CN201113412Y - Medical equipment overvoltage voice cue circuit - Google Patents
Medical equipment overvoltage voice cue circuit Download PDFInfo
- Publication number
- CN201113412Y CN201113412Y CNU2007200259134U CN200720025913U CN201113412Y CN 201113412 Y CN201113412 Y CN 201113412Y CN U2007200259134 U CNU2007200259134 U CN U2007200259134U CN 200720025913 U CN200720025913 U CN 200720025913U CN 201113412 Y CN201113412 Y CN 201113412Y
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- CN
- China
- Prior art keywords
- circuit
- resistance
- diode
- resistor
- overvoltage
- 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
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Abstract
The utility model relates to a medical device overvoltage voice prompt circuit. The technical proposal is as follows: a resistor (R1), a diode (D1), a resistor (R2) and a capacitor (C2) are connected in series to form a power supply feed circuit; the resistor (R1), the diode (D1), resistors (R3 and R4) connected in parallel and the capacitor (C1) are connected in series and are respectively connected with an adjustable resistor (W), resistors (R5 and R6) and the capacitor (C3) by three paths to be accessed with an IC to form an overvoltage detecting circuit; the two parts of circuits form the voice prompt circuit together with an RL connected to an output terminal of the IC. The circuit is directly arranged on a device power supply to be monitored and sends the voice alarm prompt under the condition of over-high voltage of the power supply source; the treatment can be performed in time by a device user and the influence of the over-high voltage on the device is avoided.
Description
Technical field
The utility model relates to a kind of Medical Devices overvoltage voice warning circuit in the electrical equipment Medical Devices.
Background technology
Along with medical electric type detects and a large amount of uses of therapeutic equipment, usually because of line voltage breaks down power consumption equipment when unstable too high, even cause the damage of equipment, bring influence to normal operative treatment or deagnostic test.Present solution is to increase stabilized voltage power supply, and this just brings the problem of a use cost, and to some powerful equipment, stabilized voltage power supply also is difficult to satisfy the demand.
The utility model content
The purpose of this utility model is exactly the defective that exists at prior art, and a kind of simple and practical, with low cost, Medical Devices overvoltage voice warning circuit that can detect and provide warning immediately is provided.
Its technical scheme is: be composed in series power-supplying circuit by resistance (R1), diode (D1), resistance (R2), electric capacity (C2); By resistance (R1), diode (D1), with after parallel resistor (R3, R4), electric capacity (C1) are connected, divide three the tunnel to connect adjustable resistance (W), resistance (R5 and R6), electric capacity (C3) respectively and insert time-base circuit (IC) and form overvoltage detection circuit; Above-mentioned two parts circuit constitutes voice warning circuit jointly with the output alarming horn (RL) that is connected time-base circuit (IC).
Circuit of the present utility model directly is installed on the device power supply (DPS) that needs monitoring, under the situation that the power supply overtension occurs, sends the audio alert prompting immediately, and equipment user can in time be handled, and avoids because of overtension equipment being impacted.Its circuit structure is simple, and use cost is cheap, plays the purpose of safety, caution.
Description of drawings
Accompanying drawing is the circuit theory diagrams of the utility model embodiment.
Embodiment:
Be further described with regard to its circuit composition and operation principle below in conjunction with accompanying drawing:
Resistance R 1 connects diode D1, resistance R 2, capacitor C 2, forms power-supplying circuit; Resistance R 1 connects diode D1, resistance R 3, R4, adjustable resistance W, capacitor C 1; Time-base circuit IC (NE555) connects resistance R 5, R6, capacitor C 3 composition overvoltage detection circuits; RL is from audio record alarming loudspeaker (existing shaped article)
Energized is formed power-supplying circuit to forming overvoltage detection circuit by time-base circuit IC (NE555), resistance R 5, R6, capacitor C 3 and alarming horn RL provides power supply by resistance R 1, R2, capacitor C 2, diode D1; When supply voltage just often, the 6 pin voltages of time-base circuit IC (NE555) are lower than 2/3 of its supply power voltage, thus 3 pin of time-base circuit IC (NE555) output high level, alarming horn RL non-transformer and not reporting to the police;
When supply voltage surpassed safety value, the 6 pin voltages of time-base circuit IC (NE555) were higher than 2/3 of its supply power voltage, so the 3 pin output low levels of time-base circuit IC (NE555), alarming horn RL obtains power supply and sends warning; Adjustable resistance W is used to set alarming value.
Claims (1)
1, a kind of Medical Devices overvoltage voice warning circuit is characterized in that: be composed in series power-supplying circuit by resistance (R1), diode (D1), resistance (R2), electric capacity (C2); By resistance (R1), diode (D1), with after parallel resistor (R3, R4), electric capacity (C1) are connected, divide three the tunnel to connect adjustable resistance (W), resistance (R5 and R6), electric capacity (C3) respectively and insert time-base circuit (IC) and form overvoltage detection circuit; Above-mentioned two parts circuit constitutes voice warning circuit jointly with the output alarming horn (RL) that is connected time-base circuit (IC).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200259134U CN201113412Y (en) | 2007-07-31 | 2007-07-31 | Medical equipment overvoltage voice cue circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200259134U CN201113412Y (en) | 2007-07-31 | 2007-07-31 | Medical equipment overvoltage voice cue circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201113412Y true CN201113412Y (en) | 2008-09-10 |
Family
ID=39965157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200259134U Expired - Fee Related CN201113412Y (en) | 2007-07-31 | 2007-07-31 | Medical equipment overvoltage voice cue circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201113412Y (en) |
-
2007
- 2007-07-31 CN CNU2007200259134U patent/CN201113412Y/en not_active Expired - Fee Related
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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: 20080910 Termination date: 20090831 |