CN2161972Y - Low power consumption minisize speech sounds memory device - Google Patents
Low power consumption minisize speech sounds memory device Download PDFInfo
- Publication number
- CN2161972Y CN2161972Y CN 93221301 CN93221301U CN2161972Y CN 2161972 Y CN2161972 Y CN 2161972Y CN 93221301 CN93221301 CN 93221301 CN 93221301 U CN93221301 U CN 93221301U CN 2161972 Y CN2161972 Y CN 2161972Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- power consumption
- microminiature
- low
- storing unit
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Amplifiers (AREA)
Abstract
The utility model belongs to the technical field of sound recording-reproducing, in particular to a low power consumption miniature sound recording-reproducing device which is composed of a voltage detecting circuit, an electronic switch, a music reminding circuit, a power amplification circuit, a loudspeaker circuit, control chips, a recording and reproducing circuit and a dynamic memory. By the adoption of the advanced control chips Hibo-I and the dynamic memory, the utility model has the advantages of small size, low power consumption and long recording and reproducing time. By the adoption of the voltage detecting circuit, the stabile performance is ensured. The utility model is the sound secretary class product of a new generation and has broad development future.
Description
The utility model belongs to the speech recording and reproducing technical field.
Present domestic this device that still do not have, the most close product is a kind of " voice memo is thin ".Although prior art can be utilized voice record, broadcast information, yet exist that the control circuit element is many, playing time is short, weak effect, and Overall Power Consumption is all more than 60 milliwatts, volume is big, makes shortcomings such as carrying rather difficulty.And the people's bodyguard that uses this product proposes higher requirement to the performance and the quality of product, thus to the application of existing voice memo product stagnate for a long time the step not before.
The purpose of this utility model is to overcome weak point of the prior art, provides that a kind of playing time is long, low in energy consumption, volume is little, portable microminiature voice storing unit.
The utility model is made up of voltage control circuit, electronic switch, voice reminder circuit, power amplifier, speaker circuit, control chip playback circuitry and dynamic storage.
The utility model adopts voice recording and playback ic TC8831F, acoustic memory adopts dynamic storage, and controller adopts the large scale integrated chip of being produced by Xi'an Hai Bo company, mainly finishes the control to voice recording and playback ic, design voltage detecting circuit simultaneously, guaranteed the stable of voltage.
Below in conjunction with embodiment the utility model is further described:
Fig. 1 is the utility model example structure block diagram.
Fig. 2 is the utility model embodiment circuit diagram.
The utility model is made up of voltage detecting circuit 1, electronic switch 2, music alert circuit 3, power amplifier 4, speaker circuit 5, control chip 6, playback circuitry 7 and dynamic storage 8.
Voltage detecting circuit 1 is made of resistance R 1, R2, R3 and voltage stabilizing diode D1 and integrated circuit LM392, and resistance R 1 and voltage stabilizing diode D1 provide reference voltage for integrated circuit LM392, and resistance R 2, R3 provide the supply voltage situation for bleeder circuit.As cell voltage Vcc(4.8V) when dropping to a certain value, integrated circuit LM392 output changes issues control chip 6, and control chip operation reflection is to change battery.Electricity adopts TWH8778 in switch 2, and by control chip 6 controls, when music alert circuit 3 and power amplifier 4 needed power supply, 2 conductings of control chip 6 control electronic switches exported integrated circuit LM386, LM392 to, KD9300 is its power supply.The music alert circuit adopts the KD9300 integrated circuit, by control chip 6 controls.Power amplifier 4 is by capacitor C 1, C2, and variable resistor R4 and integrated circuit LM386 constitute.Speaker circuit 5 is by capacitor C 3, C4, resistance R 5, and loudspeaker S1 constitutes.Playback circuitry 7 is made of resistance R 6, capacitor C 5 and microphone MIC and recording and playback ic TC8831F, and resistance R 6, capacitor C 5, microphone MIC constitute microphone circuit, use its input audio signal.Dynamic storage 8 is 1M * 1 dynamic storage, with its stored sound signal.Control chip 6 adopts the Hibo-I type control chip of being produced by Xi'an Hai Bo company, finishes control to this device various piece by it.When the needs playing back music, the trigger end of music alert circuit 3 is triggered by control chip 6, power supply is provided by TWH8778, output is sent into the LM386 of power amplifier 4 through capacitor C 1 coupling, after deliver to speaker circuit and sound, when needs playback content, control chip 6 control recording and playback ic TC8831F, from dynamic storage 8 input audio signals, through the LM386 of capacitor C 2 coupling input power amplifiers 4, sounded by speaker circuit 5 in the back then.
The parameter of the used components and parts of present embodiment is as follows:
R1:50.5K Ω, R2:80.5K Ω, R3:26K Ω, R4:10K Ω, R5:10 Ω, R6:3.3K Ω; C1:3300P, C2:3.3 μ, C3:100 μ, C4:0.01 μ, C5:1 μ; D1:2.1V; The S1(loudspeaker): 8 Ω.
