CN103051164A - Filter circuit for filtering output voltage of battery - Google Patents

Filter circuit for filtering output voltage of battery Download PDF

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Publication number
CN103051164A
CN103051164A CN2012102642437A CN201210264243A CN103051164A CN 103051164 A CN103051164 A CN 103051164A CN 2012102642437 A CN2012102642437 A CN 2012102642437A CN 201210264243 A CN201210264243 A CN 201210264243A CN 103051164 A CN103051164 A CN 103051164A
Authority
CN
China
Prior art keywords
battery
filter
output line
filter circuit
power supply
Prior art date
Application number
CN2012102642437A
Other languages
Chinese (zh)
Inventor
任佳
Original Assignee
成都锐奕信息技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to CN201110311457.0 priority Critical
Priority to CN201110311457 priority
Application filed by 成都锐奕信息技术有限公司 filed Critical 成都锐奕信息技术有限公司
Priority to CN2012102642437A priority patent/CN103051164A/en
Publication of CN103051164A publication Critical patent/CN103051164A/en

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Abstract

The invention discloses a filter circuit for filtering output voltage of a battery. The filter circuit comprises the battery (1) and a filter, wherein the battery (1) is provided with a power output line; the power output line of the battery (1) is connected with a temperature sensitive resistor (R1); one end of the filter is connected with the other end, which is opposite to the end connected with the power output line of the battery (1), of the temperature sensitive resistor (R1), and the other end of the filter is grounded; and the filter comprises a first capacitor (C1) and a second capacitor (C2) connected in parallel with the first capacitor (C1). The integral structure is simple, and the filter circuit is easy to implement; and when the battery (1) supplies power, the filter circuit can filter partial ripple waves so as to reduce the influence of the ripple waves on the work of electronic products.

Description

Be used for the filter circuit that the output voltage to battery filters

Technical field

The present invention relates to a kind of signal processing apparatus, the filter circuit that specifically filters for the output voltage to battery.

Background technology

Along with the development of science and technology, electronics applications is more and more extensive, and power supply is the indispensable part of electronic product, for some lightweight electronic products, such as mobile phone, wrist-watch etc., they need to be carried, therefore usually by lightweight, energy is high, adaptable battery is as power supply.Battery is the device of a kind of Conversion of Energy and storage, and it is converted into electric energy by reaction with chemical energy or physical energy.Difference according to the battery conversion of energy, battery can be divided into chemical cell and physical battery, wherein, chemical cell is the device that chemical energy is converted into electric energy, it forms respectively both positive and negative polarity by the electrochemical activity electrode of two kinds of heterogeneities, as electrolyte, in the time of on being connected to a certain outer carrier, provide electric energy by changing its inner chemical energy by a kind of chemical substance that the media conduction can be provided; Physical battery is exactly the device that physical energy is converted into electric energy.Battery is except providing the energy, and also there is ripple in the supply voltage of its output, thereby can affect the electronic product normal operation.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, the filter circuit that provides a kind of output voltage for to battery that can reduce battery output supply voltage ripple to filter.

Purpose of the present invention is achieved through the following technical solutions: be used for the filter circuit that the output voltage to battery filters, comprise battery and filter, described battery is provided with the power supply output line road, the power supply output line road of battery is connected with thermo-sensitive resistor, the relative other end that connects the power supply output line terminal of battery with thermo-sensitive resistor of described filter one end connects its other end ground connection; Described filter comprises that the first electric capacity reaches and the second electric capacity of the first Capacitance parallel connection.

The power supply output line road of described battery is connected in series with the first inductance.The first inductance is set its signal for certain frequency range and is had higher impedance during fabrication, and its high-frequency noise and spike that is used for suppressing on the power supply output line road disturbs, and also has the ability that absorbs electrostatic pulse.

