CN206164360U - Starting circuit is deceived to induction electricity -taking power - Google Patents

Abstract

The embodiment of the utility model discloses starting circuit is deceived to induction electricity -taking power, set up the multivibrator module that is used for enlargeing the electric current between the gate pole control end through end of the DC voltage output at rectifier module and rectifier module, thereby can start the induction electricity -taking power under the very little condition of former limit electric current, guaranteed that it can have very wide working range to get the power, prior art has been solved when the supply voltage is resumeed to the failure interruption accident, it does not have the gate pulse to generate and then can not start rectifier module's technical problem to get the electric installation. The embodiment of the utility model provides an include: get electric boost module, rectifier module, filtering voltage stabilizing module, connect rectifier module's DC voltage output end with the multivibrator module of electric current is enlargied to being used for between rectifier module's the gate pole control end.

Description

One kind sensing power taking power supply black starting-up circuit

Technical field

The utility model is related to sense power taking field, more particularly to a kind of sensing power taking power supply black starting-up circuit.

Background technology

With the continuous lifting of power industry level, the on-line monitoring equipment being operated on electric line is more and more. When monitoring on-line to transmission line of electricity, the supply of its power supply is one of key issue.Power system on-line monitoring equipment is most normal Power supply mode is that induction energy fetching is powered, and which passes through to take the energy that energy magnetic core is gathered in circuit peripheral electromagnetic field, then leads to The AC signal of secondary side is converted to stable direct current signal by over commutation translation circuit, is that microprocessor and communication unit are supplied Electricity.

Switching process in existing sensing way to take power is realized by the break-make of controlling transistor, and controls crystal The DC voltage that the pulse signal of pipe is exported directly from circuit itself.

However, prior art has certain defect, be exactly by the circuit of power taking in actual motion even faulty power failure thing Therefore, if electricity getting device requires to start immediately under failure condition, but because former limit does not have electric current, would not there is DC voltage Output；If recovering power supply supply after a period of time, because now do not have gating pulse generating, crystal cannot be controlled Pipe is switched on-off, and rectification module would not start.

Utility model content

The utility model embodiment discloses a kind of sensing power taking power supply black starting-up circuit, by the direct current in rectification module It is provided for amplifying the multivibrator module of electric current between voltage output end and the gate pole control end of rectification module, such that it is able to Start feeling answers power taking power supply in the case of primary current very little, it is ensured that power taking power supply can have very wide working range, solves In fault outage accident recovery power supply for seasonable, electricity getting device does not have gating pulse to generate and then can not start whole to prior art The technical problem of flow module.

The utility model embodiment provides a kind of sensing power taking power supply black starting-up circuit, including：Power taking boost module and Filtering voltage regulation module that the rectification module and the rectification module that the power taking boost module is electrically connected with is electrically connected with, also wrap Include be connected between the DC voltage output end of the rectification module and the gate pole control end of the rectification module for amplifying The multivibrator module of electric current.

Alternatively,

The multivibrator module specifically include amplifier M, first resistor R1, second resistance R2,3rd resistor R3, Four resistance R4, the 5th resistance Rg, the first electric capacity C0；

One end of first resistor R1 connects the positive input of the amplifier M, and the first resistor R1 other end connects Connect the DC voltage output end of the rectification module；

One end of second resistance R2 connects the positive input of the amplifier M, the other end of second resistance R2 Ground connection；

One end of 3rd resistor R3 connects the positive input of the amplifier M, the other end of 3rd resistor R3 Connect the output of the amplifier M；

One end of the 4th resistance R4 connects the negative sense input of the amplifier M, the other end of the 4th resistance R4 The one end for connecting output the first electric capacity C0 of the amplifier M connects the negative sense input of the amplifier M, another termination Ground；

One end of the 5th resistance Rg connects the output of the amplifier M, the other end connection of the 5th resistance Rg The gate pole control end of the rectification module.

Alternatively,

The power taking boost module is specifically included：Being socketed in taking on high-tension line can transformer TA1, step-up transformer TA2；

The secondary side for taking energy transformer TA1 connects the primary side of the step-up transformer TA2；

The secondary side of the step-up transformer TA2 connects the rectification module.

Alternatively,

The filtering voltage regulation module specifically includes the second electric capacity C1 and Zener diode Z for being connected in parallel on the rectification module.

