CN209315084U

CN209315084U - A kind of dedicated integration module of non-isolated heater of hair straightener of super-pressure

Info

Publication number: CN209315084U
Application number: CN201822056974.8U
Authority: CN
Inventors: 谭志锋
Original assignee: Zhejiang Aoke Semiconductor Co Ltd
Current assignee: Zhejiang Aoke Semiconductor Co Ltd
Priority date: 2018-12-07
Filing date: 2018-12-07
Publication date: 2019-08-30
Anticipated expiration: 2028-12-07

Abstract

The utility model discloses a kind of dedicated integration modules of the non-isolated heater of hair straightener of super-pressure, it utilizes external halfwave rectifier diode, by the pulse current of AC rectification Cheng Tongxiang, in each same phase pulse wave, only implement powered operation in very short time and low-pressure area, and alternating current synchronous zero testing clamper is implemented and alternating current low frequency synchronisation oscillation of power supply at low pressure using chip interior, low frequency noncontinuity pulse in chip is recycled dynamically to carry out dynamic charging to external storage capacitor, to provide the power supply capacity of internal MCU, again by this chip combination MCU singlechip chip and controlled silicon chip, it can be used as the dedicated highly integrated module of small household appliances heater of hair straightener, with small in size, handling ease, no EMI/EMC interference, it does not generate heat, it is at low cost, it is high-efficient, the advantages of meeting European Union's ERP standard.

Description

A kind of dedicated integration module of non-isolated heater of hair straightener of super-pressure

Technical field

The utility model relates to a kind of dedicated integration modules of the non-isolated heater of hair straightener of super-pressure, are especially a kind of wide electricity of exchange Press the integration module of input tape direct current output power supply chip combination MCU singlechip chip and bidirectional triode thyristor chip.

Background technique

The heater of hair straightener control route block diagram of the prior art is as shown in Figure 1, electrical control circuit design is combined by numerous unit It forms, wherein the unit of countermeasure containing EMI/EMC, rectification circuit unit, AC/DC pressure unit, LDO voltage regulation unit, relay driving Unit, MCU single machine unit, display unit are formed by combining, and each unit is composed of several electronic components, Disadvantage is as follows:

A. volume is big and inefficient problem；

The problem of EMI/EMC interference and fever are had when being B. such as depressured using switch mode power；

C. at high cost；

D. processing is not easy；

E. it can not meet European Union's ERP standard.

Utility model content

In view of the defect of the above-mentioned prior art, the purpose of this utility model is that: a kind of non-isolated straight hair of super-pressure is provided The dedicated integration module of device, the shortcomings that according to existing heater of hair straightener electrical control circuit, designing a can take out DC power supply for alternating current and supply Electrical chip becomes a highly integrated module in conjunction with MCU singlechip chip and bidirectional triode thyristor chip, has small in size, taking-up electricity Flow it is moderate, interfere, do not generate heat without EMI/EMC, chip at low cost is that primary design solves target, the present invention can be made to become house The electric dedicated highly integrated module of heater of hair straightener.

The technical solution of the utility model is: a kind of dedicated integration module of non-isolated heater of hair straightener of super-pressure is at least set There are two half-wave AC power sources to input pin, an operating voltage output connecting pin, a direct voltage output pin, a MCU single-chip microcontroller Chip, by a gate pin and one in the compound pin of I/O foot composition functions multiple in MCU singlechip chip, controlled silicon chip Controlled main pole pin, which includes:

One chip, the chip include an in-line power circuit unit, are connected with half-wave AC power source input pin, It include one first Sofe Switch, a constant-current source and a start-up circuit, when a chip is powering up, electric current is through first Sofe Switch and the perseverance Stream source can charge to the storage capacitor of chip exterior, and when reaching start-up circuit upper limit reference voltage, which is The charge path to external storage capacitor is closed, and the operating voltage of chip interior is provided；

One capacitor charging circuit unit, is connected with ac power input end, and it includes have exchange detection clamper electricity Road and one second Sofe Switch are opened this and second soft are opened when exchange detection clamp circuit detects operating on low voltage area current potential It closes, continues that external storage capacitor is continued to charge with low frequency noncontinuity pulse, to provide internal MCU power supply and external member Device power source uses；

One MCU singlechip chip, power supply and ground wire, the super-pressure power supply driving chip power pin of MCU singlechip chip It is connected, MCU singlechip chip can provide multiple multi-functional I/O compound foots, defines respectively with external software imprinting, function, is right Outer connection is used；

One two-way controlled silicon chip, has a main pole, a controlled main pole and a gate, main pole and integration module wherein half Alternating current wave source input pin is connected, and controlled main pole is connected with external loading end, and gate is connected with control signal input It connects.

Further, the half-wave alternating current that half-wave AC power source input pin is inputted, will be complete using a diode The alternating current of wave changes into the alternating current of half-wave.

Further, which includes a third Sofe Switch, one end of the third Sofe Switch and one First storage capacitor is connected, and the other end is connected with one second storage capacitor, and the energy of first storage capacitor can be via third Sofe Switch is released to the second storage capacitor, to ensure the enough energy supplies of load end.