Because the large scale integrated circuit control chip Hibo-I that the utility model has adopted Xi'an Hai Bo company to produce, volume is less, and it can make this device cut off the electricity supply by electronic switch 2 automatically when not working simultaneously, so power consumption reduces greatly.The utility model adopts recording and playback ic TC8831F and dynamic storage (1M * 1), makes recording playback time lengthening, has the advantage that volume is little, low in energy consumption, the recording playback time is long, adopts voltage detecting circuit 1 to guarantee the stability of its performance.
Claims (6)
1, a kind of low-power consumption microminiature voice storing unit, it is characterized in that: it is made up of voltage detecting circuit (1), electronic switch (2), music alert circuit (3), power amplifier (4), speaker circuit (5), control chip (6), playback circuitry (7) and dynamic storage (8).
2, low-power consumption microminiature voice storing unit according to claim 1, it is characterized in that: described voltage detecting circuit (1) is by resistance R 1 50.5K Ω, R2 80.5K Ω, R3 26K Ω, and voltage stabilizing diode D1 2.1V and integrated circuit LM392 constitute; Electronic switch (2) adopts integrated circuit TWH8778; Music alert circuit (3) adopts integrated circuit KD9300.
3, low-power consumption microminiature voice storing unit according to claim 1 is characterized in that: described power amplifier (4) is by capacitor C 1 3300P, C2 3.3 μ, and resistance R 4 10K Ω and integrated circuit LM386 constitute.
4, low-power consumption microminiature voice storing unit according to claim 1 is characterized in that: described speaker circuit (5) is by capacitor C 3 100 μ, C4 0.01 μ, and resistance R 5 10 Ω and loudspeaker S1 constitute.
5, low-power consumption microminiature voice storing unit according to claim 1 is characterized in that: the Hibo-I type control chip that described control chip (6) adopts Xi'an Hai Bo company to produce.
6, low-power consumption microminiature voice storing unit according to claim 1 is characterized in that: described playback circuitry (7) is made of microphone circuit and the recording and playback ic TC8831F that resistance R 6 3.3K Ω, capacitor C 51 μ and microphone MIC form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93221301 CN2161972Y (en) | 1993-08-07 | 1993-08-07 | Low power consumption minisize speech sounds memory device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93221301 CN2161972Y (en) | 1993-08-07 | 1993-08-07 | Low power consumption minisize speech sounds memory device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2161972Y true CN2161972Y (en) | 1994-04-13 |
Family
ID=33800192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93221301 Expired - Fee Related CN2161972Y (en) | 1993-08-07 | 1993-08-07 | Low power consumption minisize speech sounds memory device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2161972Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390153A (en) * | 2014-08-21 | 2016-03-09 | 爱索尼克株式会社 | Low-power digital voice recorder |
-
1993
- 1993-08-07 CN CN 93221301 patent/CN2161972Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390153A (en) * | 2014-08-21 | 2016-03-09 | 爱索尼克株式会社 | Low-power digital voice recorder |
| CN105390153B (en) * | 2014-08-21 | 2019-06-28 | 爱索尼克株式会社 | Low-power consumption digital voice recorder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS54152436A (en) | Portable information unit | |
| CN201035807Y (en) | Heartbeat sphygmus simulator of anthropomorphic robot | |
| CN2161972Y (en) | Low power consumption minisize speech sounds memory device | |
| CN109782575A (en) | A kind of multi-functional alarm clock | |
| CN207502939U (en) | A kind of multi-functional alarm clock | |
| CN203666162U (en) | Intelligent voice recognition greeting card | |
| CN202101032U (en) | Aid-sleeping music table lamp | |
| CN201548817U (en) | Intelligent alarm clock | |
| CN201812282U (en) | Digital keyboard input type speech sound generating device | |
| CN102194498A (en) | Digital voice storing and replaying system based on field programmable gate array (FPGA) | |
| CN201571104U (en) | Telephone recording box | |
| CN207638886U (en) | A kind of number lithium electricity megaphone circuit | |
| CN2152275Y (en) | Speech digital word recorder | |
| CN201199449Y (en) | Vehicle-mounted Chinese display numeral acoustics player | |
| CN2906824Y (en) | Electronic voice card | |
| CN200972582Y (en) | Timing language prompt clock | |
| CN2263429Y (en) | Computer megaphone | |
| CN2417544Y (en) | MP3 digital type arrangement for recording/reproducing and after reading aloud | |
| CN201226088Y (en) | Multimedia alarm clock | |
| CN2333049Y (en) | Intelligence foreign language learning machine | |
| CN210578969U (en) | Video alarm clock player | |
| CN2449309Y (en) | Fully automatic electric recording/playing unit | |
| CN201402387Y (en) | Recording alarm clock | |
| CN205850214U (en) | A kind of voice cloth doll | |
| CN2234646Y (en) | Portable magnetic tape solid recording playback machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |