CN105898901A - Automatic opening and closing type control system for bath heater based on transistor switch buffer circuit - Google Patents
Automatic opening and closing type control system for bath heater based on transistor switch buffer circuit Download PDFInfo
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- CN105898901A CN105898901A CN201610399213.5A CN201610399213A CN105898901A CN 105898901 A CN105898901 A CN 105898901A CN 201610399213 A CN201610399213 A CN 201610399213A CN 105898901 A CN105898901 A CN 105898901A
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- pole
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- resistance
- polar capacitor
- negative pole
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B1/00—Details of electric heating devices
- H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
- H05B1/0227—Applications
- H05B1/0252—Domestic applications
- H05B1/0275—Heating of spaces, e.g. rooms, wardrobes
- H05B1/0277—Electric radiators
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Abstract
The invention discloses an automatic opening and closing type control system for a bath heater based on a transistor switch buffer circuit. The automatic opening and closing type control system is characterized in that the control system mainly consists of a control chip U, a temperature controller, a triode VT2, a polar capacitor C5, a polar capacitor C4, a voltage-stabilizing diode D3, a base electrode driving circuit, a triode voltage-stabilizing circuit serially connected between the transistor switch buffer circuit and an RC pin of the control chip U, and a current regulating circuit serially connected between an FB pin of the control chip U and the base electrode driving circuit. The control system can control the temperature of warming lamps of the bath heater, namely the control system can control the on and off of the working current of the bath heater, so that the control system can control the temperature of the bath heater. Moreover, the control system can inhibit instant high current of input current, so that the current keeps stable, the control system can output stable driving current, and the heating temperature stability of the bath heater is guaranteed.
Description
Technical field
The present invention relates to electronic applications, specifically, be a kind of based on transistor switch buffer circuit certainly open
Enclosed super bath control system.
Background technology
Super bath is fast with its heating, environmental protection, the feature such as easy to use, extensively received by people and use.
But, the temperature of super bath can not be controlled by the control system of the super bath that current people use, and causes bathroom
Interior temperature is the most too high, thus causes people using super bath the situation of anoxia because of high temperature often occur.With
Time, the control system of existing super bath there is also the problem that output driving current is unstable, causes the warm of super bath
The heating-up temperature of lamp is unstable, thus have impact on the service life of the warm lamp of super bath.
The temperature of super bath can be controlled therefore it provides a kind of, can ensure that again the driving stream that output is stable
Super bath control system be the task of top priority.
Summary of the invention
The temperature of super bath can not be entered by the control system that it is an object of the invention to overcome super bath of the prior art
Row controls, and there is the defect that output driving current is unstable simultaneously, it is provided that one delay based on transistor switch
Rush circuit from open-close type super bath control system.
The present invention is achieved through the following technical solutions: a kind of based on transistor switch buffer circuit from opening and closing
Formula super bath control system, mainly by control chip U, temperature controller, audion VT2, negative pole is through resistance R9
Afterwards the colelctor electrode with audion VT2 be connected, positive pole after resistance R6 with the COV pin of control chip U
The polar capacitor C5 being connected, positive pole RC pin with control chip U after resistance R5 is connected, negative
Polar capacitor C4, the N pole that pole is connected with the FB pin of control chip U and the VDD of control chip U
The Zener diode that pin is connected, P pole is connected with the RC pin of control chip U after resistance R8
D3, the transistor switch buffer circuit being serially connected between temperature controller and control chip U, it is serially connected in transistor and opens
Close the audion mu balanced circuit between buffer circuit and the RC pin of control chip U, with control chip U phase
The base drive circuit connected, and be serially connected between FB pin and the base drive circuit of control chip U
Matrix current adjustment circuit composition;The VDD pin of described control chip U is connected with the base stage of audion VT2
Connect, its GND pin ground connection;The emitter stage of described audion VT2 is connected with base drive circuit.