Further, the first Sofe Switch, the second Sofe Switch and third Sofe Switch are metal oxide semiconductcor field effect electricity Crystal.

Further, which further includes an active leadage circuit unit, the active leadage circuit unit with exchange Power input is connected, and using active leadage circuit, provides current source leakage path, to ensure that input energy can be in the charging phase Between, it charges to external storage capacitor.

Further, which is equipped with an overheating protection circuit and one first at the second Sofe Switch again Under-voltage overvoltage crowbar.

Further, the capacitor charging circuit unit at third Sofe Switch be equipped with one second under-voltage overvoltage crowbar with An and overcurrent limiting circuit.

Using a kind of dedicated integration module of non-isolated heater of hair straightener of super-pressure provided by the utility model, its advantages Be: it utilizes external halfwave rectifier diode, by the pulse current of AC rectification Cheng Tongxiang, in each same phase pulse wave, only Implement powered operation in very short time and low-pressure area, and utilizes chip interior to alternating current synchronous zero testing clamper low At pressure implement with alternating current low frequency synchronisation oscillation of power supply, recycle chip in the pulse of low frequency noncontinuity dynamically to external energy storage Capacitor carries out dynamic charging, to provide the power supply capacity of internal MCU, then by this chip combination MCU singlechip chip with it is two-way can Control silicon chip become highly integrated module, can be used as the dedicated highly integrated module of small household appliances heater of hair straightener, have it is small in size, plus Work is easy, interferes without EMI/EMC, do not generate heat, is at low cost, high-efficient, meeting the advantages of European Union's ERP standard.

Detailed description of the invention

Fig. 1 is that the heater of hair straightener of this prior art controls line block diagram；

Fig. 2 is the integrated block diagram of the utility model integration module；

Fig. 3 is the utility model power supply chip internal frame diagram；

Fig. 4 is the package drawing of the utility model integration module；

Fig. 5 is the external wiring diagram of the utility model integration module；

Fig. 6 is the utility model chip waveform figure.

As shown in the figure: 1- half-wave AC power source inputs pin, 2- operating voltage output connecting pin, and 3- direct voltage output connects Foot, 4-MCU singlechip chip, 5- function and service pin, 6- gate pin, 7- are controlled main pole pin, 8- chip, 9- in-line power Circuit unit, the first Sofe Switch of 10-, 11- constant-current source, 12 1 start-up circuits, 13- capacitor charging circuit unit, 14- exchange detection Clamp circuit, the second Sofe Switch of 15-, 16- third Sofe Switch, the first storage capacitor of 17-, the second storage capacitor of 18-, 19- is actively Leadage circuit unit, 20- overheating protection circuit, the under-voltage overvoltage crowbar of 21- first, the under-voltage overvoltage crowbar of 22- second, 23- overcurrent limiting circuit, 24- controlled silicon chip.

Specific embodiment

For it is relatively intuitive, be fully understood by the technical solution of the utility model, now just combine the progress of the utility model attached drawing Unrestricted feature description is as follows:

As shown in Fig. 2-Fig. 6, the dedicated integration module of a kind of non-isolated heater of hair straightener of super-pressure, at least provided with 2 half alternating current waves Source input pin 1,2, direct voltage output pins 3 of an operating voltage output connecting pin, a MCU singlechip chip 4, by MCU The compound pin 5 (ON/OFF, UP, DN, NTC, OUT, L1-L4) of multiple I/O foot composition functions, silicon-controlled core in singlechip chip 4 A gate pin 6 and a controlled main pole pin 7 in piece 24, which includes:

One chip 8, the chip 8 include an in-line power circuit unit 9, are connected with half-wave AC power source input pin 1 Connect, it includes having one first Sofe Switch 10, a constant-current source 11 and a start-up circuit 12, when chip 8 powers on, electric current through this first Sofe Switch 10 and the constant-current source 11, can charge to the storage capacitor outside chip 8, when reaching 12 upper limit reference of start-up circuit Voltage, which is the charge path closed to external storage capacitor, and provides the operating voltage inside chip 8；

One capacitor charging circuit unit 13, is connected with ac power input end, and it includes have an exchange to detect clamper Circuit 14 and one second Sofe Switch 15, when exchange detection clamp circuit 14 detects operating on low voltage area current potential, that is, opening should Second Sofe Switch 15 continues to continue to charge with low frequency noncontinuity pulse to external storage capacitor, to provide internal MCU power supply And external component power supply uses；

One MCU singlechip chip 4, power supply and ground wire, super-pressure power supply 8 power supply of driving chip of MCU singlechip chip 4 connect Foot is connected, and MCU singlechip chip 4 can provide multiple multi-functional I/O compound foots, defined respectively with external software imprinting, function, External connection is used；

One two-way controlled silicon chip 24, has a main pole, a controlled main pole and a gate, main pole and integration module wherein one Half-wave AC power source input pin 1 is connected, and controlled main pole is connected with external loading end, gate and control signal input phase Connection.

