CN205070830U - Take crystal oscillator testing capabilities's adjustable D.C. regulated power supply - Google Patents
Take crystal oscillator testing capabilities's adjustable D.C. regulated power supply Download PDFInfo
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- CN205070830U CN205070830U CN201520862082.0U CN201520862082U CN205070830U CN 205070830 U CN205070830 U CN 205070830U CN 201520862082 U CN201520862082 U CN 201520862082U CN 205070830 U CN205070830 U CN 205070830U
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Abstract
The utility model discloses a take crystal oscillator testing capabilities's adjustable D. C. Regulated power supply, including the casing, inside adjustable D. C. Regulated power supply circuit, crystal oscillator test circuit and the transformer T of being equipped with of casing, transformer T meets through switch K1 and power supply input line and mains supply, adjustable D. C. Regulated power supply circuit includes that the 36V through power operating switch K3 and transformer T exchanges rectification filter circuit and the pointer gauge head that electrical output meets to and the adjustable steady voltage output circuit of voltage and the power work indicating circuit that meet with rectification filter circuit's output, crystal oscillator test circuit includes that the 18V through crystal oscillator test switch K2 and transformer T exchanges rectifier circuit and the two hole sockets that electrical output meets to and the crystal oscillator test indicating circuit and the crystal oscillator test indicating circuit that meet with rectifier circuit's output. The utility model discloses simple structure, the processing preparation is convenient, uses the simple operation, the stable performance, the operational reliability is high, and the practicality is strong.
Description
Technical field
The utility model belongs to stabilized voltage power supply and crystal oscillator technical field of measurement and test, is specifically related to a kind of adjustable D. C regulated with crystal oscillator test function.
Background technology
Along with the development of institution of higher education's practical teaching, electrotechnical, electronic practice-training teaching and maintenance, technical elements, the test for the direct-flow voltage regulation source and crystal oscillator that export certain voltage scope has demand very widely.Quantity needed for real training is many, buys special D.C. regulated power supply cost higher, and commercially available also actually rare for the crystal oscillator tester testing crystal oscillator.Although also have some homemade adjustable DC source of stable pressure and crystal oscillator testers in prior art, but, its structure and principle all more complicated, and be mostly adjustable DC source of stable pressure and the crystal oscillator tester with independent function, realize cost low not enough, it is convenient not enough to use, and some reliabilities are high not enough, can not promote the use of well.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, there is provided a kind of adjustable D. C regulated with crystal oscillator test function, its structure is simple, reasonable in design, processing and fabricating is convenient, use simple operation, stable performance, functional reliability is high, realize cost low, practical, result of use is good, is convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of adjustable D. C regulated with crystal oscillator test function, it is characterized in that: comprise housing, described enclosure interior is provided with adjustable D. C regulated circuit and crystal oscillator test circuit, and for civil power being transformed to the transformer T of 36V alternating current and 18V alternating current, described transformer T is connected with mains supply by mains switch K1 and the power input line passing outside, the pointer gauge outfit that described adjustable D. C regulated circuit comprises the output voltage values for showing adjustable D. C regulated and the current rectifying and wave filtering circuit connected with the 36V alternating current output of transformer T by power work K switch 3, and the adjustable voltage-stabilizing output circuit of voltage connected with the output of current rectifying and wave filtering circuit and power work indicating circuit, the cathode power supply end of described pointer gauge outfit connects with the positive DC voltage output end of the adjustable voltage-stabilizing