Described audion mu balanced circuit is by audion VT8, audion VT6, audion VT7, N pole and three
The base stage of pole pipe VT8 is connected, N pole as the input of audion mu balanced circuit and is delayed with transistor switch
Rushing the Zener diode D9 that circuit is connected, positive pole is connected with the P pole of Zener diode D9, negative pole connects
The polar capacitor C14 on ground, positive pole emitter stage with audion VT8 after resistance R28 is connected, negative pole warp
The polar capacitor C13 being connected with the P pole of Zener diode D9 after resistance R27, one end and polar capacitor
The negative pole of C13 is connected, resistance R26, the N pole of other end ground connection is connected with the base stage of audion VT6,
Diode D10, N pole that P pole emitter stage with audion VT8 after resistance R29 is connected and audion
The Zener diode D11 that the colelctor electrode of VT7 is connected, P pole is connected with the emitter stage of audion VT6,
One end is connected with the emitter stage of audion VT6, the other end is adjustable with what the base stage of audion VT7 was connected
Resistance R32, positive pole is connected with the emitter stage of audion VT7, negative pole after resistance R33 with audion VT6
The polar capacitor C17 that is connected of colelctor electrode, positive pole is connected with the colelctor electrode of audion VT6, negative pole connects
The polar capacitor C16 on ground, and positive pole negative pole with polar capacitor C16 after resistance R31 be connected, negative
The polar capacitor C15 composition that pole colelctor electrode with audion VT8 after resistance R30 is connected;Described polarity
The negative pole of electric capacity C15 and the equal ground connection of negative pole of polar capacitor C17;The P pole of described Zener diode D11 with
The positive pole of polar capacitor C13 is connected;The RC pipe of the colelctor electrode of described audion VT7 and control chip U
Foot is connected.
Described matrix current adjustment circuit is by amplifier P1, amplifier P2, amplifier P3, audion VT5, just
Pole positive pole with amplifier P1 after resistance R16 is connected, P pole as matrix current adjustment circuit input also
The diode D6 being connected with the FB pin of control chip U, positive pole after resistance R17 with amplifier P1
The polar capacitor C9 that negative pole is connected, negative pole colelctor electrode with audion VT5 after resistance R18 is connected,
P pole is connected with the outfan of amplifier P1, be connected with the positive pole of polar capacitor C9 after the inductance L2 of N pole
Diode D7, negative pole positive pole with amplifier P3 after resistance R23 is connected, positive pole and amplifier P1
Polar capacitor C10, the P pole that is connected of outfan after adjustable resistance R19 with the negative pole phase of amplifier P2
The diode D8 that connection, N pole are connected with the emitter stage of audion VT5, one end is negative with amplifier P3's
Pole is connected, the resistance R21 of other end ground connection, and negative pole positive pole with amplifier P2 after resistance R25 is connected
The polar capacitor C11 connecing, being connected with the outfan of amplifier P2 after positive electrode resistance R24, positive pole and polarity
The pole that the positive pole of electric capacity C11 is connected, negative pole emitter stage with audion VT5 after resistance R20 is connected
Property electric capacity C12, and one end is connected with the outfan of amplifier P3, the other end is as matrix current adjustment circuit
Outfan and be connected with base drive circuit resistance R22 composition;The negative pole of described polar capacitor C10
It is connected with the negative pole of amplifier P2;The base stage of described audion VT5 is connected with the N pole of diode D7.
Described transistor switch buffer circuit is by field effect transistor MOS1, field effect transistor MOS2, audion
VT1, one end is connected with the grid of field effect transistor MOS1, the resistance R1 of other end ground connection, negative pole and three
The polar capacitor C1 that the base stage of pole pipe VT1 is connected, positive pole is connected with the source electrode of field effect transistor MOS1,
One end is connected with the emitter stage of audion VT1, the other end is connected with the source electrode of field effect transistor MOS1
The drain electrode with field effect transistor MOS2 after resistance R3 of resistance R2, N pole is connected, P pole and audion VT1
The diode D1 that is connected of colelctor electrode, positive pole is connected with the N pole of diode D1, negative pole and field effect
Polar capacitor C2, the P pole that the drain electrode of pipe MOS2 is connected is connected with the source electrode with field effect transistor MOS2,
The diode D2 that N pole is connected with the drain electrode of field effect transistor MOS2, and positive pole after resistance R4 with field
The source electrode of effect pipe MOS2 is connected, negative pole SS pin with control chip U after resistance R7 is connected
Polar capacitor C3 composition;The grounded drain of described field effect transistor MOS1;Described field effect transistor MOS2
Grid be connected with the N pole of diode D1, its drain electrode respectively with FB pin and the base of control chip U
Pole drive circuit is connected;The grid of described field effect transistor MOS1 is connected with temperature controller;Described audion
The emitter stage of VT1 is connected with the P pole of Zener diode D9;The emitter stage conduct of described audion VT1
The input of transistor switch buffer circuit.
