CN200969573Y - AC touch-type switch circuit - Google Patents
AC touch-type switch circuit Download PDFInfo
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- CN200969573Y CN200969573Y CN 200620067796 CN200620067796U CN200969573Y CN 200969573 Y CN200969573 Y CN 200969573Y CN 200620067796 CN200620067796 CN 200620067796 CN 200620067796 U CN200620067796 U CN 200620067796U CN 200969573 Y CN200969573 Y CN 200969573Y
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Abstract
The utility model is an ac touch type switch circuit including a power supply input and output circuit, an ac relay, a high pressure rectifier filtering circuit without electrolysis capacitance, an electronic stable pressure filtering circuit, an output rectifier stable pressure circuit, a dc relay; the utility model is characterized in that the switch circuit also includes a touch control circuit, the ac relay is connected between the power supply input circuit and the power supply output circuit, after the ac relay is connected with the high pressure rectifier filtering circuit without electrolysis capacitance, the output voltage is transmitted to the electronic stable pressure filtering circuit to power the touch control circuit, at the same time, the control current in the touch control circuit forms a feedback circuit through the stable pressure filtering circuit and high pressure rectifier filtering circuit without electrolysis capacitance, the current feedbacks to the ac relay to make the relay connected and output voltage, at the same time after passing through a another output rectifier stable pressure circuit, the voltage provides a voltage which is used to close the ac relay for the touch control circuit and the dc relay. The standby power consumption of the ac touch type switch circuit is less than 0.2W; the utility model uses the delay circular control circuit so the control of the circuit is more convenient.
Description
Technical field
The utility model relates to a kind of switching circuit, particularly a kind of interchange contact witch circuit.
Background technology
Mains switch all was to adopt armstrong's patent formula switch when present most electrical equipment used alternating current work, and the invention that exchanges the contact witch circuit changes traditional switching mode, uses more convenient.
Summary of the invention
The purpose of this utility model is to provide one group of switching circuit.The purpose of this utility model is to be achieved by following technical scheme:
A kind of interchange contact witch circuit comprises power supply imput output circuit, AC relay, high-voltage rectifying no electrolytic capacitor filter circuit, electronic regulation filter circuit, output regulator rectifier circuit, direct current relay; It is characterized in that: also comprise touch control circuit, described AC relay is connected between the power supply imput output circuit, AC relay is with after high-voltage rectifying no electrolytic capacitor filter circuit is connected, the voltage transmission of output is to the electronic regulation filter circuit, provide voltage to touch control circuit, the Control current of touch control circuit is through filter circuit of pressure-stabilizing simultaneously, the high-voltage rectifying filter circuit forms feedback loop, current feedback is to AC relay, make its relay conducting, output voltage output, simultaneously voltage is behind another output regulator rectifier circuit, closes AC relay voltage for touch control circuit and direct current relay provide again.
Described touch control circuit, comprise that mainly capacitor C 10, resistance R 3, diode D7, field effect transistor Q1, touch element A form, touch element A contacts with the positive pole of capacitor C 10, resistance R 3 and diode D7 successively, the negative pole of diode is connected with the grid of field effect transistor Q1, the source electrode of field effect transistor is connected with the electronic regulation filter circuit with the output regulator rectifier circuit, and drain electrode links to each other with the negative pole of electronic regulation filter circuit.
Described touch control circuit also comprises the delayed type circulating controling circuit, described delayed type loop control mainly comprises Light Coupled Device N1, Light Coupled Device N2, triode T2, resistance R 4, direct current relay DL2 forms, the positive pole of power supply output rectifying and voltage-stabilizing filter circuit is connected with an end of the coil of direct current relay, the other end of direct current relay links to each other with input 1 pin of the interior light-emitting diode electricity of Light Coupled Device N2, output 2 pin of light-emitting diode electricity are connected with the collector electrode of triode T2 in the Light Coupled Device N2, input 4 pin of photoconduction energising are connected with the base stage of triode T1 in the Light Coupled Device N2, and output 3 pin of photoconduction energising are connected with the negative pole of electronic regulation filter circuit in the Light Coupled Device N2; The b utmost point of triode T2 is connected with output 3 pin of photoconduction energising in the Light Coupled Device N1, emitter e links to each other with the negative pole of output regulator rectifier circuit, input 4 pin of photoconduction energising are connected with the positive pole of output regulator rectifier circuit in the Light Coupled Device N1, input 1 pin of light-emitting diode electricity links to each other with electronic regulation filter circuit output in the Light Coupled Device N1, and output 2 pin of light-emitting diode electricity are connected with the source electrode of the field effect transistor Q1 of touch element circuit A in the Light Coupled Device N1.