output circuit of voltage, and the negative electricity source of described pointer gauge outfit connects with the negative DC voltage output end of the adjustable voltage-stabilizing output circuit of voltage, the rectification circuit that described crystal oscillator test circuit is comprised two spring hole scokets for connecting crystal oscillator and connected with the 18V alternating current output of transformer T by crystal oscillator test job K switch 2, and the crystal oscillator connected with the output of rectification circuit tests indicating circuit and crystal oscillator test job indicating circuit, described crystal oscillator test indicating circuit comprises triode Q1, polar capacitor C4, slide rheostat RW1, switching diode D5, switching diode D6 and be used to indicate the normal LED 1 of crystal oscillator, the collector electrode of described triode Q1, a stiff end of slide rheostat RW1 and the positive pole of polar capacitor C4 all connect with the positive DC voltage output end of rectification circuit, the base stage of described triode Q1 and the sliding end of slide rheostat RW1 are all connected with the first jack of two spring hole scokets with another stiff end, and pass through the nonpolar electric capacity C1 of series connection and nonpolar electric capacity C2 ground connection, the link of described nonpolar electric capacity C1 and nonpolar electric capacity C2 connects with the emitter of triode Q1, and by resistance R1 ground connection, the anode of described switching diode D6 and the negative electrode of switching diode D5 are all connected with the emitter of triode Q1 by nonpolar electric capacity C3, the anode of described LED 1 connects with the negative electrode of switching diode D6, the negative DC voltage output end of described rectification circuit, the negative pole of polar capacitor C4, the anode of switching diode D5, the negative electrode of LED 1 and the equal ground connection of the second jack of two spring hole scokets, the outer surface of described housing is provided with and is connected with the sliding end of slide rheostat RW1 and for regulate slide rheostat RW1 to access knob S2 that crystal oscillator tests the resistance of indicating circuit, described mains switch K1, power work K switch 3, crystal oscillator test job K switch 2, pointer gauge outfit, two spring hole scokets and LED 1 are all outer to be exposed on the outer surface of described housing.
Above-mentioned a kind of adjustable D. C regulated with crystal oscillator test function, it is characterized in that: described current rectifying and wave filtering circuit is by full-bridge rectifier DZ1, nonpolar electric capacity C5 and polar capacitor C6 forms, described full-bridge rectifier DZ1 is by switching diode D1, switching diode D2, switching diode D3 and switching diode D4 forms, the positive pole of described switching diode D1 and the negative pole of switching diode D3 connect and are first ac input end of described full-bridge rectifier DZ1, the positive pole of described switching diode D2 and the negative pole of switching diode D4 connect and are the second ac input end of described full-bridge rectifier, first ac input end of described full-bridge rectifier is connected with the 36V alternating current output of transformer T by power work K switch 3, second ac input end of described full-bridge rectifier connects with the common port of the 36V alternating current of the secondary side winding of transformer T and 18V alternating current, the negative pole of described switching diode D1 and the negative pole of switching diode D2 connect and are the positive DC voltage output end of described full-bridge rectifier DZ1, the positive pole of described switching diode D3 and the positive pole of switching diode D4 connect and are the negative DC voltage output end of described full-bridge rectifier DZ1, between the positive DC voltage output end that described nonpolar electric capacity C5 is connected in parallel on described full-bridge rectifier DZ1 and negative DC voltage output end, the positive pole of described polar capacitor C6 connects with the positive DC voltage output end of described full-bridge rectifier DZ1 and is the cathode voltage output of current rectifying and wave filtering circuit, the negative pole of described polar capacitor C6 connects with the negative DC voltage output end of described full-bridge rectifier DZ1 and is the cathode voltage output of current rectifying and wave filtering circuit.