Described base drive circuit by audion VT3, audion VT4, N pole after resistance R12 with three poles
The diode D4 that the base stage of pipe VT3 is connected, P pole is connected with the ISNS pin of control chip U, just
Pole emitter stage with audion VT3 after resistance R13 is connected, the emitter stage phase of negative pole and audion VT4
The polar capacitor C6 connected, one end is connected with the base stage of audion VT4, the other end and control chip U
The resistance R10 that is connected of ORV pin, positive pole after resistance R14 with the colelctor electrode phase of audion VT4
Connect, the polar capacitor C7 of minus earth, one end is connected with the negative pole of polar capacitor C7, the other end and
Resistance R11, the P pole that the emitter stage of audion VT2 is connected is connected with the emitter stage of audion VT3,
The diode D5 that N pole negative pole with polar capacitor C7 after resistance R15 is connected, and positive pole is through inductance
After L1, the colelctor electrode with audion VT4 is connected, negative pole is collectively forming base stage with the negative pole of polar capacitor C7
The polar capacitor C8 composition of the outfan of drive circuit;The colelctor electrode of described audion VT3 and control chip U
VDD pin be connected;The negative pole of described polar capacitor C7 defeated with amplifier P3 after resistance R22
Go out end to be connected.
For the practical effect of the present invention, described control chip U the most preferentially uses TPS402000 collection
Chip is become to realize.
The present invention compared with prior art, has the following advantages and beneficial effect:
(1) temperature of the warm lamp of super bath can be controlled by the present invention, i.e. the present invention can be to super bath operating current
Break-make be controlled, make super bath can set at a temperature of realize automatically turn on and close, ensure that
The temperature of super bath can be controlled by the present invention, is effectively prevented the situation of people's anoxia because of high temperature;With
Time, the instantaneous high current of input current can be suppressed, make electric current held stationary, make invention energy by the present invention
Export stable driving electric current, ensure that the stability of super bath heating-up temperature.
(2) present invention can carry out real-time sampling to voltage, and can carry out negative feedback with sampled voltage, to output
Being dynamically adjusted and pressure drop of electric current, ensure that the present invention can export stable electric current.
(3) the control chip U of the present invention the most preferentially uses the integrated chip of TPS402000 to realize, this control
Coremaking sheet U has the function such as overtemperature protection, over-voltage over-current protection, and this chip combines with peripheral circuit can be had
Being adjusted output electric current of effect, enables the invention to export stable driving electric current, ensures that this
Bright can provide stable operating current for super bath, make the warm lamp heating-up temperature of super bath keep stable.
(4) present invention can export stable electric current, thus the present invention can effectively extend the making of warm lamp of super bath
Use the life-span.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the present invention.
Fig. 2 is the electrical block diagram of the matrix current adjustment circuit of the present invention.
Fig. 3 is the electrical block diagram of the audion mu balanced circuit of the present invention.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is described in further detail, but the enforcement of the present invention
Mode is not limited to this.
Embodiment
As it is shown in figure 1, the present invention is mainly by control chip U, temperature controller, audion VT2, resistance R5,
Resistance R6, resistance R8, resistance R9, polar capacitor C4, polar capacitor C5, Zener diode D3, three
Pole pipe mu balanced circuit, matrix current adjustment circuit, transistor switch buffer circuit, and base drive circuit composition.
During enforcement, the negative pole of polar capacitor C5 colelctor electrode with audion VT2 after resistance R9 is connected,
Its positive pole COV pin with control chip U after resistance R6 is connected.The positive pole warp of polar capacitor C4
After resistance R5 the RC pin with control chip U be connected, the FB pin phase of its negative pole and control chip U
Connect.The N pole of Zener diode D3 is connected with the VDD pin of control chip U, its P pole is through resistance
After R8, the RC pin with control chip U is connected.Audion mu balanced circuit is serially connected in transistor switch buffering
Between the RC pin of circuit and control chip U.Matrix current adjustment circuit is serially connected in the FB of control chip U
Between pin and base drive circuit.Transistor switch buffer circuit be serially connected in temperature controller and control chip U
Between.Base drive circuit is connected with control chip U.
The VDD pin of described control chip U is connected with the base stage of audion VT2, its GND pin
Ground connection;The emitter stage of described audion VT2 is connected with base drive circuit.
