CN2898904Y - Stabilized power supply of electronic tube - Google Patents
Stabilized power supply of electronic tube Download PDFInfo
- Publication number
- CN2898904Y CN2898904Y CN 200620020114 CN200620020114U CN2898904Y CN 2898904 Y CN2898904 Y CN 2898904Y CN 200620020114 CN200620020114 CN 200620020114 CN 200620020114 U CN200620020114 U CN 200620020114U CN 2898904 Y CN2898904 Y CN 2898904Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- anode
- voltage
- tube
- circuit
- 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
A stabilized power supply of electronic tube connects the cathode and anode of the beam tetrode G1 with the negative electrode and positive electrode of the auxiliary power supply respectively, and also connects the positive electrode of the auxiliary power supply with the load resistance R2 of the comparable-amplifying tube G2 The utility model has good output timbre of sound device, insensitivity to transient short-circuit, high reliability, convenient maintenance, increased electric index, reduced high harmonic portion in output voltage, low amplitude of ripple voltage, low dynamic internal resistance of high frequency and low frequency and broadened high frequency response.
Description
Technical field
The utility model relates to a kind of electron tube stabilized voltage supply.
Background technology
At present, in the feed circuit of prime (a kind of stereo set) and the amplification of electron tube small-signal, generally adopt integrated circuit or transistor stabilized power supply, can make stereo set output good tone color, still, relatively poor, the easy instantaneous short circuit of reliability, maintenance is inconvenient.
Summary of the invention
The purpose of this utility model is to overcome the weak point that exists in the above-mentioned technology, and a kind of electron tube stabilized voltage supply of simple in structure, reasonable in design, good reliability is provided.
In order to achieve the above object, the technical solution adopted in the utility model is: beam tetrode G
1Negative electrode and anode join the anode of accessory power supply and amplifier tube G relatively respectively with the negative terminal and the anode of accessory power supply
2Pull-up resistor R
2Link to each other.
The utility model has the advantages that:
Adopt the utility model can make stereo set output good tone color, be not afraid of instantaneous short circuit, the reliability height, easy to maintenance, electric index improves, and the higher hamonic wave deal reduces in the output voltage, and ripple voltage amplitude is low, and high frequency, the dynamic internal resistance of low frequency are low, and high frequency response is widened.
Description of drawings
Fig. 1 is the utility model beam tetrode circuit theory diagrams;
Fig. 2 is the utility model five utmost point power transistor circuits schematic diagrams.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
By Fig. 1-Fig. 2 as can be known, the utility model is beam tetrode G
1Negative electrode and anode join the anode of accessory power supply and amplifier tube G relatively respectively with the negative terminal and the anode of accessory power supply
2Pull-up resistor R
2Link to each other.
Five utmost point power tube G
3Negative electrode and anode join the anode of accessory power supply and amplifier tube G relatively respectively with the negative terminal and the anode of accessory power supply
2Pull-up resistor R
2Link to each other.
The utility model stabilized voltage supply is made up of power transformer, main dc power supply circuit, auxiliary power circuit, adjustment circuit, comparison amplifying circuit, reference circuit, sample circuit.Power transformer becomes civil power into several groups of required alternating voltages.Wherein, supply with the main dc power supply circuit for first group, its essence is a current rectifying and wave filtering circuit, and the comparatively stable direct current of its output is applied to the anode of adjusting beam tetrode (five utmost point power tubes) G1.Second group of alternating voltage supplied with auxiliary power circuit, it also is a drag flow filtering circuit, the DC voltage of its output is applied between the screen grid and negative electrode of beam tetrode G1 (five utmost point power tube G3), guarantees that beam tetrode G1 (five utmost point power tube G3) is operated in the beam tetrode state.Electron tube G2 plays the comparison amplification, and voltage stabilizing diode D1 plays the benchmark effect, and potentiometer W1 plays sampling action, takes out fluctuation voltage from output end of pressure-stabilizing, by its central contact output.
The voltage stabilizing control procedure is as follows, the voltage of supposing output terminal output is unstable, raise such as fluctuation voltage, the voltage of this rising is imposed on the grid of electron tube G2 by the sliding contact of potentiometer so, the stable voltage locking that the negative electrode of G2 is provided by voltage stabilizing diode D1, therefore the screen rheology of G2 is big, and the screen pressure drop is low.The anode of G2 has been exported and has been fallen (reduction) voltage of phase, this voltage imposes on the grid of adjusting beam tetrode G1 (five utmost point power tube G3), so the negative electrode of beam tetrode G1 (five utmost point power tube G3) has been exported the voltage that reduces, the voltage inversion of the rising of this voltage and original hypothesis is so played the effect voltage stabilizing one by one that the voltage that raises is retracted.
Claims (2)
1. an electron tube stabilized voltage supply comprises beam tetrode, it is characterized in that: beam tetrode G
1Negative electrode and anode join the anode of accessory power supply and amplifier tube G relatively respectively with the negative terminal and the anode of accessory power supply
2Pull-up resistor R
2Link to each other.
2. electron tube stabilized voltage supply according to claim 1 is characterized in that: five utmost point power tube G
3Negative electrode and anode join the anode of accessory power supply and amplifier tube G relatively respectively with the negative terminal and the anode of accessory power supply
2Pull-up resistor R
2Link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620020114 CN2898904Y (en) | 2006-01-23 | 2006-01-23 | Stabilized power supply of electronic tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620020114 CN2898904Y (en) | 2006-01-23 | 2006-01-23 | Stabilized power supply of electronic tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2898904Y true CN2898904Y (en) | 2007-05-09 |
Family
ID=38074238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620020114 Expired - Fee Related CN2898904Y (en) | 2006-01-23 | 2006-01-23 | Stabilized power supply of electronic tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2898904Y (en) |
-
2006
- 2006-01-23 CN CN 200620020114 patent/CN2898904Y/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: 20070509 |