Described touch control circuit, form by two-way touch element circuit, described wherein one road touch element circuit comprises that mainly capacitor C 10, resistance R 3, diode D7, field effect transistor Q1, touch element A form, touch element A contacts successively with the positive pole of capacitor C 10, resistance R 3 and diode D7, the negative pole of diode D7 is connected with the grid of field effect transistor Q1, the source electrode of field effect transistor Q1 is connected with the output of electronic regulation filter circuit, and drain electrode is connected with the negative pole of electronic regulation filter circuit; Another road touch element circuit wherein, comprise that capacitor C 11, resistance R 4, diode D8, field effect transistor Q2, touch point B form, touch point B is connected in series with the positive pole of capacitor C 11, resistance R 4 and diode D8 successively, the negative pole of diode is connected with the grid of field effect transistor Q2, the source electrode of field effect transistor Q2 is connected with the output cathode of output regulator rectifier circuit, be connected with direct current relay, drain electrode is connected with the output regulator rectifier circuit again.The touch point A that exchanges touch switch circuit connects with C10, R4, D7, and the induced current of human body provides an amount of triggering starting current by C10, R4, D7 for the grid G of field effect transistor Q2; The unilateal conduction of diode D7, the human body safety that is isolated into of the current limliting of resistance R 4, capacitor C 10 provides triple protection.
Described high-voltage rectifying filter circuit adopts common porcelain Jie filter capacitor.Have only the electric capacity of few capacity to make interchange contact witch circuit operate as normal as High frequency filter at circuit.Ifs circuit inserts electrochemical capacitor in high-voltage rectifying output and makes filter capacitor, and electric capacity all can charge in circuit, and its electric current all can change alternating current into by rectification.Be enough to promote S-K1 in AC relay DL1 generation, the closed path of S-K2 makes it can not enter holding state.So in stand-by circuit, do not establish the hv filtering electrochemical capacitor.
The utlity model has following advantage:
(1) the circuit stand-by power consumption is few, can save electricity consumption;
(2) adopt the delayed type cycling circuit, circuit control is more convenient;
(3) can be divided into two contact witch circuit and a contact witch circuit.
In exchanging the contact witch circuit, it is the key point that stand-by circuit enters holding state as filter capacitor that electrochemical capacitor is not established in the output of the high-voltage rectifying of stand-by circuit simultaneously.Entire circuit is easy to use, can be applicable to the usefulness that various electrical equipment are made alternating-current switch.
Description of drawings
Fig. 1 exchanges the circuit block diagram of contact witch circuit for the utility model;
Fig. 2 is the connection line schematic diagram of a contact witch circuit for the utility model exchanges contact witch circuit embodiments one;
Fig. 3 is the connection line schematic diagram of two contact witch circuit for the utility model exchanges contact witch circuit embodiments two.
Embodiment
Embodiment one
As Fig. 1, interchange contact witch circuit shown in Figure 2, comprise the power supply imput output circuit, AC relay, high-voltage rectifying no electrolytic capacitor filter circuit, the electronic regulation filter circuit, the output regulator rectifier circuit, direct current relay and touch control circuit, described AC relay is connected between the power supply imput output circuit, AC relay is with after high-voltage rectifying no electrolytic capacitor filter circuit is connected, the voltage transmission of output is to the electronic regulation filter circuit, provide voltage to touch control circuit, the Control current of touch control circuit is through filter circuit of pressure-stabilizing simultaneously, the high-voltage rectifying filter circuit forms feedback loop, current feedback is to AC relay, make its relay conducting, output voltage output, simultaneously voltage is behind another output regulator rectifier circuit, closes AC relay voltage for touch control circuit and direct current relay provide again.