Further, described transistor switch buffer circuit by field effect transistor MOS1, field effect transistor MOS2,
Audion VT1, resistance R1, resistance R2, resistance R3, resistance R4, resistance R7, polar capacitor C1,
Polar capacitor C2, polar capacitor C3, diode D1, and diode D2 form.
During connection, one end of resistance R1 is connected with the grid of field effect transistor MOS1, its other end ground connection.
The negative pole of polar capacitor C1 is connected with the base stage of audion VT1, its positive pole and field effect transistor MOS1
Source electrode is connected.One end of resistance R2 is connected with the emitter stage of audion VT1, its other end is imitated with field
Should the source electrode of pipe MOS1 be connected.The N pole of diode D1 after resistance R3 with field effect transistor MOS2
Drain electrode be connected, its P pole is connected with the colelctor electrode of audion VT1.
Meanwhile, the positive pole of polar capacitor C2 be connected with the N pole of diode D1, its negative pole and field effect
The drain electrode of pipe MOS2 is connected.The P pole of diode D2 is connected with the source electrode with field effect transistor MOS2,
Its N pole is connected with the drain electrode of field effect transistor MOS2.The positive pole of polar capacitor C3 after resistance R4 with field
The source electrode of effect pipe MOS2 is connected, its negative pole SS pin with control chip U after resistance R7 is connected
Connect.
The grounded drain of described field effect transistor MOS1;The grid of described field effect transistor MOS2 and diode
The N pole of D1 is connected, its drain electrode is connected with FB pin and the base drive circuit of control chip U respectively
Connect;The grid of described field effect transistor MOS1 is connected with temperature controller;The emitter stage of described audion VT1 with
The P pole of Zener diode D9 is connected;The emitter stage of described audion VT1 buffers as transistor switch
The input of circuit is all connected with external power source with temperature controller.
Further, described base drive circuit by audion VT3, audion VT4, resistance R10,
Adjustable resistance R11, resistance R12, resistance R13, resistance R14, resistance R15, inductance L1, polar capacitor
C6, polar capacitor C7, polar capacitor C8, diode D4, and diode D5 form.
During connection, the N pole of diode D4 base stage with audion VT3 after resistance R12 is connected,
Its P pole is connected with the ISNS pin of control chip U.Positive pole after resistance R13 with audion VT3's
The polar capacitor C6, resistance R10 that emitter stage is connected, negative pole is connected with the emitter stage of audion VT4
One end be connected with the base stage of audion VT4, its other end is connected with the ORV pin of control chip U
Connect.
Meanwhile, the positive pole of polar capacitor C7 colelctor electrode with audion VT4 after resistance R14 be connected,
Its minus earth.One end of resistance R11 is connected with the negative pole of polar capacitor C7, its other end and audion
The emitter stage of VT2 is connected.The P pole of diode D5 is connected with the emitter stage of audion VT3, its N
Pole negative pole with polar capacitor C7 after resistance R15 is connected.The positive pole of polar capacitor C8 is through inductance L1
Colelctor electrode with audion VT4 is connected afterwards, its negative pole is collectively forming base stage with the negative pole of polar capacitor C7
The outfan of drive circuit is also connected with warm lamp group.
The colelctor electrode of described audion VT3 is connected with the VDD pin of control chip U;Described polarity electricity
The negative pole outfan with amplifier P3 after resistance R22 holding C7 is connected.
As in figure 2 it is shown, described matrix current adjustment circuit is by amplifier P1, amplifier P2, amplifier P3, three
Pole pipe VT5, resistance R16, resistance R17, resistance R18, adjustable resistance R19, resistance R20, resistance
R21, resistance R22, resistance R23, resistance R24, resistance R25, polar capacitor C9, polar capacitor C10,
Polar capacitor C11, polar capacitor C12, diode D6, diode D7, diode D8, and inductance
L2 forms.
During connection, the positive pole of diode D6 positive pole with amplifier P1 after resistance R16 is connected, its P
Pole as the input of matrix current adjustment circuit and is connected with the FB pin of control chip U.Polar capacitor C9
Positive pole negative pole with amplifier P1 after resistance R17 be connected, its negative pole after resistance R18 with audion
The colelctor electrode of VT5 is connected.The P pole of diode D7 is connected with the outfan of amplifier P1, its N pole
After inductance L2, the positive pole with polar capacitor C9 is connected.The negative pole of polar capacitor C10 after resistance R23 with
The positive pole of amplifier P3 is connected, its positive pole is connected with the outfan of amplifier P1.