As can be seen from the above technical solutions, the utility model embodiment has advantages below：

1st, the utility model embodiment is controlled by the gate pole of the DC voltage output end in rectification module and rectification module It is provided for amplifying the multivibrator module of electric current between end, should such that it is able to the start feeling in the case of primary current very little Power taking power supply, it is ensured that power taking power supply can have very wide working range, solves prior art in fault outage accident recovery electricity Source is not at once, electricity getting device has gating pulse to generate and then can not start the technical problem of rectification module.

2nd, the present embodiment can pass through the parameter for adjusting resistance and electric capacity in multivibrator module, can adjust output signal Dutycycle, that is, the gating pulse for adjusting push-pull circuit, it is ensured that direct voltage output it is constant.

3rd, the second electric capacity C1 serves the effect of filtering, and Zener diode Z ensures that voltage maintains rectification module electronics unit In the safe operating range of part, it is ensured that the stability of system.

Description of the drawings

In order to be illustrated more clearly that the utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only It is some embodiments of the present utility model, for those of ordinary skill in the art, before creative labor is not paid Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.

Fig. 1 is a kind of circuit diagram of the sensing power taking power supply black starting-up circuit provided in the utility model embodiment；

Fig. 2 is a kind of regulation multi-harmonic-oscillations of the sensing power taking power supply black starting-up circuit provided in the utility model embodiment The circuit diagram of device module.

Specific embodiment

The utility model embodiment discloses a kind of sensing power taking power supply black starting-up circuit, by the direct current in rectification module It is provided for amplifying the multivibrator module of electric current between voltage output end and the gate pole control end of rectification module, such that it is able to Start feeling answers power taking power supply in the case of primary current very little, it is ensured that power taking power supply can have very wide working range, solves In fault outage accident recovery power supply for seasonable, electricity getting device does not have gating pulse to generate and then can not start whole to prior art The technical problem of flow module.

Fig. 1 to Fig. 2 is referred to, the one of a kind of sensing power taking power supply black starting-up circuit provided in the utility model embodiment Individual embodiment includes：The rectification module and rectification module that power taking boost module and power taking boost module are electrically connected with is electrically connected with Filtering voltage regulation module, be connected to being used between the DC voltage output end of rectification module and the gate pole control end of rectification module Amplify the multivibrator module of electric current, it should be noted that aforementioned gate pole control end is not to refer in particular to the gate pole of IGCT, also may be used To represent the grid of metal-oxide-semiconductor.

Multivibrator module specifically includes amplifier M, first resistor R1, second resistance R2,3rd resistor R3, the 4th electric Resistance R4, the 5th resistance Rg, the first electric capacity C0；

The positive input of one end connection amplifier M of first resistor R1, first resistor R1 other end connection rectification module DC voltage output end；

The positive input of one end connection amplifier M of second resistance R2, the other end ground connection of second resistance R2；

The positive input of one end connection amplifier M of 3rd resistor R3, the other end connection amplifier M's of 3rd resistor R3 Output；

The negative sense input of one end connection amplifier M of the 4th resistance R4, the other end connection amplifier M's of the 4th resistance R4 Export the negative sense input of one end connection amplifier M of the first electric capacity C0, other end ground connection；

One end of 5th resistance Rg connects the output of amplifier M, and the other end of the 5th resistance Rg connects the door of rectification module Pole control end, will amplifier M output as gate-control signal；

Multivibrator module produces direct current biasing and believes as gating pulse by positive feedback effect, under the input of very little Number, control the break-make of push-pull circuit；

First resistor R1 is equal with second resistance R2 resistance in multivibrator module, 3rd resistor R3 and the 4th resistance R4 Resistance is equal, by controlling the resistance of amplifier connection and the parameter of electric capacity, can adjust the dutycycle of output signal, that is, adjusts The gating pulse of section push-pull circuit, it is ensured that direct voltage output it is constant, such that it is able to guarantee circuit in less power supply Supply is lower to be started, and realizes the function of " black starting-up ".

Power taking boost module is specifically included：Being socketed in taking on high-tension line can transformer TA1, step-up transformer TA2；

The secondary side for taking the primary side step-up transformer TA2 of the secondary side connection step-up transformer TA2 of energy transformer TA1 connects Connect rectification module.