Described filter is connected in parallel to the transient voltage twin zener dioder.The transient voltage twin zener dioder is in parallel with filter, then itself and the first electric capacity and the second Capacitance parallel connection, and namely transient voltage twin zener dioder one end is connected with the power supply output line road of battery, its other end ground connection.The transient voltage twin zener dioder can be in the utmost point over the ground conducting in the short time, thereby reaches the purpose of electrostatic interference being introduced ground, protection battery and load.

The present invention compared with prior art has the following advantages and beneficial effect: (1) the present invention includes the filter that is made of the first electric capacity and the second electric capacity, filter is connected with the power supply output line road of battery, when battery is the load energy supply, filter can carry out filtering to the part ripple of battery output supply voltage, thereby reduces ripple to the impact of electronic product work; The present invention is connected with thermo-sensitive resistor between the power supply output line road of filter and battery; thermo-sensitive resistor is responsive to variation of ambient temperature; its resistance changes with the variation of ambient temperature, can allow system detect at any time the variation of battery temperature by thermo-sensitive resistor, is convenient to battery is protected.

(2) filter of the present invention is connected in parallel to the transient voltage twin zener dioder, and transient voltage twin zener dioder effectively guard system ESD disturbs impact to battery, also can protect conversely the ESD that is imported by battery and disturb impact to system.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention.

The corresponding name of Reference numeral is called in the accompanying drawing: 1-battery, C1-first electric capacity, C2-second electric capacity, D1-transient voltage twin zener dioder, L1-first inductance, R1, thermo-sensitive resistor.

Embodiment

The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited to this.

Embodiment:

As shown in Figure 1, be used for the filter circuit that the output voltage to battery filters, comprise battery 1 and filter, battery 1 is provided with the power supply output line road, be connected with thermo-sensitive resistor R1 on the power supply output line road of battery 1, thermo-sensitive resistor R1 relatively connect battery 1 the power supply output line terminal the other end be connected with filter, filter is provided with earth terminal.Wherein, filter comprises the first capacitor C 1 and second capacitor C 2 in parallel with the first capacitor C 1.Filter is connected in parallel to transient voltage twin zener dioder D1, and transient voltage twin zener dioder D1 is in parallel with the first capacitor C 1 and the second capacitor C 2, and namely transient voltage twin zener dioder D1 one end is connected with the power supply output line road of battery 1, its other end ground connection.The power supply output line road of battery 1 is connected in series with the first inductance L 1, the first inductance L 1 is arranged on the power supply output line road near the position of load, and the link position on filter and transient voltage twin zener dioder D1 and power supply output line road is between the circuit of the first inductance L 1 and battery 1.

The operation principle that is used for the filter circuit that the output voltage to battery filters: the output voltage of battery 1 through filter filtering part ripple after, suppress high-frequency noise through the first inductance L 1 again and spike disturbs, be load supplying at last.Wherein, the first inductance L 1 also has the ability that absorbs electrostatic pulse, and during battery 1 power supply, transient voltage twin zener dioder D1 can be in the utmost point over the ground conducting in the short time, thereby reaches the purpose of electrostatic interference being introduced ground, protection battery 1 and load.

As mentioned above, then can well realize the present invention.

Claims (3)

1. the filter circuit that filters for the output voltage to battery, it is characterized in that: comprise battery (1) and filter, described battery (1) is provided with the power supply output line road, the power supply output line road of battery (1) is connected with thermo-sensitive resistor (R1), the relative other end that connects the power supply output line terminal of battery (1) with thermo-sensitive resistor (R1) of described filter one end connects its other end ground connection; Described filter comprises the first electric capacity (C1) and second electric capacity (C2) in parallel with the first electric capacity (C1).
2. the filter circuit that filters for the output voltage to battery according to claim 1, it is characterized in that: the power supply output line road of described battery (1) is connected in series with the first inductance (L1).
3. the filter circuit that filters for the output voltage to battery according to claim 1 and 2, it is characterized in that: described filter is connected in parallel to transient voltage twin zener dioder (D1).
CN2012102642437A 2011-10-14 2012-07-30 Filter circuit for filtering output voltage of battery CN103051164A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201110311457.0 2011-10-14
CN201110311457 2011-10-14
CN2012102642437A CN103051164A (en) 2011-10-14 2012-07-30 Filter circuit for filtering output voltage of battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012102642437A CN103051164A (en) 2011-10-14 2012-07-30 Filter circuit for filtering output voltage of battery