The half-wave alternating current that half-wave AC power source input pin 1 is inputted is using a diode, by the exchange of all-wave Electric current changes into the alternating current of half-wave.

The capacitor charging circuit unit 13 includes a third Sofe Switch 16, one end of the third Sofe Switch 16 and one first Storage capacitor 17 is connected, and the other end is connected with one second storage capacitor 18, and the energy of first storage capacitor 17 can be via Three-soft-switch 16 is released to the second storage capacitor 18, to ensure the enough energy supplies of load end.

First Sofe Switch 10, the second Sofe Switch 15 and third Sofe Switch 16 are that metal oxide semiconductcor field effect electricity is brilliant Body.

The integration module further includes an active leadage circuit unit 19, and the active leadage circuit unit 19 is defeated with AC power source Enter end to be connected, using active leadage circuit, provide current source leakage path, to ensure that input energy can be right during charging External storage capacitor charges.

The capacitor charging circuit unit 13 is equipped with an overheating protection circuit 20 and one first at the second Sofe Switch 15 again and owes Press through voltage protection circuit 21.

The capacitor charging circuit unit 13 at third Sofe Switch 16 be equipped with one second under-voltage overvoltage crowbar 22 and One overcurrent limiting circuit 23.

Certainly, the above is only the preferred embodiments of the present utility model only, and therefore, it does not limit the patents of the utility model Range, all with the utility model specification and schema content institute, simply modification and equivalent structure change for it, should all similarly wrap Within scope of patent protection contained in the utility model.

Claims

1. a kind of dedicated integration module of non-isolated heater of hair straightener of super-pressure, it is characterised in that: defeated at least provided with two half-wave AC power sources Enter pin, an operating voltage output connecting pin, a direct voltage output pin, a MCU singlechip chip, by MCU monolithic machine core The compound pin of multiple I/O foot composition functions in piece, a gate pin and a controlled main pole pin in controlled silicon chip, this is integrated Module includes:

One chip, the chip include an in-line power circuit unit, are connected with half-wave AC power source input pin, it includes There are one first Sofe Switch, a constant-current source and a start-up circuit, when a chip is powering up, electric current is through first Sofe Switch and the constant current Source can charge to the storage capacitor of chip exterior, and when reaching start-up circuit upper limit reference voltage, which is closed The charge path to external storage capacitor is closed, and the operating voltage of chip interior is provided；

One capacitor charging circuit unit, is connected with ac power input end, it includes have an exchange detection clamp circuit and One second Sofe Switch opens second Sofe Switch when exchange detection clamp circuit detects operating on low voltage area current potential, after It is continuous that external storage capacitor is continued to charge with low frequency noncontinuity pulse, to provide internal MCU power supply and external component Power supply uses；

The power supply of one MCU singlechip chip, MCU singlechip chip is connected with ground wire, super-pressure power supply driving chip power pin It connects, MCU singlechip chip can provide multiple multi-functional I/O compound foots, defines with external software imprinting, function, externally connects respectively Connect use；

One two-way controlled silicon chip has a main pole, a controlled main pole and a gate, and wherein a half-wave is handed over for main pole and integration module Stream power input pin is connected, and controlled main pole is connected with external loading end, and gate is connected with control signal input.

2. a kind of dedicated integration module of the non-isolated heater of hair straightener of super-pressure according to claim 1, it is characterised in that: the half-wave The alternating current of all-wave is changed into the friendship of half-wave using a diode by the half-wave alternating current that AC power source input pin is inputted Galvanic electricity stream.

3. a kind of dedicated integration module of the non-isolated heater of hair straightener of super-pressure according to claim 1, it is characterised in that: the capacitor Charging circuit unit includes a third Sofe Switch, and one end of the third Sofe Switch is connected with one first storage capacitor, another End is connected with one second storage capacitor, and the energy of first storage capacitor can be released to the second energy storage electricity via third Sofe Switch Hold, to ensure the enough energy supplies of load end.

4. a kind of dedicated integration module of the non-isolated heater of hair straightener of super-pressure according to claim 3, it is characterised in that: first is soft Switch, the second Sofe Switch and third Sofe Switch are metal oxide semiconductcor field effect transistor.

5. a kind of dedicated integration module of the non-isolated heater of hair straightener of super-pressure according to claim 1, it is characterised in that: this is integrated Module further includes an active leadage circuit unit, which is connected with ac power input end, utilizes master Dynamic leadage circuit, provides current source leakage path, to ensure that input energy can fill external storage capacitor during charging Electricity.

6. a kind of dedicated integration module of the non-isolated heater of hair straightener of super-pressure according to claim 1, it is characterised in that: the capacitor Charging circuit unit is equipped with an overheating protection circuit and one first under-voltage overvoltage crowbar at the second Sofe Switch again.

7. a kind of dedicated integration module of the non-isolated heater of hair straightener of super-pressure according to claim 1, it is characterised in that: the capacitor Charging circuit unit is equipped with one second under-voltage overvoltage crowbar and an overcurrent limiting circuit at third Sofe Switch.