Be illustrated in figure 2 as a contact witch circuit, it comprises 220V AC relay, 6V direct current relay, power supply imput output circuit, high-voltage rectifying no electrolytic capacitor filter circuit, electronic regulation filter circuit, output regulator rectifier circuit and touch control circuit, described touch control circuit, mainly comprise touch element A, capacitor C 10, resistance R 3, diode D7, field effect transistor Q1, they are in series successively; Also comprise by Light Coupled Device N1, Light Coupled Device N2 triode T2, resistance R 4, the delayed type circulating controling circuit that direct current relay DL2 forms.Direct current relay DL2 forms, the positive pole of power supply output rectifying and voltage-stabilizing filter circuit is connected with an end of the coil of direct current relay, the other end of direct current relay links to each other with input 1 pin of the interior light-emitting diode electricity of Light Coupled Device N2, output 2 pin of light-emitting diode electricity are connected with the collector electrode of triode T2 in the Light Coupled Device N2, input 4 pin of photoconduction energising are connected with the base stage of triode T1 in the Light Coupled Device N2, and output 3 pin of photoconduction energising are connected with the negative pole of electronic regulation filter circuit in the Light Coupled Device N2; The b utmost point of triode T2 is connected with output 3 pin of photoconduction energising in the Light Coupled Device N1, emitter e links to each other with the negative pole of output regulator rectifier circuit, input 4 pin of photoconduction energising are connected with the positive pole of output regulator rectifier circuit in the Light Coupled Device N1, input 1 pin of light-emitting diode electricity links to each other with electronic regulation filter circuit output in the Light Coupled Device N1, and output 2 pin of light-emitting diode electricity are connected with the source electrode of the field effect transistor Q1 of touch element circuit A in the Light Coupled Device N1.The course of work of the entire circuit of one contact witch circuit is described consistent with Fig. 1, below is the description of its operation principle:
When circuit enters holding state, human hand or hand take various conductive bodies that its contact is contacted, when the grid G of field effect transistor Q1 obtains the triggering starting current of capacity, the source S of field effect transistor Q1, the drain D conducting, circuital current increases, increase electric current and press the reverse program increase of circuit, field effect transistor Q1 electric current increases, and the led current in the Light Coupled Device N1 increases, lumination of light emitting diode, triode T1 electric current increases, the alternating current of regulator rectifier circuit 2BG1 increases, and the alternating current of AC relay DL1 increases, the closed conducting of S-K1, S-K2.Contact 2,4 output AC voltages, contact 5 are connected with resistance R 4, DL1 and are formed the secondary AC loop of AC relay DL1.Resistance R 4 is a current-limiting resistance, keeps the closed electric current of keeping for AC relay provides, the stable output of circuit.
When circuit output stablize, the resistance R 4 formation ac circuit of connect with DL1, while resistance R 4 and the ac input end of rectification 2BG1 formed in parallel, and consistent with the pressure drop of R4, regulator rectifier circuit 2BG1 exports secondary standby voltage.Because above-mentioned work all is to finish in moment, the triggering starting current of the grid G of field effect transistor Q1 disappears at short notice automatically, and source S, drain D are by entering the secondary standby.
The power supply of output passes through the step-down of resistance R 5, the rectification of regulator rectifier circuit 2BG2, and voltage stabilizing didoe D8, simple low-voltage filter power supply is formed in capacitor C 11, C12 filtering; One the tunnel flows directly to input 4 pin of photoconduction energising in the Light Coupled Device N1; Another road flows into input 1 pin of light-emitting diode electricity in the Light Coupled Device N2 by direct current relay DL2, the output of 2 pin, flow to the collector electrode of triode T2, this moment, the base stage b of triode T2 did not provide current/voltage, collector electrode c, emitter e to end, the emitter of triode T2 connects rectification 2BG2 output negative pole, circuit does not have current circuit, enters wait state to be shut down.
When people need shut down, only need once more touch contact A just can shut down.