Above-mentioned a kind of adjustable D. C regulated with crystal oscillator test function, it is characterized in that: described voltage is adjustable, and voltage-stabilizing output circuit comprises chip LM317, switching diode D7, slide rheostat RW2, triode Q2, polar capacitor C7, polar capacitor C8 and nonpolar electric capacity C9, the pin 1 of described chip LM317 connects with the cathode voltage output of current rectifying and wave filtering circuit, resistance R2 is connected between the pin 2 of described chip LM317 and pin 3, the collector electrode of described triode Q2, a stiff end of slide rheostat RW2 and the positive pole of polar capacitor C7 all connect with the pin 2 of chip LM317, the pin 3 of described chip LM317 is the positive DC voltage output end OUT+ of the adjustable voltage-stabilizing output circuit of voltage, the positive pole of described switching diode D7 connects with the pin 3 of chip LM317, the positive pole of described switching diode D7 connects with the pin 1 of chip LM317, the positive pole of described polar capacitor C8 and one end of nonpolar electric capacity C9 all connect with the pin 3 of chip LM317, the negative pole of described polar capacitor C7, the negative pole of polar capacitor C8, the other end of nonpolar electric capacity C9, the base stage of another stiff end of slide rheostat RW and sliding end and triode Q2 and emitter all connect with the cathode voltage output of current rectifying and wave filtering circuit, and be the negative DC voltage output end OUT-of the adjustable voltage-stabilizing output circuit of voltage, the outer surface of described housing is provided with and is connected with the sliding end of slide rheostat RW2 and knob S1 for regulating slide rheostat RW2 to access the resistance of the adjustable voltage-stabilizing output circuit of voltage, the positive DC voltage output end OUT+ of described voltage is adjustable voltage-stabilizing output circuit is connected to the positive source output line passing described outside, described positive source output line is connected to red crocodile clip, the negative DC voltage output end OUT-of described voltage is adjustable voltage-stabilizing output circuit is connected to the power cathode output line passing described outside, described power cathode output line is connected to black crocodile clip.
Above-mentioned a kind of adjustable D. C regulated with crystal oscillator test function, it is characterized in that: described power work indicating circuit is made up of resistance R3 and the LED 2 being used to indicate adjustable D. C regulated circuit working, the positive pole of described LED 2 connects with the cathode voltage output of current rectifying and wave filtering circuit, and the negative pole of described LED 2 is connected with the cathode voltage output of current rectifying and wave filtering circuit by resistance R3; Be exposed on the outer surface of described housing outside described LED 2.
Above-mentioned a kind of adjustable D. C regulated with crystal oscillator test function, it is characterized in that: described rectification circuit is made up of full-bridge rectifier DZ2, described full-bridge rectifier DZ2 is by switching diode D8, switching diode D9, switching diode D10 and switching diode D11 forms, the positive pole of described switching diode D8 and the negative pole of switching diode D10 connect and are first ac input end of described full-bridge rectifier DZ2, the positive pole of described switching diode D9 and the negative pole of switching diode D11 connect and are the second ac input end of described full-bridge rectifier, first ac input end of described full-bridge rectifier connects with the common port of the 36V alternating current of the secondary side winding of transformer T and 18V alternating current, second ac input end of described full-bridge rectifier is connected with the 18V alternating current output of transformer T by power work K switch 2, the negative pole of described switching diode D8 and the negative pole of switching diode D9 connect and are the cathode voltage output of described rectification circuit, the positive pole of described switching diode D10 and the positive pole of switching diode D11 connect and are the cathode voltage output of described rectification circuit.
Above-mentioned a kind of adjustable D. C regulated with crystal oscillator test function, it is characterized in that: described crystal oscillator test indicating circuit is made up of resistance R4 and the LED 3 being used to indicate the work of crystal oscillator test circuit, the positive pole of described LED 3 connects with the cathode voltage output of rectification circuit, and the negative pole of described LED 3 is connected with the cathode voltage output of rectification circuit by resistance R4; Be exposed on the outer surface of described housing outside described LED 3.
Above-mentioned a kind of adjustable D. C regulated with crystal oscillator test function, is characterized in that: the shape of described housing is cuboid.
The utility model compared with prior art has the following advantages:
1, the utility model structure is simple, reasonable in design, and processing and fabricating is convenient.
2, the utility model is integrated with adjustable D. C regulated and crystal oscillator tests two kinds of functions, complete function, and volume is little, is easy to carry, and uses simple operation.
3, stable performance of the present utility model, can reliablely and stablely for user provides direct voltage, and high to the detecting reliability of crystal oscillator quality.