Meanwhile, the P pole of diode D8 negative pole with amplifier P2 after adjustable resistance R19 be connected,
Its N pole is connected with the emitter stage of audion VT5.The negative pole phase of one end of resistance R21 and amplifier P3
Connection, its other end ground connection.The negative pole of polar capacitor C11 after resistance R25 with the positive pole phase of amplifier P2
It is connected with the outfan of amplifier P2 after connection, its positive electrode resistance R24.The positive pole of polar capacitor C12 with
The positive pole of polar capacitor C11 is connected, its negative pole emitter stage with audion VT5 after resistance R20 is connected
Connect.One end of resistance R22 is connected with the outfan of amplifier P3, its other end is as matrix current adjustment circuit
Outfan and be connected with base drive circuit.The negative pole of described polar capacitor C10 is negative with amplifier P2's
Pole is connected;The base stage of described audion VT5 is connected with the N pole of diode D7.
As it is shown on figure 3, described audion mu balanced circuit is by audion VT8, audion VT6, audion
VT7, resistance R26, resistance R27, resistance R28, resistance R29, resistance R30, resistance R31, adjustable
Resistance R32, resistance R33, polar capacitor C13, polar capacitor C14, polar capacitor C15, polar capacitor
C16, polar capacitor C17, Zener diode D9, diode D10, and Zener diode D11 form.
During connection, the N pole of Zener diode D9 is connected with the base stage of audion VT8, its N pole is made
For the input of audion mu balanced circuit and it is connected with transistor switch buffer circuit.Polar capacitor C14's
Positive pole is connected with the P pole of Zener diode D9, its minus earth.The positive pole of polar capacitor C13 is through electricity
Resistance R28 after be connected with the emitter stage of audion VT8, its negative pole after resistance R27 with Zener diode
The P pole of D9 is connected.One end of resistance R26 is connected with the negative pole of polar capacitor C13, its another termination
Ground.The N pole of diode D10 is connected with the base stage of audion VT6, its P pole after resistance R29 with
The emitter stage of audion VT8 is connected.
Meanwhile, the N pole of Zener diode D11 be connected with the colelctor electrode of audion VT7, its P pole with
The emitter stage of audion VT6 is connected.One end of adjustable resistance R32 is connected with the emitter stage of audion VT6
Connect, its other end is connected with the base stage of audion VT7.The positive pole of polar capacitor C17 and audion VT7
Emitter stage be connected, its negative pole colelctor electrode with audion VT6 after resistance R33 is connected.Polarity electricity
The positive pole of appearance C16 is connected with the colelctor electrode of audion VT6, its minus earth.Polar capacitor C15 is just
Pole negative pole with polar capacitor C16 after resistance R31 is connected, its negative pole after resistance R30 with audion
The colelctor electrode of VT8 is connected.
The negative pole of described polar capacitor C15 and the equal ground connection of negative pole of polar capacitor C17;Described Zener diode
The P pole of D11 is connected with the positive pole of polar capacitor C13;The colelctor electrode of described audion VT7 and control core
The RC pin of sheet U is connected.
During operation, the temperature controller of the present invention the most preferentially have employed KDS020-B temperature controller, the temperature of this temperature controller
Degree is set as 38C °, and when the temperature in bathroom is less than 38C °, this temperature controller is closure state, and the present invention is energized,
Meanwhile, the instantaneous high current of input current can be suppressed by the present invention, makes electric current held stationary, makes invention
Stable driving electric current can be exported, ensure that super bath energy heating-up temperature temperature is stable.When the temperature of super bath reaches
When setting to temperature controller is stablized, temperature controller will disconnect, dead electricity the most of the present invention, stops warming up for super bath
The warm lamp of lamp output electric current, i.e. super bath stops heating, until the temperature in super bath is steady less than the setting of temperature controller
After fixed, temperature controller closes the most automatically, the present invention the most again export stable drive electric current to the warm lamp of super bath, i.e.
The warm lamp of super bath then continues heating.
Meanwhile, the present invention can carry out real-time sampling to voltage, and can carry out negative feedback with sampled voltage, to defeated
Dynamically being adjusted and pressure drop of the electric current gone out, ensures that the present invention can export stable electric current.In order to
The practical effect of the present invention, it is real that described control chip U the most preferentially uses the integrated chip of TPS402000
Existing, this control chip U has the function such as overtemperature protection, over-voltage over-current protection, this chip and peripheral circuit phase
In conjunction with can effectively output electric current be adjusted, enable the invention to export stable driving electric current, thus really
Protect the present invention and can provide stable operating current for super bath, made the warm lamp heating-up temperature of super bath keep stable,
It is effectively prevented people simultaneously and the situation of anoxia because of high-temperature occurs in bathroom.