When people carry out touching the first time with hand, grid to field effect transistor Q1 obtains starting current, source S, drain D conducting, hand is taken away back source S, drain electrode automatic cut-off after the regular hour, people touch once more to trigger once more and start conducting, the luminous once more conducting of light-emitting diode in the Light Coupled Device N1.At this moment, the input 4 pin power supply of photoconduction energising in the Light Coupled Device N1, the base stage that is output as triode T2 by output 3 pin of photoconduction energising provides bias current voltage, the collector electrode c of triode T2, emitter e conducting electric current increase, light-emitting diode conducting in the Light Coupled Device N2 is luminous, direct current relay DL2 promotes the S-K3 action and disconnects, the alternating current that AC relay DL1 keeps work can not form the loop, quits work, and alternating current stops output; Simultaneously, in the Light Coupled Device N2 during lumination of light emitting diode, the photoconduction siphunculus conducting in the Light Coupled Device N2, its electric current is flowed to the negative pole of regulator rectifier circuit 2BG1 by the base stage b of triode T1, make the base stage of triode T1 not have current/voltage, the collector electrode c of triode T1, emitter e are ended.In the regular hour, make shutdown and the stand-by time can not be overlapping, otherwise shutdown become switch moment; The time of Chu Moing can not be grown once more, otherwise also can enter open state, field effect transistor Q1, Light Coupled Device N1, N2, triode T2, triode T1, resistance R 1, R2, diode D5, D6, capacitor C 6, C7, C8, C9 form, the delayed type circulating controling circuit is realized a contact witch circuit.
Embodiment two
As shown in Figure 3 be two contact witch circuit, different is with embodiment one for it: its touch control circuit is made up of two-way touch element circuit, wherein one road touch element circuit mainly comprises capacitor C 10, resistance R 3, diode D7, field effect transistor Q1, touch element A forms, touch element A successively with capacitor C 10, the positive pole polyphone of resistance R 3 and diode D7, the negative pole of diode D7 is connected with the grid of field effect transistor Q1, the source electrode of field effect transistor Q1 is connected with the output of electronic regulation filter circuit, and drain electrode is connected with the negative pole of electronic regulation filter circuit; Another road touch element circuit wherein, comprise that capacitor C 11, resistance R 4, diode D8, field effect transistor Q2, touch point B form, touch point B is connected in series with the positive pole of capacitor C 11, resistance R 4 and diode D8 successively, the negative pole of diode is connected with the grid of field effect transistor Q2, the source electrode of field effect transistor Q2 is connected with the output cathode of output regulator rectifier circuit, be connected with direct current relay, drain electrode is connected with the output regulator rectifier circuit again.Now its course of work is described below:
The switching circuit of described two touch points, the input one tunnel of power supply is connected with the end of DL1 with the AC relay S-K1 of five contacts and is connected, flow to the contact 5 of the S-K3 of direct current relay until AC relay by DL1 one tunnel, another road flows to the interchange of regulator rectifier circuit 2BG1 and imports end input; Another road of power supply input AC relay S-K2 exchanges the input of the input other end with input rectifying voltage stabilizing circuit 2BG1, the high voltage source that regulator rectifier circuit 2BG1 output is positive and negative, do not establish collector electrode that electrochemical capacitor filtering one tunnel directly import triode T1 in the circuit this moment, also import positive pole and the capacitor C 6 of light-emitting diode D5 (power supply indicator) simultaneously by resistance R 1, the b utmost point of the positive pole of C7 and triode T1, the output of light-emitting diode D5 negative pole flows into regulator rectifier circuit 2BG1 output negative pole by resistance R 2, voltage stabilizing didoe D6 is in parallel with resistance R 2, voltage stabilizing circuit provides the bias voltage electric current, triode T1 for the base stage of triode T1, resistance R 1, R2, light-emitting diode D5, voltage stabilizing didoe D6, capacitor C 6, C7 forms the electronic regulation filter circuit.Voltage stabilizing output low-tension supply, low-tension supply is by the emitter output of triode T1, and C8, C9 are filter capacitor, the source S of low-tension supply input field effect transistor Q1, the field effect transistor drain electrode is connected with output negative pole.This moment, the grid G of field effect transistor Q1 did not provide triggering starting resistor current circuit, source electrode, and drain electrode does not have electric current by ending, and the above-mentioned course of work all is to finish in moment to have only resistance R 1 and R2, diode D5 and D6 to form DC loop in the circuit.Have only lumination of light emitting diode, electric current is few, and the alternating current that flows through AC relay DL1 is corresponding to it, and electric current is not enough to promote the closed conducting of S-K1, S-K2 less, thereby enters holding state.Trigger control field effect transistor source S by touching circuit element in stand-by circuit, the conducting electric current of drain electrode causes the closed output AC power source of AC relay switch.
When stand-by circuit enters holding state, the human hand touches its contact A, and the induced current of human body provides the triggering starting current by capacitor C 10, resistance R 3, diode D7 for field effect transistor Q1 grid G, source S, drain electrode conducting, electric current increases, and series current is consistent in circuit.The collector electrode c of triode T1, the electric current of emitter e increases, and the electric current of regulator rectifier circuit 2BG1 increases, and the electric current that flows through AC relay DL1 increases relay S-K1, the action closure of S-K2.Alternating current is 2,4 outputs in the contact, and contact 5 outputs are formed the holding circuit work of keeping AC relay work by direct current relay S-K3's with AC relay DL1, exchange stable output.
The stable output of circuit working is exported low-tension supply by resistance R 5, regulator rectifier circuit 2BG2, capacitor C 12, capacitor C 13, diode D9, low-tension supply positive electricity input direct current relay DL2, the source S of output input field effect transistor Q2, drain D is connected with 2BG2 output negative electricity, grid G does not provide in circuit and triggers the starting resistor electric current, source S, drain D is ended, and electrochemical capacitor C12 charging enters operating state to be shut down.
When the people shuts down to it, induced current with hand touch contact B human body provides the triggering starting current by capacitor C 11, resistance R 4, diode D8 to the grid of field effect transistor Q2, source S, drain D conducting electric current increase, can promote the action disconnection of S-K3 in the energy of direct current relay after capacitor C 12 chargings in moment, direct current relay S-K3 when moment disconnects, AC relay DL1 keeps operating current can not the loop, quits work.S-K1, the disconnection of S-K2, alternating current stops output, and circuit is replied holding state.
For above-mentioned two embodiment, in touch interchange touch switch circuit, must adopt metal and its circuit of ferrous metal formula band resistance magnetic to isolate in the touch element circuit, or shielding, otherwise in circuit, produce magnetoelectricity resonance.
Claims (5)
1. one kind exchanges the contact witch circuit, comprises power supply imput output circuit, AC relay, high-voltage rectifying no electrolytic capacitor filter circuit, electronic regulation filter circuit, output regulator rectifier circuit, direct current relay; It is characterized in that: also comprise touch control circuit, described AC relay is connected between the power supply imput output circuit, AC relay is with after high-voltage rectifying no electrolytic capacitor filter circuit is connected, the voltage transmission of output is to the electronic regulation filter circuit, provide voltage to touch control circuit, the Control current of touch control circuit is through filter circuit of pressure-stabilizing simultaneously, the high-voltage rectifying filter circuit forms feedback loop, current feedback is to AC relay, make its relay conducting, output voltage output, simultaneously voltage is behind another output regulator rectifier circuit, closes AC relay voltage for touch control circuit and direct current relay provide again.
2. interchange contact witch circuit according to claim 1, it is characterized in that: described touch control circuit, comprise that mainly capacitor C 10, resistance R 3, diode D7, field effect transistor Q1, touch element A form, touch element A contacts with the positive pole of capacitor C 10, resistance R 3 and diode D7 successively, the negative pole of diode is connected with the grid of field effect transistor Q1, the source electrode of field effect transistor is connected with the electronic regulation filter circuit with the output regulator rectifier circuit, and drain electrode links to each other with the negative pole of electronic regulation filter circuit.