4, of the present utility model to realize cost low, is convenient to promote the use of in the maintenance process of electrotechnical, electronic practice-training teaching and electrotechnical, electronic equipment, can shortens the repair time, and avoid because of high cost or the puzzlement that do not have pertinent instruments to bring.
5, of the present utility model practical, result of use is good, is convenient to promote the use of.
In sum, the utility model structure is simple, reasonable in design, and processing and fabricating is convenient, and use simple operation, stable performance, functional reliability is high, realizes cost low, practical, and result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the circuit theory diagrams of the utility model adjustable D. C regulated circuit and crystal oscillator test circuit.
Description of reference numerals:
1-housing; 2-pointer gauge outfit; 3-current rectifying and wave filtering circuit;
4-voltage is adjustable voltage-stabilizing output circuit; 5-power work indicating circuit;
6-power input line; 7-crystal oscillator test circuit; 8-two spring hole scokets;
9-mains supply; 10-adjustable D. C regulated circuit;
11-rectification circuit; 12-crystal oscillator test indicating circuit;
13-crystal oscillator test job indicating circuit; 14-positive source output line;
15-red crocodile clip; 16-power cathode output line; 17-black crocodile clip.
Embodiment
As depicted in figs. 1 and 2, the utility model comprises housing 1, described housing 1 inside is provided with adjustable D. C regulated circuit 10 and crystal oscillator test circuit 7, and for civil power being transformed to the transformer T of 36V alternating current and 18V alternating current, described transformer T is connected with mains supply 9 by mains switch K1 and the power input line 6 passing housing 1 outside, the pointer gauge outfit 2 that described adjustable D. C regulated circuit 10 comprises the output voltage values for showing adjustable D. C regulated and the current rectifying and wave filtering circuit 3 connected with the 36V alternating current output of transformer T by power work K switch 3, and the adjustable voltage-stabilizing output circuit 4 of voltage connected with the output of current rectifying and wave filtering circuit 3 and power work indicating circuit 5, the cathode power supply end of described pointer gauge outfit 2 connects with the positive DC voltage output end of the adjustable voltage-stabilizing output circuit 4 of voltage, and the negative electricity source of described pointer gauge outfit 2 connects with the negative DC voltage output end of the adjustable voltage-stabilizing output circuit 4 of voltage, the rectification circuit 11 that described crystal oscillator test circuit 7 is comprised two spring hole scokets 8 for connecting crystal oscillator and connected with the 18V alternating current output of transformer T by crystal oscillator test job K switch 2, and the crystal oscillator connected with the output of rectification circuit 11 tests indicating circuit 13 and crystal oscillator test job indicating circuit 12, described crystal oscillator test indicating circuit 13 comprises triode Q1, polar capacitor C4, slide rheostat RW1, switching diode D5, switching diode D6 and be used to indicate the normal LED 1 of crystal oscillator, the collector electrode of described triode Q1, a stiff end of slide rheostat RW1 and the positive pole of polar capacitor C4 all connect with the positive DC voltage output end of rectification circuit 11, the base stage of described triode Q1 and the sliding end of slide rheostat RW1 are all connected with the first jack of two spring hole scokets 8 with another stiff end, and pass through the nonpolar electric capacity C1 of series connection and nonpolar electric capacity C2 ground connection, the link of described nonpolar electric capacity C1 and nonpolar electric capacity C2 connects with the emitter of triode Q1, and by resistance R1 ground connection, the anode of described switching diode D6 and the negative electrode of switching diode D5 are all connected with the emitter of triode Q1 by nonpolar electric capacity C3, the anode of described LED 1 connects with the negative electrode of switching diode D6, the negative DC voltage output end of described rectification circuit 11, the negative pole of polar capacitor C4, the anode of switching diode D5, the negative electrode of LED 1 and the equal ground connection of the second jack of two spring hole scokets 8, the outer surface of described housing 1 is provided with and is connected with the sliding end of slide rheostat RW1 and for regulate slide rheostat RW1 to access knob S2 that crystal oscillator tests the resistance of indicating circuit 13, described mains switch K1, power work K switch 3, crystal oscillator test job K switch 2, pointer gauge outfit 2, two spring hole scoket 8 and LED 1 are all outer to be exposed on the outer surface of described housing 1.
As shown in Figure 2, in the present embodiment, described current rectifying and wave filtering circuit 3 is by full-bridge rectifier DZ1, nonpolar electric capacity C5 and polar capacitor C6 forms, described full-bridge rectifier DZ1 is by switching diode D1, switching diode D2, switching diode D3 and switching diode D4 forms, the positive pole of described switching diode D1 and the negative pole of switching diode D3 connect and are first ac input end of described full-bridge rectifier DZ1, the positive pole of described switching diode D2 and the negative pole of switching diode D4 connect and are the second ac input end of described full-bridge rectifier, first ac input end of described full-bridge rectifier is connected with the 36V alternating current output of transformer T by power work K switch 3, second ac input end of described full-bridge rectifier connects with the common port of the 36V alternating current of the secondary side winding of transformer T and 18V alternating current, the negative pole of described switching diode D1 and the negative pole of switching diode D2 connect and are the positive DC voltage output end of described full-bridge rectifier DZ1, the positive pole of described switching diode D3 and the positive pole of switching diode D4 connect and are the negative DC voltage output end of described full-bridge rectifier DZ1, between the positive DC voltage output end that described nonpolar electric capacity C5 is connected in parallel on described full-bridge rectifier DZ1 and negative DC voltage output end, the positive pole of described polar capacitor C6 connects with the positive DC voltage output end of described full-bridge rectifier DZ1 and is the cathode voltage output of current rectifying and wave filtering circuit 3, the negative pole of described polar capacitor C6 connects with the negative DC voltage output end of described full-bridge rectifier DZ1 and is the cathode voltage output of current rectifying and wave filtering circuit 3.
As depicted in figs. 1 and 2, in the present embodiment, described voltage is adjustable, and voltage-stabilizing output circuit 4 comprises chip LM317, switching diode D7, slide rheostat RW2, triode Q2, polar capacitor C7, polar capacitor C8 and nonpolar electric capacity C9, the pin 1 of described chip LM317 connects with the cathode voltage output of current rectifying and wave filtering circuit 3, resistance R2 is connected between the pin 2 of described chip LM317 and pin 3, the collector electrode of described triode Q2, a stiff end of slide rheostat RW2 and the positive pole of polar capacitor C7 all connect with the pin 2 of chip LM317, the pin 3 of described chip LM317 is the positive DC voltage output end OUT+ of the adjustable voltage-stabilizing output circuit 4 of voltage, the positive pole of described switching diode D7 connects with the pin 3 of chip LM317, the positive pole of described switching diode D7 connects with the pin 1 of chip LM317, the positive pole of described polar capacitor C8 and one end of nonpolar electric capacity C9 all connect with the pin 3 of chip LM317, the negative pole of described polar capacitor C7, the negative pole of polar capacitor C8, the other end of nonpolar electric capacity C9, the base stage of another stiff end of slide rheostat RW and sliding end and triode Q2 and emitter all connect with the cathode voltage output of current rectifying and wave filtering circuit 3, and be the negative DC voltage output end OUT-of the adjustable voltage-stabilizing output circuit 4 of voltage, the outer surface of described housing 1 is provided with and is connected with the sliding end of slide rheostat RW2 and knob S1 for regulating slide rheostat RW2 to access the resistance of the adjustable voltage-stabilizing output circuit 4 of voltage, the positive DC voltage output end OUT+ of described voltage is adjustable voltage-stabilizing output circuit 4 is connected to the positive source output line 14 passing described housing 1 outside, described positive source output line 14 is connected to red crocodile clip 15, the negative DC voltage output end OUT-of described voltage is adjustable voltage-stabilizing output circuit 4 is connected to the power cathode output line 16 passing described housing 1 outside, described power cathode output line 16 is connected to black crocodile clip 17.
