CN213693470U - Device suitable for low-power DC/DC voltage grade conversion - Google Patents
Device suitable for low-power DC/DC voltage grade conversion Download PDFInfo
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- CN213693470U CN213693470U CN202021789759.XU CN202021789759U CN213693470U CN 213693470 U CN213693470 U CN 213693470U CN 202021789759 U CN202021789759 U CN 202021789759U CN 213693470 U CN213693470 U CN 213693470U
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Abstract
The utility model discloses a device suitable for miniwatt DC/DC voltage level conversion, including the voltage conversion board, set up +24VDC on the voltage conversion board and change +10VDC control circuit and-14 VDC and change-8.2 VDC control circuit; the +24VDC to +10VDC control circuit comprises a resistor R1, a voltage regulator tube D1, an adjustable resistor R2 and an adjustable resistor R3; the resistor R1 is connected with the terminal 01 and the terminal 09 and then connected with a +24V input circuit, the voltage regulator tube D1 is connected with the resistor R1 and the terminal 02, and the adjustable resistor R2 and the adjustable resistor R3 are connected with the terminal 09. The device suitable for converting the low-power DC/DC voltage grade converts a direct-current power supply with high voltage absolute value into a low-power supply with low voltage absolute value according to the characteristics of the voltage-stabilizing tube, thereby being capable of being used and popularized in an electric control system of a drilling machine and having the advantages of stable and reliable performance, low cost and small installation space.
Description
Technical Field
The utility model relates to a DC/DC voltage conversion circuit technical field specifically is a device suitable for miniwatt DC/DC voltage level conversion.
Background
In the control system of the petroleum electric drilling machine, one path of standard 24VDC power supply is generated through purification, filtering and rectification and is used as a main power supply of a control circuit. Each link of a single system needs power supplies with various voltage grades to meet the requirements of various control signals of a control system, and the power is small but indispensable. There is a need for a simple and reliable DC/DC voltage level conversion scheme, but it is difficult to find power conversion modules in the market as small as milliamperes.
Disclosure of Invention
An object of the utility model is to provide a device suitable for miniwatt DC voltage level conversion converts the high DC power supply of voltage absolute value into the miniwatt power that voltage absolute value is low according to the stabilivolt characteristic to can use and promote in rig electrical system, have stable performance, reliable, the expense is low, the little advantage of installation space, can solve the problem among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme: a device suitable for low-power DC/DC voltage level conversion comprises a voltage conversion plate, wherein a +24VDC to +10VDC control circuit and a-14 VDC to-8.2 VDC control circuit are arranged on the voltage conversion plate;
the +24VDC to +10VDC control circuit comprises a resistor R1, a voltage regulator tube D1, an adjustable resistor R2 and an adjustable resistor R3;
wherein, the resistor R1 is connected with the terminal 01 and the terminal 09 and then connected with a +24V input circuit, the voltage regulator tube D1 is connected with the resistor R1 and the terminal 02, and the adjustable resistor R2 and the adjustable resistor R3 are connected with the terminal 09;
the-14 VDC to-8.2 VDC control circuit comprises a resistor R11, a resistor R12, a voltage regulator tube D11, a voltage regulator tube D12, an adjustable resistor R21 and an adjustable resistor R31; the resistance R11 is connected with the terminal 06 and the terminal 07 and then connected with the-14V input circuit, the resistance R12 is connected with the terminal 03 and the terminal 08 and then connected with the-14V input circuit, the voltage regulator tube D11 is connected with the resistance R11 and the terminal 06, the voltage regulator tube D12 is connected with the resistance R12 and the terminal 04, and the adjustable resistance R21 and the adjustable resistance R31 are connected with the terminal 08.
Preferably, the rated voltage of the voltage regulator tube D1 is 10V, and the rated voltage of the voltage regulator tube D11 and the voltage regulator tube D12 is 8.2V.
Preferably, the types of the adjustable resistor R2 and the adjustable resistor R3 are S0915, and the types of the adjustable resistor R21 and the adjustable resistor R31 are S0417.
Compared with the prior art, the beneficial effects of the utility model are as follows:
when the voltage stabilizing tube D1 passes through rated current, the voltage stabilizing effect is poor, and when the voltage stabilizing tube D1 passes through the rated current, the voltage stabilizing effect is poor, and when the voltage stabilizing tube D1 is higher than the value, the power loss is not exceeded, the stability is good; when the voltage stabilizing tubes D11 and D12 pass rated current, the voltage stabilizing effect is poor when the stable voltage value generated at the two ends is low, and when the stable voltage value is higher than the value and does not exceed power loss, the stability is good; therefore, the direct current power supply with high absolute value of voltage is converted into the low-power supply with low absolute value of voltage according to the characteristics of the voltage-stabilizing tube, so that the direct current power supply can be used and popularized in an electric control system of the drilling machine, and the direct current power supply has the advantages of stable and reliable performance, low cost and small installation space.
Drawings
Fig. 1 is a schematic view of a voltage converting plate according to the present invention;
FIG. 2 is a circuit diagram of the present invention from +24VDC to +10 VDC;
fig. 3 is a circuit diagram of the present invention for converting-14 VDC to-8.2 VDC.
In the figure: 1. a voltage conversion panel; 2. a +24VDC to +10VDC control circuit; 3. -14VDC to-8.2 VDC control circuit.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, an apparatus for low power DC/DC voltage level conversion includes a voltage conversion board 1, and a +24VDC to +10VDC control circuit 2 and a-14 VDC to-8.2 VDC control circuit 3 are disposed on the voltage conversion board 1.
The +24VDC to +10VDC control circuit 2 comprises a resistor R1, a voltage regulator tube D1, an adjustable resistor R2 and an adjustable resistor R3; the resistor R1 is connected with the terminal 01 and the terminal 09 and then connected with a +24V input circuit, the voltage regulator tube D1 is connected with the resistor R1 and the terminal 02, and the adjustable resistor R2 and the adjustable resistor R3 are connected with the terminal 09.
The-14 VDC to-8.2 VDC control circuit 3 comprises a resistor R11, a resistor R12, a voltage regulator tube D11, a voltage regulator tube D12, an adjustable resistor R21 and an adjustable resistor R31; the resistance R11 is connected with the terminal 06 and the terminal 07 and then connected with the-14V input circuit, the resistance R12 is connected with the terminal 03 and the terminal 08 and then connected with the-14V input circuit, the voltage regulator tube D11 is connected with the resistance R11 and the terminal 06, the voltage regulator tube D12 is connected with the resistance R12 and the terminal 04, and the adjustable resistance R21 and the adjustable resistance R31 are connected with the terminal 08.
Since the rated voltage of the zener diode D1 is 10V, when the value of the stabilized voltage generated at both ends of the zener diode D1 passes through the rated current is low, the voltage stabilizing effect is deteriorated, and when the value is higher than the value, the power loss is not exceeded, and the stability is good.
Because the rated voltage of the voltage-regulator tube D11 and the voltage-regulator tube D12 is 8.2V, when the voltage-regulator tube D11 and the voltage-regulator tube D12 pass rated current, the voltage-stabilizing effect is poor when the voltage-stabilizing value generated at the two ends is low, and when the voltage-regulator tube D11 and the voltage-regulator tube D12 pass the rated current, the power loss is not exceeded, and the stability is good.
The model of the adjustable resistor R2 and the adjustable resistor R3 is S0915, and the model of the voltage stabilizing tube adjustable resistor R21 and the adjustable resistor R31 is S0417; the resistance value of the resistor is adjusted through the adjustable resistor of the type, so that the current is reduced.
When the voltage stabilizing tube D1 passes through rated current, the voltage stabilizing effect is poor, and when the voltage stabilizing tube D1 passes through the rated current, the voltage stabilizing effect is poor, and when the voltage stabilizing tube D1 is higher than the value, the power loss is not exceeded, the stability is good; when the voltage-stabilizing tubes D11 and D12 pass rated current, the voltage-stabilizing effect is poor when the stable voltage value generated at two ends is low, and when the stable voltage value is higher than the voltage value, the power loss is not exceeded, and the stability is good.
Therefore, the direct current power supply with high absolute value of voltage is converted into the low-power supply with low absolute value of voltage according to the characteristics of the voltage-stabilizing tube, so that the direct current power supply can be used and popularized in an electric control system of the drilling machine, and the direct current power supply has the advantages of stable and reliable performance, low cost and small installation space.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. An arrangement suitable for low power DC/DC voltage level conversion, comprising a voltage conversion board (1), characterized in that: a +24VDC to +10VDC control circuit (2) and a-14 VDC to-8.2 VDC control circuit (3) are arranged on the voltage conversion plate (1);
the +24 VDC-to- +10VDC control circuit (2) comprises a resistor R1, a voltage regulator tube D1, an adjustable resistor R2 and an adjustable resistor R3; wherein, the resistor R1 is connected with the terminal 01 and the terminal 09 and then connected with a +24V input circuit, the voltage regulator tube D1 is connected with the resistor R1 and the terminal 02, and the adjustable resistor R2 and the adjustable resistor R3 are connected with the terminal 09;
the-14 VDC-to-8.2 VDC control circuit (3) comprises a resistor R11, a resistor R12, a voltage regulator tube D11, a voltage regulator tube D12, an adjustable resistor R21 and an adjustable resistor R31; the resistance R11 is connected with the terminal 06 and the terminal 07 and then connected with the-14V input circuit, the resistance R12 is connected with the terminal 03 and the terminal 08 and then connected with the-14V input circuit, the voltage regulator tube D11 is connected with the resistance R11 and the terminal 06, the voltage regulator tube D12 is connected with the resistance R12 and the terminal 04, and the adjustable resistance R21 and the adjustable resistance R31 are connected with the terminal 08.
2. The apparatus of claim 1, wherein the DC/DC converter is adapted to convert a low power DC voltage level, and the apparatus further comprises: the rated voltage of the voltage regulator tube D1 is 10V, and the rated voltage of the voltage regulator tube D11 and the voltage regulator tube D12 is 8.2V.
3. The apparatus of claim 1, wherein the DC/DC converter is adapted to convert a low power DC voltage level, and the apparatus further comprises: the types of the adjustable resistor R2 and the adjustable resistor R3 are S0915, and the types of the adjustable resistor R21 and the adjustable resistor R31 are S0417.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021789759.XU CN213693470U (en) | 2020-08-21 | 2020-08-21 | Device suitable for low-power DC/DC voltage grade conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021789759.XU CN213693470U (en) | 2020-08-21 | 2020-08-21 | Device suitable for low-power DC/DC voltage grade conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213693470U true CN213693470U (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021789759.XU Active CN213693470U (en) | 2020-08-21 | 2020-08-21 | Device suitable for low-power DC/DC voltage grade conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213693470U (en) |
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2020
- 2020-08-21 CN CN202021789759.XU patent/CN213693470U/en active Active
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