According to above-described embodiment, can well realize the present invention.
Claims (6)
1. based on transistor switch buffer circuit from an open-close type super bath control system, its feature exists
In, mainly by control chip U, temperature controller, audion VT2, negative pole after resistance R9 with audion VT2
The polarity that colelctor electrode is connected, positive pole is connected with the COV pin of control chip U after resistance R6 electricity
Holding C5, positive pole RC pin with control chip U after resistance R5 is connected, negative pole and control chip U
Polar capacitor C4, the N pole that is connected of FB pin be connected with the VDD pin of control chip U, P pole
The Zener diode D3 being connected with the RC pin of control chip U after resistance R8, is serially connected in temperature controller
And the transistor switch buffer circuit between control chip U, is serially connected in transistor switch buffer circuit and control
Audion mu balanced circuit between the RC pin of chip U, the base drive being connected with control chip U electricity
Road, and it is serially connected in the matrix current adjustment circuit group between FB pin and the base drive circuit of control chip U
Become;The VDD pin of described control chip U is connected with the base stage of audion VT2, and its GND pin connects
Ground;The emitter stage of described audion VT2 is connected with base drive circuit.
The most according to claim 1 a kind of based on transistor switch buffer circuit from open-close type super bath
By control system, it is characterised in that described audion mu balanced circuit by audion VT8, audion VT6,
Audion VT7, N pole is connected with the base stage of audion VT8, N pole is defeated as audion mu balanced circuit
Enter end the Zener diode D9 being connected with transistor switch buffer circuit, positive pole and Zener diode D9
P pole be connected, the polar capacitor C14 of minus earth, positive pole after resistance R28 with audion VT8's
The polar capacitor that emitter stage is connected, negative pole is connected with the P pole of Zener diode D9 after resistance R27
C13, one end is connected with the negative pole of polar capacitor C13, resistance R26, the N pole of other end ground connection and three poles
Two poles that the base stage of pipe VT6 is connected, P pole emitter stage with audion VT8 after resistance R29 is connected
Pipe D10, N pole is connected with the colelctor electrode of audion VT7, P pole is connected with the emitter stage of audion VT6
The Zener diode D11 connect, one end is connected with the emitter stage of audion VT6, the other end and audion VT7
The adjustable resistance R32 that is connected of base stage, positive pole is connected with the emitter stage of audion VT7, negative pole is through electricity
The polar capacitor C17 being connected with the colelctor electrode of audion VT6 after resistance R33, positive pole is with audion VT6's
Colelctor electrode is connected, the polar capacitor C16 of minus earth, and positive pole after resistance R31 with polar capacitor
The polarity electricity that the negative pole of C16 is connected, negative pole colelctor electrode with audion VT8 after resistance R30 is connected
Hold C15 composition;The negative pole of described polar capacitor C15 and the equal ground connection of negative pole of polar capacitor C17;Described surely
The P pole of pressure diode D11 is connected with the positive pole of polar capacitor C13;The colelctor electrode of described audion VT7
It is connected with the RC pin of control chip U.
The most according to claim 2 a kind of based on transistor switch buffer circuit from open-close type super bath
By control system, it is characterised in that described matrix current adjustment circuit is by amplifier P1, amplifier P2, amplifier
P3, audion VT5, positive pole positive pole with amplifier P1 after resistance R16 is connected, P pole is as electric current
The input adjusting circuit the diode D6 being connected with the FB pin of control chip U, positive pole is through resistance
After R17 the negative pole with amplifier P1 be connected, negative pole after resistance R18 with the colelctor electrode of audion VT5
Polar capacitor C9, the P pole being connected is connected with the outfan of amplifier P1, after the inductance L2 of N pole with pole
The diode D7 that the positive pole of property electric capacity C9 is connected, negative pole after resistance R23 with the positive pole phase of amplifier P3
Polar capacitor C10, the P pole that connection, positive pole are connected with the outfan of amplifier P1 is through adjustable resistance R19
The diode D8 that negative pole with amplifier P2 is connected afterwards, N pole is connected with the emitter stage of audion VT5,
One end is connected with the negative pole of amplifier P3, the resistance R21 of other end ground connection, negative pole after resistance R25 with
The polarity that the positive pole of amplifier P2 is connected, be connected with the outfan of amplifier P2 after positive electrode resistance R24
Electric capacity C11, positive pole is connected with the positive pole of polar capacitor C11, negative pole after resistance R20 with audion VT5
The polar capacitor C12 that is connected of emitter stage, and one end is connected with the outfan of amplifier P3, another
Hold as the outfan of matrix current adjustment circuit and be connected with base drive circuit resistance R22 composition;Described
The negative pole of polar capacitor C10 is connected with the negative pole of amplifier P2;The base stage and two of described audion VT5
The N pole of pole pipe D7 is connected.