As depicted in figs. 1 and 2, in the present embodiment, described power work indicating circuit 5 is by resistance R3 and be used to indicate the LED 2 that adjustable D. C regulated circuit 10 works and form, the positive pole of described LED 2 connects with the cathode voltage output of current rectifying and wave filtering circuit 3, and the negative pole of described LED 2 is connected with the cathode voltage output of current rectifying and wave filtering circuit 3 by resistance R3; Be exposed on the outer surface of described housing 1 outside described LED 2.
As shown in Figure 2, in the present embodiment, described rectification circuit 11 is made up of full-bridge rectifier DZ2, described full-bridge rectifier DZ2 is by switching diode D8, switching diode D9, switching diode D10 and switching diode D11 forms, the positive pole of described switching diode D8 and the negative pole of switching diode D10 connect and are first ac input end of described full-bridge rectifier DZ2, the positive pole of described switching diode D9 and the negative pole of switching diode D11 connect and are the second ac input end of described full-bridge rectifier, first ac input end of described full-bridge rectifier connects with the common port of the 36V alternating current of the secondary side winding of transformer T and 18V alternating current, second ac input end of described full-bridge rectifier is connected with the 18V alternating current output of transformer T by power work K switch 2, the negative pole of described switching diode D8 and the negative pole of switching diode D9 connect and are the cathode voltage output of described rectification circuit 11, the positive pole of described switching diode D10 and the positive pole of switching diode D11 connect and are the cathode voltage output of described rectification circuit 11.
As depicted in figs. 1 and 2, in the present embodiment, described crystal oscillator test indicating circuit 13 is by resistance R4 and be used to indicate the LED 3 that crystal oscillator test circuit 7 works and form, the positive pole of described LED 3 connects with the cathode voltage output of rectification circuit 11, and the negative pole of described LED 3 is connected with the cathode voltage output of rectification circuit 11 by resistance R4; Be exposed on the outer surface of described housing 1 outside described LED 3.
As shown in Figure 1, in the present embodiment, the shape of described housing 1 is cuboid.
The utility model as use procedure during adjustable D. C regulated is: first, attaching plug on power line 6 is connected on mains supply 9, and red crocodile clip 15 is installed on the cathode power supply terminals of the equipment needing use adjustable D. C regulated, black crocodile clip 17 is installed on the negative power supply terminals of the equipment needing use adjustable D. C regulated, then, turn on the power switch K1, and opening power operating switch K3, civil power is transformed to 36V alternating current and exports to current rectifying and wave filtering circuit 3 by transformer T, 36V alternating current is converted to direct current and exports to the adjustable voltage-stabilizing output circuit 4 of voltage and power work indicating circuit 5 after carrying out filtering process by current rectifying and wave filtering circuit 3, LED 2 in power work indicating circuit 5 is lighted, rotate knob S1, slide rheostat RW2 is regulated to access the resistance of the adjustable voltage-stabilizing output circuit 4 of voltage, and check the output voltage values of the adjustable D. C regulated be presented in pointer gauge outfit 2, when being presented at the magnitude of voltage in pointer gauge outfit 2 for user's required voltage, stop the rotation knob S1.
The use procedure that the utility model is used for when crystal oscillator is tested is: first, be connected on mains supply 9 by the attaching plug on power line 6, and be connected to by crystal oscillator on two spring hole scokets 8; Then, turn on the power switch K1, and open crystal oscillator test job K switch 2; Civil power is transformed to 18V alternating current and exports to rectification circuit 11 by transformer T, rectification circuit 11 exports to crystal oscillator test indicating circuit 13 and crystal oscillator test job indicating circuit 12 after 18V alternating current is converted to direct current, LED 3 in crystal oscillator test job indicating circuit 12 is lighted, when crystal oscillator quality is good, LED 1 is lighted, otherwise during crystal oscillator poor quality, LED 1 is not lighted.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection range of technical solutions of the utility model.
