circuit, system temperature testing circuit; Described CPU processor is exported corresponding control signal on the one hand and is given thyristor driving circuit, on the LCD/LED display circuit, shows detected data intuitively on the other hand; Input current sample circuit one road detects the sampling current signal from the stabilized voltage supply input end; Through current-voltage conversion; Electronic commutation filtering; Become the d. c. voltage signal that is directly proportional with it and give the CPU processor and handle, another road provides reference voltage directly for the hardware current foldback circuit, and described input current sample circuit adopts high precision current transformer; The silicon controlled module circuit is made up of thyristor and driving circuit; The silicon controlled module circuit connects the CPU processor; The control signal that the CPU processor sends; Through isolate amplifying the conducting and the shutoff of back control thyristor, switch on the corresponding coil tap of autotransformer and carry out pressure regulation, described autotransformer is many taps autotransformer.

The beneficial effect of the utility model is: efficient is high, WV is low, power consumption is little, the life-span is long, be user-friendly to.

Description of drawings

Fig. 1 is the utility model control block scheme;

Fig. 2 is the utility model principle sketch;

1CPU processor among the figure; 2 civil power input circuits; 3 wide-voltage switch power circuits; 4 input voltages detect; 5 input current testing circuits; 6 autotransformers; 7 silicon controlled module circuit; 8 voltage stabilizings; The bypass manual switch circuit; 9 output voltage detecting circuits; 10 system temperature testing circuits; 11 voltage stabilizing output loops; 12 mode of operation SSes; 13 delay switchs; 14 LCD/LED display circuits; 15 input current foldback circuits; 16 protection circuit against input over-voltage; The warm fan of 17 rows; 18 warning circuits

Embodiment

Shown in Fig. 1～2; The utility model provides a kind of new automatic contactless alternating current steady voltage plug, its by CPU processor 1, civil power input circuit 2, wide-voltage switch power circuit 3, input voltage detect the warm fan of electricity 4, input current testing circuit 5, autotransformer 6, silicon controlled module circuit 7, voltage stabilizing, bypass manual switch circuit 8, output voltage detecting circuit 9, system temperature testing circuit 10, voltage stabilizing output loop 11, mode of operation SS 12, delay switch 13, LCD/LED display circuit 14, input current foldback circuit 15, protection circuit against input over-voltage 16, row 17, warning circuit 18 is formed; New automatic contactless alternating current steady voltage plug detects sampling by output voltage detecting circuit 9, input current testing circuit 5, output voltage detecting circuit 9, system temperature testing circuit 10; Giving CPU processor 1 detected data in real time handles; Carry out arithmetical operation and logic determines in CPU processor 1 inside; Export corresponding control signal on the one hand and give thyristor driving circuit, thereby some thyristor is connected, switch on the winding of corresponding adjustable transformer; Realize real-time voltage stabilizing and protection, make the unsettled AC voltage conversion of input become the supply of output stable AC voltage to use electric loading to reach.On LCD/LED display circuit 14, show detected data intuitively on the other hand; Civil power input circuit 2 mainly is that external city is electrically connected on the various treatment circuits of stabilized voltage supply, thereby makes stabilized voltage supply possess the pacing items of work; Wide-voltage switch power circuit 3 is that the wide voltage transformation of interchange with input becomes stable low-voltage dc voltage to offer the circuit such as control panel, display of stabilized voltage supply; Input detecting circuit 4 detects sampling from the mains electricity input end, through electronic commutation filtering, give CPU processor 1 after the analog to digital conversion, for holding circuit reference data is provided by CPU processor 1 control LCD/LED display circuit 14 again; Input current sample circuit 5 adopts high precision current transformers to detect the sampling current signal from the stabilized voltage supply input end, through current-voltage conversion, electronic commutation filtering, becomes the d. c. voltage signal that is directly proportional with it and gives microprocessor CPU and handle.Another road provides reference voltage directly for the hardware current foldback circuit;

This machine uses the magnetic core part of autotransformer 6 to use up-to-date high-quality magnetic core in the present same industry, thus corresponding reduction stabilized voltage supply no-load power consumption, and energy conversion efficiency is high.Transformer Winding adopts the copper material enameled wire of high strength, high-temperature resistant, high insulation, reduces the no-load power consumption of also corresponding minimizing stabilized voltage supply than conventional aluminium enameled wire loss.The winding coil tap increases, and can improve the precision of voltage regulation of power supply; Silicon controlled module circuit 7 mainly is made up of thyristor and driving circuit; The control signal of sending by CPU processor 1; Through isolate amplifying the conducting and the shutoff of back control thyristor, switch on the corresponding coil tap of autotransformer 6 and carry out pressure regulation, coordinate to realize the purpose of reliable voltage stabilizing.