Filtering voltage regulation module specifically includes the second electric capacity C1 and Zener diode Z for being connected in parallel on rectification module, the second electric capacity C1 completes filter action, and Zener diode Z ensures that voltage is maintained in the safe operating range of rectification module electronic component, it is ensured that The stability of system.

The above is the detailed description that structure and connected mode to a kind of sensing power taking power supply black starting-up circuit are carried out, and is just In understanding, a kind of application of sensing power taking power supply black starting-up circuit will be illustrated with a concrete application scene below, applied Example includes：

Fig. 1 to Fig. 2 is referred to, when in through the high voltage transmission line for taking energy transformer TA1 by electric current, due to electromagnetism sense Should act on, induced-current is produced in electricity taking coil, the boosted transformer TA2 boostings of the induced-current produced in electricity taking coil will Voltage is brought up on the forward threshold voltage of the switching tube of rectification module.

The output end of the amplifier M of multivibrator module connects the gate pole control end of rectification module, by positive feedback certainly Induced Oscillation, produces direct current biasing as gate pulse signals, as the control Pulse Width Control of rectification module under the input of very little The break-make of push-pull circuit.First resistor R1 is equal with second resistance R2 resistance in multivibrator module, 3rd resistor R3 and Four resistance R4 resistances are equal, by controlling the resistance of amplifier connection and the parameter of electric capacity, can adjust the dutycycle of output signal, Namely adjust the gating pulse of push-pull circuit, it is ensured that direct voltage output it is constant, such that it is able to guarantee circuit compared with The lower function of starting, realize " black starting-up " of little power supply supply, primary current that should be minimum in use-case is 60A.

During rectification module discharge and recharge, inductance and the leakage inductance conduct of step-up transformer TA2 of energy transformer TA1 is taken Energy-storage travelling wave tube.

Second electric capacity C1 of filtering voltage regulation module completes filter action, and Zener diode Z ensures that voltage maintains rectification mould In the safe operating range of block electronic component, it is ensured that the stability of system, should be in use-case, stable 3.3V DC voltages be most Load-side is transported to eventually.

A kind of sensing power taking power supply black starting-up circuit provided by the utility model is described in detail above, for One of ordinary skill in the art, the thought of foundation the utility model embodiment, in specific embodiments and applications Will change, in sum, this specification content should not be construed as to restriction of the present utility model.

Claims (4)

1. it is a kind of to sense power taking power supply black starting-up circuit, including：Power taking boost module and the power taking boost module are electrically connected with Rectification module and the rectification module be electrically connected with filtering voltage regulation module, it is characterised in that it is also described whole including being connected to The multi-harmonic-oscillations for amplifying electric current between the DC voltage output end of flow module and the gate pole control end of the rectification module Device module.

2. it is according to claim 1 to sense power taking power supply black starting-up circuit, it is characterised in that the multivibrator module Specifically include amplifier M, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance Rg, first electric Hold C0；

One end of first resistor R1 connects the positive input of the amplifier M, and the first resistor R1 other end connects institute State the DC voltage output end of rectification module；

One end of second resistance R2 connects the positive input of the amplifier M, the other end ground connection of second resistance R2；

One end of 3rd resistor R3 connects the positive input of the amplifier M, the other end connection of 3rd resistor R3 The output of the amplifier M；

One end of the 4th resistance R4 connects the negative sense input of the amplifier M, the other end connection of the 4th resistance R4 One end of output the first electric capacity C0 of the amplifier M connects the negative sense input of the amplifier M, other end ground connection；

One end of the 5th resistance Rg connects the output of the amplifier M, and the other end connection of the 5th resistance Rg is described The gate pole control end of rectification module.

3. it is according to claim 1 to sense power taking power supply black starting-up circuit, it is characterised in that the power taking boost module tool Body includes：Being socketed in taking on high-tension line can transformer TA1, step-up transformer TA2；

The secondary side for taking energy transformer TA1 connects the primary side of the step-up transformer TA2；

The secondary side of the step-up transformer TA2 connects the rectification module.

4. it is according to claim 1 to sense power taking power supply black starting-up circuit, it is characterised in that the filtering voltage regulation module tool Body includes being connected in parallel on the second electric capacity C1 and Zener diode Z of the rectification module.