CN208015592U - A kind of driving power circuit - Google Patents
A kind of driving power circuit Download PDFInfo
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- CN208015592U CN208015592U CN201820060843.4U CN201820060843U CN208015592U CN 208015592 U CN208015592 U CN 208015592U CN 201820060843 U CN201820060843 U CN 201820060843U CN 208015592 U CN208015592 U CN 208015592U
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Abstract
The utility model is related to power circuit technical fields, disclose a kind of driving power circuit, including：Input circuit and regulator circuit, the input circuit is connect with external power supply, and power supply is adjusted by transformer, the secondary side of transformer is output to regulator circuit, by regulator circuit linear voltage stabilization, stable voltage is exported, linear voltage stabilization is carried out to the positive pressure of power supply by positive activation type transformer, the stability and reliability of driving power are improved, and cost is relatively low.
Description
Technical field
The utility model is related to power circuit technical field more particularly to a kind of driving power circuits.
Background technology
Currently, IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar crystal on the market
Pipe) driving power mostly use multichannel inverse-excitation type switch power-supply power supply, output voltage has fluctuation, unstable, so can generally increase
Regulator circuit, and regulator circuit uses the voltage regulation way of zener diode, only steady negative pressure, because zener diode breakdown current compared with
Small, spread of voltage, when voltage fluctuation, shows as positive pressure fluctuation.Many occasion IGBT caused by driving voltage shakiness are damaged, into
And cause machine aircraft bombing.
Utility model content
The main purpose of the utility model is that a kind of driving power circuit is proposed, by positive activation type transformer to power supply
Positive pressure carries out linear voltage stabilization, improves the stability and reliability of driving power, and cost is relatively low.
To achieve the above object, a kind of driving power circuit provided by the utility model, including：Input circuit and voltage stabilizing electricity
Road, the input circuit are connect with external power supply, and power supply is adjusted by transformer, and the secondary side of transformer is output to surely
Volt circuit exports stable voltage by regulator circuit linear voltage stabilization.
Optionally, the input circuit includes：Capacitance C30, diode D17 and transformer T2, wherein the one of capacitance C30
The anode with diode D17 is held to be grounded together, the primary side pin 1 of transformer T2 connects the cathode of diode D17, transformer T2's
Primary side pin 3 is connected to external power supply+15BT together with the other end of capacitance C30, and the primary side pin 5 of transformer T2 connects TF
End.
Optionally, the parameter of the capacitance C30 is：4.7uF/25V/1206/X7R/10%.
Optionally, the transformer T2 is normal shock transformer, the former pair side proof voltage 5KV of the transformer T2.
Optionally, the regulator circuit includes：Diode D15, diode D19, diode ZD3, diode ZD5, resistance
R59, resistance R61, triode Q11, triode Q13, triode Q15, triode Q17, capacitance EC2, capacitance EC4, capacitance EC6,
Capacitance EC7, capacitance C47, capacitance C49, capacitance C51 and capacitance C53, wherein the secondary side of the anode and transformer T2 of diode D15
Pin 10 connects, the cathode of diode D15 and the cathode of diode ZD3, the collector of triode Q13, capacitance EC4 one end and
One end of capacitance C49 is connected together as voltage output end 15V-C, the other end of diode ZD3 and one end of resistance R59,
The base stage of triode Q13 and the base stage of triode Q11 link together, the transmitting of the emitter and triode Q11 of triode Q13
Pole, the other end of capacitance EC4, one end of capacitance EC2, the other end of capacitance C49 and capacitance C47 one end link together, electricity
Hinder the other end and capacitance of the other end of R59 and the secondary side pin 9 of transformer T2, the collector of triode Q11, capacitance EC2
The other end of C47 is connected together as voltage output end -10V-C；The anode of diode D19 is managed with the secondary side of transformer T2
Foot 7 connects, cathode and the cathode of diode ZD5, the collector of triode Q17, one end of capacitance EC7 and the electricity of diode D19
The one end for holding C53 is connected together as voltage output end 15V-D, the other end of diode ZD5 and one end of resistance R61, three
The base stage of pole pipe Q17 and the base stage of triode Q15 link together, the transmitting of the emitter and triode Q15 of triode Q17
Pole, the other end of capacitance EC7, one end of capacitance EC6, the other end of capacitance C53 and capacitance C51 one end link together, electricity
Hinder secondary side pin 6, the collector of triode Q15, the other end of capacitance EC6 and the capacitance C51 of the other end and transformer T2 of R61
The other end be connected together as voltage output end -10V-D.
Optionally, the cathode of the diode D15 is also used as test lead+2, the capacitance C49 and the junctions capacitance C47
As test lead 2, the other end of the capacitance C47 is also used as test lead -2.
Optionally, the cathode of the diode D19 is also used as test lead+4, the capacitance C53 and the junctions capacitance C51
As test lead 4, the other end of the capacitance C51 is also used as test lead -4.
The utility model proposes a kind of driving power circuit, including：Input circuit and regulator circuit, the input circuit
It connect with external power supply, and power supply is adjusted by transformer, the secondary side of transformer is output to regulator circuit, passes through voltage stabilizing
Circuit linearity voltage stabilizing exports stable voltage, carries out linear voltage stabilization to the positive pressure of power supply by positive activation type transformer, improves drive
The stability and reliability of dynamic power supply, and cost is relatively low.
Description of the drawings
Fig. 1 is a kind of functional schematic for driving power circuit that the utility model embodiment provides；
Fig. 2 is a kind of circuit diagram for driving power circuit that the utility model embodiment provides.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific implementation mode
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
As shown in Figure 1, in the present embodiment, a kind of driving power circuit, including：Input circuit and regulator circuit, it is described
Input circuit is connect with external power supply, and power supply is adjusted by transformer, and the secondary side of transformer is output to regulator circuit,
By regulator circuit linear voltage stabilization, stable voltage is exported.
In the present embodiment, linear voltage stabilization is carried out to the positive pressure of power supply by positive activation type transformer, improves driving power
Stability and reliability, and cost is relatively low.
As shown in Fig. 2, in the present embodiment, the input circuit includes：Capacitance C30, diode D17 and transformer T2,
Wherein, one end of capacitance C30 and the anode of diode D17 are grounded together, and the primary side pin 1 of transformer T2 connects diode D17
Cathode, the primary side pin 3 of transformer T2 is connected to external power supply+15BT, transformer T2 together with the other end of capacitance C30
Primary side pin 5 connect TF ends.
In the present embodiment, the external power supply is powered using 15V non-isolated power supplies.
In the present embodiment, the parameter of the capacitance C30 is：4.7uF/25V/1206/X7R/10%.
In the present embodiment, the transformer T2 is normal shock transformer, the former pair side proof voltage 5KV of the transformer T2.
In the present embodiment, the regulator circuit includes：Diode D15, diode D19, diode ZD3, diode
ZD5, resistance R59, resistance R61, triode Q11, triode Q13, triode Q15, triode Q17, capacitance EC2, capacitance EC4,
Capacitance EC6, capacitance EC7, capacitance C47, capacitance C49, capacitance C51 and capacitance C53, wherein the anode and transformer of diode D15
The secondary side pin 10 of T2 connects, cathode and the cathode of diode ZD3, the collector of triode Q13, the capacitance EC4 of diode D15
One end and one end of capacitance C49 be connected together as voltage output end 15V-C, the other end and the resistance R59 of diode ZD3
One end, the base stage of triode Q13 and the base stage of triode Q11 link together, the emitter and triode of triode Q13
One end connection of the emitter of Q11, the other end of capacitance EC4, one end of capacitance EC2, the other end of capacitance C49 and capacitance C47
Together, the other end of resistance R59 and the secondary side pin 9 of transformer T2, the other end of the collector of triode Q11, capacitance EC2
And the other end of capacitance C47 is connected together as voltage output end -10V-C；The pair of the anode and transformer T2 of diode D19
Side pin 7 connects, one end of the cathode and the cathode of diode ZD5, the collector of triode Q17, capacitance EC7 of diode D19
And one end of capacitance C53 is connected together as voltage output end 15V-D, the other end of diode ZD5 and the one of resistance R61
The base stage at end, the base stage of triode Q17 and triode Q15 links together, and the emitter of triode Q17 is with triode Q15's
Emitter, the other end of capacitance EC7, one end of capacitance EC6, the other end of capacitance C53 and capacitance C51 one end be connected to one
It rises, the other end of resistance R61 and the secondary side pin 6 of transformer T2, the other end and electricity of the collector of triode Q15, capacitance EC6
The other end for holding C51 is connected together as voltage output end -10V-D.
In the present embodiment, the parameter of the resistance R59 and resistance R61 is all 10K/0805 ± 1%.
In the present embodiment, the transformer secondary output voltage 28V, by triode Q11, Q13 linear voltage stabilizations are defeated
Go out voltage and is adjusted to+15V and -10V；In driving power, stability generally more demanding to positive voltage, and to negative electricity pressure request
It is not high, present embodiment ensure that the stability of+15V voltages, generally improves the stability of driving power.
In the present embodiment, triode Q11, Q13 belongs to switching transistor, and the pressure drop of triode itself is relatively low, therefore makes
The efficiency for obtaining driving power is higher.
In the present embodiment, the cathode of the diode D15 is also used as test lead+2, the capacitance C49 and capacitance C47
Junction is also used as test lead -2 as test lead 2, the other end of the capacitance C47.
In the present embodiment, the cathode of the diode D19 is also used as test lead+4, the capacitance C53 and capacitance C51
Junction is also used as test lead -4 as test lead 4, the other end of the capacitance C51.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or device.
Above-mentioned the utility model embodiment serial number is for illustration only, can not represent the quality of embodiment.
It these are only the preferred embodiment of the utility model, it does not limit the scope of the patent of the present invention, every
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are equally included in the patent within the scope of the utility model.
Claims (7)
1. a kind of driving power circuit, which is characterized in that including：Input circuit and regulator circuit, the input circuit and outside
Power supply connects, and power supply is adjusted by transformer, and the secondary side of transformer is output to regulator circuit, passes through regulator circuit line
Property voltage stabilizing, exports stable voltage.
2. a kind of driving power circuit according to claim 1, which is characterized in that the input circuit includes：Capacitance
C30, diode D17 and transformer T2, wherein one end of capacitance C30 and the anode of diode D17 are grounded together, transformer T2
Primary side pin 1 connect the cathode of diode D17, the primary side pin 3 of transformer T2 is connected to together with the other end of capacitance C30
The primary side pin 5 of external power supply+15BT, transformer T2 connect the ends TF.
3. a kind of driving power circuit according to claim 2, which is characterized in that the parameter of the capacitance C30 is：
4.7uF/25V/1206/X7R/10%.
4. a kind of driving power circuit according to claim 2, which is characterized in that the transformer T2 is normal shock transformation
Device, the former pair side proof voltage 5KV of the transformer T2.
5. a kind of driving power circuit according to claim 2, which is characterized in that the regulator circuit includes：Diode
D15, diode D19, diode ZD3, diode ZD5, resistance R59, resistance R61, triode Q11, triode Q13, triode
Q15, triode Q17, capacitance EC2, capacitance EC4, capacitance EC6, capacitance EC7, capacitance C47, capacitance C49, capacitance C51 and capacitance
C53, wherein the anode of diode D15 is connect with the secondary side pin 10 of transformer T2, cathode and the diode ZD3 of diode D15
Cathode, the collector of triode Q13, one end of capacitance EC4 and capacitance C49 one end be connected together as voltage output end
The other end of 15V-C, diode ZD3 and the base stage of one end of resistance R59, the base stage of triode Q13 and triode Q11 are connected to
Together, the emitter of triode Q13 and the emitter of triode Q11, the other end of capacitance EC4, one end of capacitance EC2, capacitance
The other end of C49 and one end of capacitance C47 link together, the other end of resistance R59 and the secondary side pin 9, three of transformer T2
The other end of the collector of pole pipe Q11, the other end of capacitance EC2 and capacitance C47 is connected together as voltage output end -10V-
C；The anode of diode D19 is connect with the secondary side pin 7 of transformer T2, the cathode of diode D19 and the cathode of diode ZD5,
One end of the collector of triode Q17, one end of capacitance EC7 and capacitance C53 is connected together as voltage output end 15V-D,
The other end of diode ZD5 and the base stage of one end of resistance R61, the base stage of triode Q17 and triode Q15 link together,
The emitter of triode Q17 and the emitter of triode Q15, the other end of capacitance EC7, one end of capacitance EC6, capacitance C53
One end of the other end and capacitance C51 link together, the other end of resistance R61 and secondary side pin 6, the triode of transformer T2
The other end of the collector of Q15, the other end of capacitance EC6 and capacitance C51 is connected together as voltage output end -10V-D.
6. a kind of driving power circuit according to claim 5, which is characterized in that the cathode of the diode D15 is also made
For test lead+2, the capacitance C49 is with the junctions capacitance C47 as test lead 2, and the other end of the capacitance C47 is also as survey
Try end -2.
7. a kind of driving power circuit according to claim 5, which is characterized in that the cathode of the diode D19 is also made
For test lead+4, the capacitance C53 is with the junctions capacitance C51 as test lead 4, and the other end of the capacitance C51 is also as survey
Try end -4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820060843.4U CN208015592U (en) | 2018-01-15 | 2018-01-15 | A kind of driving power circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820060843.4U CN208015592U (en) | 2018-01-15 | 2018-01-15 | A kind of driving power circuit |
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| CN208015592U true CN208015592U (en) | 2018-10-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199585A (en) * | 2018-01-15 | 2018-06-22 | 深圳市三行技术有限公司 | A kind of driving power circuit |
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2018
- 2018-01-15 CN CN201820060843.4U patent/CN208015592U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108199585A (en) * | 2018-01-15 | 2018-06-22 | 深圳市三行技术有限公司 | A kind of driving power circuit |
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