Claims (7)
1. the adjustable D. C regulated with crystal oscillator test function, it is characterized in that: comprise housing (1), described housing (1) inside is provided with adjustable D. C regulated circuit (10) and crystal oscillator test circuit (7), and for civil power being transformed to the transformer T of 36V alternating current and 18V alternating current, described transformer T is connected with mains supply (9) by the power input line (6) that mains switch K1 is outside with passing housing (1), the pointer gauge outfit (2) that described adjustable D. C regulated circuit (10) comprises the output voltage values for showing adjustable D. C regulated and the current rectifying and wave filtering circuit (3) connected with the 36V alternating current output of transformer T by power work K switch 3, and the adjustable voltage-stabilizing output circuit of voltage (4) connected with the output of current rectifying and wave filtering circuit (3) and power work indicating circuit (5), the cathode power supply end of described pointer gauge outfit (2) connects with the positive DC voltage output end of the adjustable voltage-stabilizing output circuit of voltage (4), and the negative electricity source of described pointer gauge outfit (2) connects with the negative DC voltage output end of the adjustable voltage-stabilizing output circuit of voltage (4), the rectification circuit (11) that described crystal oscillator test circuit (7) is comprised two spring hole scokets (8) for connecting crystal oscillator and connected with the 18V alternating current output of transformer T by crystal oscillator test job K switch 2, and the crystal oscillator connected with the output of rectification circuit (11) tests indicating circuit (13) and crystal oscillator test job indicating circuit (12), described crystal oscillator test indicating circuit (13) comprises triode Q1, polar capacitor C4, slide rheostat RW1, switching diode D5, switching diode D6 and be used to indicate the normal LED 1 of crystal oscillator, the collector electrode of described triode Q1, a stiff end of slide rheostat RW1 and the positive pole of polar capacitor C4 all connect with the positive DC voltage output end of rectification circuit (11), the base stage of described triode Q1 and the sliding end of slide rheostat RW1 are all connected with the first jack of two spring hole scokets (8) with another stiff end, and pass through the nonpolar electric capacity C1 of series connection and nonpolar electric capacity C2 ground connection, the link of described nonpolar electric capacity C1 and nonpolar electric capacity C2 connects with the emitter of triode Q1, and by resistance R1 ground connection, the anode of described switching diode D6 and the negative electrode of switching diode D5 are all connected with the emitter of triode Q1 by nonpolar electric capacity C3, the anode of described LED 1 connects with the negative electrode of switching diode D6, the negative DC voltage output end of described rectification circuit (11), the negative pole of polar capacitor C4, the anode of switching diode D5, the negative electrode of LED 1 and the equal ground connection of the second jack of two spring hole scokets (8), the outer surface of described housing (1) is provided with and is connected with the sliding end of slide rheostat RW1 and for regulate slide rheostat RW1 to access knob S2 that crystal oscillator tests the resistance of indicating circuit (13), described mains switch K1, power work K switch 3, crystal oscillator test job K switch 2, pointer gauge outfit (2), two spring hole scokets (8) and LED 1 are all outer to be exposed on the outer surface of described housing (1).
