CN103138361A - Battery charger based on monolithic six-side TOP24X series - Google Patents
Battery charger based on monolithic six-side TOP24X series Download PDFInfo
- Publication number
- CN103138361A CN103138361A CN2012104375040A CN201210437504A CN103138361A CN 103138361 A CN103138361 A CN 103138361A CN 2012104375040 A CN2012104375040 A CN 2012104375040A CN 201210437504 A CN201210437504 A CN 201210437504A CN 103138361 A CN103138361 A CN 103138361A
- Authority
- CN
- China
- Prior art keywords
- circuit module
- output
- top24x
- integrated chip
- monolithic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a battery charger based on a monolithic six-side TOP24X series. The battery charger based on the monolithic six-side TOP24X series is mainly formed by a TOP24X integrated chip circuit module, a main output module, an output turn-off circuit module, a constant voltage circuit module and a constant current circuit. The battery charger based on the monolithic six-side TOP24X series controls a TOP 24X integrated chip mutually through the constant current circuit, the constant voltage circuit module and the output turn-off circuit module to achieve pulse-width modulation (PWM), and therefore the functions of constant current, constant voltage, automatic identification output turning off and the like can be achieved. The battery charger based on the monolithic six-side TOP24X series uses the characteristics of the TOP 24X integrated chip of high power (up to 250 W) and high integrated efficiency (metal-oxide-semiconductor field effect transistor (MOSFET), PWM control, fault protection, circuit detection and other functions are integrated as a whole). The battery charger based on the monolithic six-side TOP24X series has the advantages of being less in external elements, low in electro-magnetic interference (EMI), strong in self-protective function, low in cost, convenient to produce, strong in anti-jamming capability, high in safety and reliability and the like.
Description
Technical field
The present invention relates to field of switch power, relate in particular to the Switching Power Supply battery charger.
Background technology
The application of Switching Power Supply at present is more and more extensive, and battery charger is all realized with the Switching Power Supply mode basically.Therefore judge that the quality of a battery charger product just is the aspects such as its cost, safety and reliability.
At present charger circuit is mainly to realize that in the mode that power management chip adds power switch pipe the PWM of Switching Power Supply primary circuit regulates, and element is more owing to using, so product fraction defective, cost and EMI in this series products are higher.Also having some is that mode with RCC realizes, although this type of circuit has saved power management chip, still needs more element to realize, the fraction defective of its product, EMI problem are still higher, and the shortcoming such as efficient is low.
At present the TOP24X integrated chip is with its high integrated usefulness (MOSFET, PWM control, error protection, electric circuit inspection and other functions are integrated in one) and outer member is few, EMI is low, defencive function is powerful etc. that advantage has been used widely in field of switch power, but because charger makes it remain a vacancy on charger field is used in the particularity in functional requirement.
Summary of the invention
For above-mentioned the problems of the prior art and shortcoming; this novel practical has proposed a kind of battery charger based on the TOP24X integrated chip; TOP24X belongs to the 4th generation TOPSwitch-GX series of products; utilize that its integrated level is high, outer member is few and self with the defencive function such as excess temperature, overcurrent; can effectively reduce cost and EMI, make also simultaneously that production technology is easier, safety and reliability is higher.