Publications (1)

Publication Number Publication Date
CN103051164A true CN103051164A (en) 2013-04-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012102642437A CN103051164A (en) 2011-10-14 2012-07-30 Filter circuit for filtering output voltage of battery

Country Status (1)

Country Link
CN (1) CN103051164A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280958A (en) * 2013-06-17 2013-09-04 成都荣耀科技有限公司 Filtration module of battery used in transformer substation environment temperature and humidity monitoring system

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2101173U (en) * 1991-09-23 1992-04-08 王俊波 Short circuit protective mine lamp
US6608470B1 (en) * 1998-01-31 2003-08-19 Motorola, Inc. Overcharge protection device and methods for lithium based rechargeable batteries
CN2741254Y (en) * 2004-07-06 2005-11-16 谢建国 Movable charger of mobile telephone
CN2763691Y (en) * 2005-07-07 2006-03-08 张�诚 Telephone line connected lightning protection multi-function energy-saving desk lamp
CN201048299Y (en) * 2007-06-11 2008-04-16 珠海亿威电动车有限公司 Highly effective pulse charger for accumulator
CN201230282Y (en) * 2008-07-14 2009-04-29 江苏津恒能源科技有限公司 Auxiliary electric source actuating apparatus for solar photovoltaic combining inverter
CN201278461Y (en) * 2008-09-23 2009-07-22 中兴通讯股份有限公司 Radio frequency interference preventing mobile phone battery
CN201562992U (en) * 2009-11-24 2010-08-25 上海拓步企业发展有限公司 Quick charger for battery pack of rechargeable electric tool
CN202261003U (en) * 2011-10-14 2012-05-30 成都锐奕信息技术有限公司 Filtering device for battery
CN202663286U (en) * 2012-07-30 2013-01-09 成都锐奕信息技术有限公司 Filter circuit for filtering output voltage of battery

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2101173U (en) * 1991-09-23 1992-04-08 王俊波 Short circuit protective mine lamp
US6608470B1 (en) * 1998-01-31 2003-08-19 Motorola, Inc. Overcharge protection device and methods for lithium based rechargeable batteries
CN2741254Y (en) * 2004-07-06 2005-11-16 谢建国 Movable charger of mobile telephone
CN2763691Y (en) * 2005-07-07 2006-03-08 张�诚 Telephone line connected lightning protection multi-function energy-saving desk lamp
CN201048299Y (en) * 2007-06-11 2008-04-16 珠海亿威电动车有限公司 Highly effective pulse charger for accumulator
CN201230282Y (en) * 2008-07-14 2009-04-29 江苏津恒能源科技有限公司 Auxiliary electric source actuating apparatus for solar photovoltaic combining inverter
CN201278461Y (en) * 2008-09-23 2009-07-22 中兴通讯股份有限公司 Radio frequency interference preventing mobile phone battery
CN201562992U (en) * 2009-11-24 2010-08-25 上海拓步企业发展有限公司 Quick charger for battery pack of rechargeable electric tool
CN202261003U (en) * 2011-10-14 2012-05-30 成都锐奕信息技术有限公司 Filtering device for battery
CN202663286U (en) * 2012-07-30 2013-01-09 成都锐奕信息技术有限公司 Filter circuit for filtering output voltage of battery

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103280958A (en) * 2013-06-17 2013-09-04 成都荣耀科技有限公司 Filtration module of battery used in transformer substation environment temperature and humidity monitoring system

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Application publication date: 20130417