3. interchange contact witch circuit according to claim 2, it is characterized in that: described touch control circuit also comprises the delayed type circulating controling circuit, described delayed type loop control mainly comprises Light Coupled Device N1, Light Coupled Device N2, triode T2, resistance R 4, direct current relay DL2 forms, the positive pole of power supply output rectifying and voltage-stabilizing filter circuit is connected with an end of the coil of direct current relay, the other end of direct current relay links to each other with input 1 pin of the interior light-emitting diode electricity of Light Coupled Device N2, output 2 pin of light-emitting diode electricity are connected with the collector electrode of triode T2 in the Light Coupled Device N2, input 4 pin of photoconduction energising are connected with the base stage of triode T1 in the Light Coupled Device N2, and output 3 pin of photoconduction energising are connected with the negative pole of electronic regulation filter circuit in the Light Coupled Device N2; The b utmost point of triode T2 is connected with output 3 pin of photoconduction energising in the Light Coupled Device N1, emitter e links to each other with the negative pole of output regulator rectifier circuit, input 4 pin of photoconduction energising are connected with the positive pole of output regulator rectifier circuit in the Light Coupled Device N1, input 1 pin of light-emitting diode electricity links to each other with electronic regulation filter circuit output in the Light Coupled Device N1, and output 2 pin of light-emitting diode electricity are connected with the source electrode of the field effect transistor Q1 of touch element circuit A in the Light Coupled Device N1.
4. interchange contact witch circuit according to claim 1, it is characterized in that: described touch control circuit, form by two-way touch element circuit, described wherein one road touch element circuit mainly comprises capacitor C 10, resistance R 3, diode D7, field effect transistor Q1, touch element A forms, touch element A successively with capacitor C 10, the positive pole polyphone of resistance R 3 and diode D7, the negative pole of diode D7 is connected with the grid of field effect transistor Q1, the source electrode of field effect transistor Q1 is connected with the output of electronic regulation filter circuit, and drain electrode is connected with the negative pole of electronic regulation filter circuit; Another road touch element circuit wherein, comprise that capacitor C 11, resistance R 4, diode D8, field effect transistor Q2, touch point B form, touch point B is connected in series with the positive pole of capacitor C 11, resistance R 4 and diode D8 successively, the negative pole of diode is connected with the grid of field effect transistor Q2, the source electrode of field effect transistor Q2 is connected with the output cathode of output regulator rectifier circuit, be connected with direct current relay, drain electrode is connected with the output regulator rectifier circuit again.
5, interchange contact witch circuit according to claim 1 is characterized in that: described high-voltage rectifying filter circuit adopts common porcelain Jie filter capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620067796 CN200969573Y (en) | 2006-11-16 | 2006-11-16 | AC touch-type switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620067796 CN200969573Y (en) | 2006-11-16 | 2006-11-16 | AC touch-type switch circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200969573Y true CN200969573Y (en) | 2007-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620067796 Expired - Fee Related CN200969573Y (en) | 2006-11-16 | 2006-11-16 | AC touch-type switch circuit |
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| Country | Link |
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| CN (1) | CN200969573Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262469A (en) * | 2015-09-22 | 2016-01-20 | 刘伟 | Gradient type dynamic capacitor with decade switch, motor control device and vehicle production line |
| CN107979793A (en) * | 2017-12-18 | 2018-05-01 | 佛山市创思特音响有限公司 | A kind of speaker for touching start |
| CN110223617A (en) * | 2019-06-04 | 2019-09-10 | 惠州市力天科技有限公司 | A kind of control circuit and driving method of touch one-piece machine external equipment |
-
2006
- 2006-11-16 CN CN 200620067796 patent/CN200969573Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105262469A (en) * | 2015-09-22 | 2016-01-20 | 刘伟 | Gradient type dynamic capacitor with decade switch, motor control device and vehicle production line |
| CN107979793A (en) * | 2017-12-18 | 2018-05-01 | 佛山市创思特音响有限公司 | A kind of speaker for touching start |
| CN110223617A (en) * | 2019-06-04 | 2019-09-10 | 惠州市力天科技有限公司 | A kind of control circuit and driving method of touch one-piece machine external equipment |
| CN110223617B (en) * | 2019-06-04 | 2023-06-27 | 惠州市力天科技有限公司 | Control circuit and driving method of external equipment of touch integrated machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071031 Termination date: 20101116 |