The technical scheme of this novel practical is as follows: a kind of charger based on the TOP24X integrated chip comprises TOP24X integrated chip circuit module 1, main output module 2, output breaking circuit module 3, constant voltage circuit module 4, constant-current circuit module 5;
The TOP24X integrated chip, have six lead ends, they are respectively control end C, wireline inspection end L, limiting current is set end X, drain D, source S, switching frequency selecting side F, the break-make of not stopping by drain D and source S makes primary produce pulsating current, pass through again transformer coupled to secondary, secondaryly again output state is fed back to control pin, control pin produces by its inner integrated a series of control circuits the make-and-break time that a PWM drives signal controlling drain electrode and source electrode again.Utilize wireline inspection end (L) can realize four kinds of functions: overvoltage (OV) protection; Under voltage (UV) protection; Electric voltage feed forward (being used for reducing maximum duty cycle when line voltage is too low); Long-range on/off (ON/OFF) and synchronous.And limit of utilization current settings end (X), can be from the limiting current of external setting-up chip.Utilize switching frequency selecting side (F) to be used for the selector switch frequency, in most cases switching frequency is 132KHz, and this helps to reduce the volume of high frequency transformer and whole Switching Power Supply, under some special occasions, can select frequency is 66KHz, to reduce external frequency interferences.The TOP24X integrated chip is also built-in in addition overheat protector;
Output breaking circuit module 3 when output voltage or electric current being detected less than set point, disconnects output circuit;
Constant voltage circuit module 4 for detection of output voltage,, produces one and feeds back signal to TOP24X integrated chip circuit module 1 during greater than the magnitude of voltage that arranges when output voltage, makes to drain and duty ratio that source electrode is opened reduces, thereby has reached the constant voltage effect;
Constant-current circuit module 5 for detection of output current,, produces one and feeds back signal to TOP24X integrated chip circuit module 1 during greater than the current value that arranges when output current, makes to drain and duty ratio that source electrode is opened reduces, thereby has reached the constant current effect.
Adopt charger provided by the present invention; adding the power switch pipe scheme with Switching Power Supply managing chip that background technology is mentioned compares with the RCC scheme; its circuit is simple, peripheral component is few, EMI is low; the characteristics of the high integrated usefulness of TOP24X integrated chip (MOSFET, PWM control, error protection, electric circuit inspection and other functions are integrated in one) make product safety and reliability aspect in cost also be improved.
The present invention has added the functions such as the required constant current of charger, output shutoff that the advantage of TOP24X integrated chip is applied on charger on the switching power circuit of TOP24X integrated chip maturation.
Description of drawings
Accompanying drawing 1 is theory diagram of the present invention;
Accompanying drawing 2 is physical circuit figure of the present invention.
Embodiment
Be described further below in conjunction with Fig. 1,2 pairs of operation principles of the present invention:
patent of the present invention is a kind of charger based on the TOP24X integrated chip, comprise TOP24X integrated chip circuit module 1, main output module 2, output breaking circuit module 3, constant voltage circuit module 4, constant-current circuit module 5, TOP24X integrated chip circuit module 1, have six lead ends, they are respectively control end C, wireline inspection end L, limiting current is set end X, drain D, source S, switching frequency selecting side F, the break-make of not stopping by drain D and source S makes primary produce pulsating current, pass through again transformer coupled to secondary, secondaryly again output state is fed back to control pin, control pin produces by its inner integrated a series of control circuits the make-and-break time that a PWM drives signal controlling drain electrode and source electrode again.Utilize wireline inspection end (L) can realize four kinds of functions: overvoltage (OV) protection; Under voltage (UV) protection; Electric voltage feed forward (being used for reducing maximum duty cycle when line voltage is too low); Long-range on/off (ON/OFF) and synchronous.And limit of utilization current settings end (X), can be from the limiting current of external setting-up chip.Utilize switching frequency selecting side (F) to be used for the selector switch frequency, in most cases switching frequency is 132KHz, and this helps to reduce the volume of high frequency transformer and whole Switching Power Supply, under some special occasions, can select frequency is 66KHz, to reduce external frequency interferences.The TOP24X integrated chip is also built-in in addition overheat protector;
when power supply electrifying, AC85～265V alternating current becomes direct current by current rectifying and wave filtering circuit, elementary to the TOP24X integrated chip by transformer T1, beginning produces pulsating current with the frequency copped wave of 132KHz after TOP24X drain D and source S receive voltage, pulsating current by transformer T1 elementary be coupled to secondary, again by main output circuit module 2, in case constant voltage circuit module 4 also begins to work when output dc voltage being detected over set point simultaneously, constant voltage circuit will produce one and feed back signal to TL431 the 3rd pin higher than 2.5V, the 2nd pin of TL431 and the resistance between the 1st pin are reduced, make by photoelectrical coupler U2 the 1st pin and the 2nd pin electric current and increase, make electric current increase between photoelectrical coupler U2 the 3rd pin and the 4th pin by coupling, increase by the electric current of TOP24X integrated chip the 1st pin to ground simultaneously, the duty ratio that makes the drain electrode of TOP24X integrated chip and source electrode open reduces, thereby limited the maximum of output voltage, meanwhile other two-way auxiliary circuit has obtained direct voltage by current rectifying and wave filtering circuit too, give respectively TOP24X integrated chip and the power supply of output feedback circuit.