The most according to claim 3 a kind of based on transistor switch buffer circuit from open-close type super bath
By control system, it is characterised in that described transistor switch buffer circuit is by field effect transistor MOS1, field effect
Pipe MOS2, audion VT1, one end is connected with the grid of field effect transistor MOS1, other end ground connection
Resistance R1, negative pole is connected with the base stage of audion VT1, positive pole is connected with the source electrode of field effect transistor MOS1
The polar capacitor C1 connect, one end is connected with the emitter stage of audion VT1, the other end and field effect transistor MOS1
The drain electrode with field effect transistor MOS2 after resistance R3 of resistance R2, the N pole that is connected of source electrode be connected, P
The diode D1 that pole is connected with the colelctor electrode of audion VT1, positive pole is connected with the N pole of diode D1,
Polar capacitor C2, the P pole that negative pole is connected with the drain electrode of field effect transistor MOS2 with field effect transistor MOS2
The diode D2 that source electrode is connected, N pole is connected with the drain electrode of field effect transistor MOS2, and positive pole warp
After resistance R4 the source electrode with field effect transistor MOS2 be connected, negative pole after resistance R7 with control chip U's
The polar capacitor C3 composition that SS pin is connected;The grounded drain of described field effect transistor MOS1;Described field
The grid of effect pipe MOS2 is connected with the N pole of diode D1, it drains respectively with control chip U's
FB pin is connected with base drive circuit;The grid of described field effect transistor MOS1 is connected with temperature controller;
The emitter stage of described audion VT1 is connected with the P pole of Zener diode D9;Described audion VT1's
Emitter stage is as the input of transistor switch buffer circuit.
The most according to claim 4 a kind of based on transistor switch buffer circuit from open-close type super bath
By control system, it is characterised in that described base drive circuit is by audion VT3, audion VT4, N
Pole base stage with audion VT3 after resistance R12 is connected, the ISNS pin of P pole and control chip U
The diode D4 being connected, positive pole emitter stage with audion VT3 after resistance R13 is connected, negative pole
The polar capacitor C6 being connected with the emitter stage of audion VT4, one end is connected with the base stage of audion VT4
Connect, resistance R10 that the other end is connected with the ORV pin of control chip U, positive pole after resistance R14 with
The colelctor electrode of audion VT4 is connected, the polar capacitor C7 of minus earth, and one end is with polar capacitor C7's
Negative pole is connected, the other end is connected with the emitter stage of audion VT2 resistance R11, P pole and audion
The diode that the emitter stage of VT3 is connected, N pole negative pole with polar capacitor C7 after resistance R15 is connected
D5, and positive pole colelctor electrode with audion VT4 after inductance L1 is connected, negative pole and polar capacitor C7
Negative pole be collectively forming base drive circuit outfan polar capacitor C8 composition;Described audion VT3
Colelctor electrode be connected with the VDD pin of control chip U;The negative pole of described polar capacitor C7 is through resistance
After R22, the outfan with amplifier P3 is connected.
The most according to claim 5 a kind of based on transistor switch buffer circuit from open-close type super bath
By control system, it is characterised in that described control chip U is the integrated chip of TPS402000.
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CN201610399213.5A CN105898901A (en) | 2016-06-07 | 2016-06-07 | Automatic opening and closing type control system for bath heater based on transistor switch buffer circuit |
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CN201610399213.5A CN105898901A (en) | 2016-06-07 | 2016-06-07 | Automatic opening and closing type control system for bath heater based on transistor switch buffer circuit |
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CN201610399213.5A Pending CN105898901A (en) | 2016-06-07 | 2016-06-07 | Automatic opening and closing type control system for bath heater based on transistor switch buffer circuit |
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