This machine adopts voltage stabilizing, bypass manual switch circuit 8, and air switch is selected in the voltage stabilizing, the bypass that are circumscribed with manual selection, and the user can select powering mode according to actual power program hommization.When manual selection switch was allocated to the voltage stabilizing gear, this stabilized voltage supply just worked in the voltage stabilizing pattern, possessed various defencive functions simultaneously; When manual selection switch was allocated to the bypass gear, this stabilized voltage supply just worked in bypass condition, and is straight-through with civil power; Output voltage detecting circuit detects sampling from the voltage output end of 9 stabilized voltage supplys; Through electronic commutation filtering; Give processor after the analog to digital conversion and participate in computing and logic determines, obtain shows signal and pass to display circuit and control crystalline substance and explain the pipe conducting and realize voltage stabilizing with turn-offing; System temperature testing circuit 10 adopts the high-precision temperature detecting sensor as detector unit, and sensor is close to AC transformer, by the voltage signal that sensor is seen off, handles through giving CPU processor 1 after the analog to digital conversion.When transformer or environment temperature surpass set temperature value, the security of system of processor output protection signal protection stabilized voltage supply.Voltage stabilizing output loop 11 mainly is with the electrical equipment and the equipment that offer the user through the alternating voltage after the stabilized voltage supply voltage stabilizing processing/bypass.

Simultaneously; This machine adopts mode of operation SS 12, has relevant work patterns such as multiple start, control, protection, after stabilized voltage supply starts; CPU processor 1 detects judgement through the user to set information to the mode of operation switch, again ordered control each several part circuit working.Delay switch 13 to special electrical equipment, equipment, is unallowed like electrical equipment such as air-conditioning, refrigerator, refrigerators to higher requirement is arranged start-up time when the intermittent outage of input civil power! This machine CPU processor 1 is through detecting the time set of user to delay switch; Pass through accurate calculating, processing again; Provide corresponding time delay of control signal at last, go controlling output circuit, in order to special electrical equipment, the equipment of protection having higher requirements start-up time.LCD/LED display circuit 14 is to light the LCD/LED display screen on the one hand, is the various current datas that show stabilized voltage supply on the other hand, is convenient to the duty that the user in time understands stabilized voltage supply.The input current foldback circuit 15 overweight when load, when electric current is excessive; Current signal after current detection circuit is handled adds to gives CPU processor 1 after current foldback circuit is handled; See control signal off by CPU processor 1 again; Controlling output circuit is turn-offed output voltage, realizes overcurrent protection, and sees demonstration and sound alarm control signal off by CPU processor 1.

Consumer and the stabilized voltage supply inherently safe of protection circuit against input over-voltage 16 in order to protect the user; CPU processor 1 receives the data of mains input voltage testing circuit in real time; When stabilized voltage supply input civil power is higher than AC275V, import the input higher limit that civil power is higher than stabilized voltage supply this moment, 1 control of CPU processor is turn-offed all crystalline substances and is explained pipe; Make autotransformer 6 break off input circuit 2, thereby reach protection voltage stabilizer and consumer purpose of safety.Arrange warm fan 17 when load increases the weight of, electric current increases, operating ambient temperature is too high or radiating effect when bad, system temperature will raise relatively.When temperature sensing circuit detected the uniform temperature value, internal processor will be controlled the cool but circuit start of air draft cooling fan, the heat radiation of help system row temperature.When warning circuit 18 detects various unusual condition when the CPU of stabilized voltage supply processor 1, send warning information immediately, drive the hummer alarm, give LCD/LED display with information simultaneously, so that remind the timely handling failure of user.

Claims

1. new automatic contactless alternating current steady voltage plug; It is made up of civil power input circuit, wide-voltage switch power circuit, input voltage detection circuit, voltage stabilizing, bypass manual switch circuit, output voltage detecting circuit, system temperature testing circuit, voltage stabilizing output loop, mode of operation SS, delay switch, LCD/LED display circuit, input current foldback circuit, protection circuit against input over-voltage, row's temperature fan, warning circuit, and it is characterized in that: the CPU processor links to each other with input voltage detection circuit, input current testing circuit, output voltage detecting circuit, system temperature testing circuit; Input current sample circuit one road detects the sampling current signal from the stabilized voltage supply input end; Through current-voltage conversion; Electronic commutation filtering becomes the d. c. voltage signal that is directly proportional with it and gives the CPU processor and handle, and another road provides reference voltage directly for the hardware current foldback circuit; The silicon controlled module circuit is made up of thyristor and driving circuit; The silicon controlled module circuit connects the CPU processor; The control signal that the CPU processor sends through isolate amplifying the conducting and the shutoff of back control thyristor, switching on the corresponding coil tap of autotransformer and carrying out pressure regulation.

2. new automatic contactless alternating current steady voltage plug as claimed in claim 1; It is characterized in that: described CPU processor is exported corresponding control signal on the one hand and is given thyristor driving circuit, on the LCD/LED display circuit, shows detected data intuitively on the other hand.

3. new automatic contactless alternating current steady voltage plug as claimed in claim 1 is characterized in that: described input current sample circuit adopts high precision current transformer.

4. new automatic contactless alternating current steady voltage plug as claimed in claim 1 is characterized in that: described autotransformer is many taps autotransformer.