The working method of constant-current circuit module 5 is similar to constant voltage circuit module 4, in the charger charging process, when output current being detected greater than set point, constant-current circuit produces the level higher than 2.5V and holds to TOP24X integrated chip gate pole C by U1 and photoelectrical coupler U2, the duty ratio of opening of its drain D and source S is reduced, thereby limited the maximum of output current.
After charger powers on, output breaking circuit module 3 begins to detect charger output, if do not connect battery, battery plus-negative plate short circuit or both positive and negative polarity reversal connection, charger output is turn-offed, if still be in above state in a period of time, charger is no longer opened until charger re-powers, if in a period of time, charger connects battery well, charger charges normal, until battery charge is less than setting electric current, this moment, battery was full of, and output breaking circuit module 3 is turn-offed output.
Provided by the present invention have the advantages such as outer member is few, defencive function is powerful, EMI is low based on TOP24X integrated chip charger, makes that product cost reduces, safety and reliability is higher, makes it have more competitiveness in like product.
Above-described embodiment of the present invention does not consist of the restriction to protection range of the present invention.Any modification of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in claim protection range of the present invention.
Claims (2)
1. the charger based on monolithic six end TOP24X integrated chips, is characterized in that comprising: TOP24X integrated chip circuit module, main output module, output breaking circuit module, constant voltage circuit module, constant-current circuit module; Described TOP24X integrated chip circuit module is electrically connected to main output module, constant voltage circuit module and constant-current circuit module, and described main output module is electrically connected to output breaking circuit module, constant voltage circuit module and constant-current circuit module;
Described TOP24X integrated chip circuit module is used for receiving and processing main output module feedback signal, then controls the output of charger by regulating service time;
Described output breaking circuit module for detection of battery charging state, does not automatically shut down charger output when output short-circuit, output both positive and negative polarity reversal connection, charger do not connect when battery or battery are full of;
Described constant voltage circuit module is for detection of feeding back to the TOP24X integrated chip with the processing output voltage signal;
Described constant-current circuit module is for detection of feeding back to the TOP24X integrated chip with the processing output current signal.
2. the charger based on monolithic six end TOP24X integrated chips according to claim 1, it is characterized in that comprising: described TOP24X integrated chip circuit module has six lead ends, that is, control end, wireline inspection end, limiting current are set end, drain electrode, source electrode and switching frequency selecting side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104375040A CN103138361A (en) | 2012-11-05 | 2012-11-05 | Battery charger based on monolithic six-side TOP24X series |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104375040A CN103138361A (en) | 2012-11-05 | 2012-11-05 | Battery charger based on monolithic six-side TOP24X series |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103138361A true CN103138361A (en) | 2013-06-05 |
Family
ID=48497823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104375040A Pending CN103138361A (en) | 2012-11-05 | 2012-11-05 | Battery charger based on monolithic six-side TOP24X series |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103138361A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666754A (en) * | 2016-07-29 | 2018-02-06 | 松下知识产权经营株式会社 | Sender unit, illuminator and ligthing paraphernalia |
| CN110031660A (en) * | 2019-05-17 | 2019-07-19 | 吴忌 | A kind of multi-functional maintaining detector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090027012A1 (en) * | 2007-07-25 | 2009-01-29 | Sony Corporation | Battery charger |
| CN202145576U (en) * | 2011-06-24 | 2012-02-15 | 广州市君盘实业有限公司 | Lithium battery charger turning off system |
| CN202424283U (en) * | 2012-02-09 | 2012-09-05 | 广州市君盘实业有限公司 | Charger based on single-chip three-end TOP22X integrated chip |
| CN203086225U (en) * | 2012-11-05 | 2013-07-24 | 广州市君盘实业有限公司 | Battery charger based on single-chip six-terminal TOP 24X series |
-
2012
- 2012-11-05 CN CN2012104375040A patent/CN103138361A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090027012A1 (en) * | 2007-07-25 | 2009-01-29 | Sony Corporation | Battery charger |
| CN202145576U (en) * | 2011-06-24 | 2012-02-15 | 广州市君盘实业有限公司 | Lithium battery charger turning off system |
| CN202424283U (en) * | 2012-02-09 | 2012-09-05 | 广州市君盘实业有限公司 | Charger based on single-chip three-end TOP22X integrated chip |
| CN203086225U (en) * | 2012-11-05 | 2013-07-24 | 广州市君盘实业有限公司 | Battery charger based on single-chip six-terminal TOP 24X series |
Non-Patent Citations (1)
| Title |
|---|
| 赵静: "基于TOP249的一种新型智能充电器的研制", 《电子技术》, 30 September 2003 (2003-09-30), pages 46 - 47 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107666754A (en) * | 2016-07-29 | 2018-02-06 | 松下知识产权经营株式会社 | Sender unit, illuminator and ligthing paraphernalia |
| CN110031660A (en) * | 2019-05-17 | 2019-07-19 | 吴忌 | A kind of multi-functional maintaining detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101974861B1 (en) | Charging apparatus for electronic device and power adapter for electronic device | |
| CN101594064B (en) | Switching power supply controller | |
| CN101207336B (en) | Transistor driver circuit of power converter | |
| CN110071638A (en) | Switching power unit and continuous-current plant | |
| DE102012104072A1 (en) | converter | |
| CN103997295B (en) | Photovoltaic battery charge controller | |
| CN109309453A (en) | Has the power conversion system of clamping mode switching | |
| CN209419502U (en) | Power supply circuit, control circuit and Switching Power Supply | |
| CN102969783B (en) | Direct current uninterruptible power supply | |
| CN202424283U (en) | Charger based on single-chip three-end TOP22X integrated chip | |
| CN103887864A (en) | Charger special for storage battery matched with lifting electromagnet | |
| CN105529791A (en) | Charging system based on secondary control and secondary control device thereof | |
| CN201846229U (en) | Soft start circuit | |
| CN109921615A (en) | Instantaneous negative pressure switch-off power metal-oxide-semiconductor driving circuit and driving method | |
| CN104601015B (en) | Inverse-excitation type AC DC converters | |
| CN100435464C (en) | DC/DC isolation and switching device | |
| CN103138361A (en) | Battery charger based on monolithic six-side TOP24X series | |
| CN203218957U (en) | Single-chip microcomputer intelligent control system battery charger based on TOP24X integrated chip | |
| CN203086225U (en) | Battery charger based on single-chip six-terminal TOP 24X series | |
| CN101572491B (en) | Switch power circuit and operation method thereof | |
| CN109586598A (en) | A kind of power supply circuit, control circuit and Switching Power Supply | |
| CN202889180U (en) | AC (Alternating Current) and DC (Direct Current) input self-adaptive circuit | |
| CN105098860A (en) | Charger control system for realizing constant current and constant voltage by employing TOP24X integrated chip | |
| CN104682709A (en) | High-frequency voltage boosting circuit | |
| CN204836671U (en) | Multi -functional drive circuit that adjusts luminance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130605 |