2. according to a kind of adjustable D. C regulated with crystal oscillator test function according to claim 1, it is characterized in that: described current rectifying and wave filtering circuit (3) is by full-bridge rectifier DZ1, nonpolar electric capacity C5 and polar capacitor C6 forms, described full-bridge rectifier DZ1 is by switching diode D1, switching diode D2, switching diode D3 and switching diode D4 forms, the positive pole of described switching diode D1 and the negative pole of switching diode D3 connect and are first ac input end of described full-bridge rectifier DZ1, the positive pole of described switching diode D2 and the negative pole of switching diode D4 connect and are the second ac input end of described full-bridge rectifier, first ac input end of described full-bridge rectifier is connected with the 36V alternating current output of transformer T by power work K switch 3, second ac input end of described full-bridge rectifier connects with the common port of the 36V alternating current of the secondary side winding of transformer T and 18V alternating current, the negative pole of described switching diode D1 and the negative pole of switching diode D2 connect and are the positive DC voltage output end of described full-bridge rectifier DZ1, the positive pole of described switching diode D3 and the positive pole of switching diode D4 connect and are the negative DC voltage output end of described full-bridge rectifier DZ1, between the positive DC voltage output end that described nonpolar electric capacity C5 is connected in parallel on described full-bridge rectifier DZ1 and negative DC voltage output end, the positive pole of described polar capacitor C6 connects with the positive DC voltage output end of described full-bridge rectifier DZ1 and is the cathode voltage output of current rectifying and wave filtering circuit (3), the negative pole of described polar capacitor C6 connects with the negative DC voltage output end of described full-bridge rectifier DZ1 and is the cathode voltage output of current rectifying and wave filtering circuit (3).
3. according to a kind of adjustable D. C regulated with crystal oscillator test function according to claim 2, it is characterized in that: described voltage is adjustable, and voltage-stabilizing output circuit (4) comprises chip LM317, switching diode D7, slide rheostat RW2, triode Q2, polar capacitor C7, polar capacitor C8 and nonpolar electric capacity C9, the pin 1 of described chip LM317 connects with the cathode voltage output of current rectifying and wave filtering circuit (3), resistance R2 is connected between the pin 2 of described chip LM317 and pin 3, the collector electrode of described triode Q2, a stiff end of slide rheostat RW2 and the positive pole of polar capacitor C7 all connect with the pin 2 of chip LM317, the pin 3 of described chip LM317 is the positive DC voltage output end OUT+ of the adjustable voltage-stabilizing output circuit of voltage (4), the positive pole of described switching diode D7 connects with the pin 3 of chip LM317, the positive pole of described switching diode D7 connects with the pin 1 of chip LM317, the positive pole of described polar capacitor C8 and one end of nonpolar electric capacity C9 all connect with the pin 3 of chip LM317, the negative pole of described polar capacitor C7, the negative pole of polar capacitor C8, the other end of nonpolar electric capacity C9, the base stage of another stiff end of slide rheostat RW and sliding end and triode Q2 and emitter all connect with the cathode voltage output of current rectifying and wave filtering circuit (3), and be the negative DC voltage output end OUT-of the adjustable voltage-stabilizing output circuit of voltage (4), the outer surface of described housing (1) is provided with and is connected with the sliding end of slide rheostat RW2 and knob S1 for regulating slide rheostat RW2 to access the resistance of the adjustable voltage-stabilizing output circuit of voltage (4), the positive DC voltage output end OUT+ of described voltage is adjustable voltage-stabilizing output circuit (4) is connected to and passes the outside positive source output line (14) of described housing (1), described positive source output line (14) is connected to red crocodile clip (15), the negative DC voltage output end OUT-of described voltage is adjustable voltage-stabilizing output circuit (4) is connected to and passes the outside power cathode output line (16) of described housing (1), described power cathode output line (16) is connected to black crocodile clip (17).
4. according to a kind of adjustable D. C regulated with crystal oscillator test function according to claim 2, it is characterized in that: described power work indicating circuit (5) is by resistance R3 and be used to indicate the LED 2 that adjustable D. C regulated circuit (10) works and form, the positive pole of described LED 2 connects with the cathode voltage output of current rectifying and wave filtering circuit (3), and the negative pole of described LED 2 is connected with the cathode voltage output of current rectifying and wave filtering circuit (3) by resistance R3; Be exposed on the outer surface of described housing (1) outside described LED 2.
5. according to a kind of adjustable D. C regulated with crystal oscillator test function according to claim 1, it is characterized in that: described rectification circuit (11) is made up of full-bridge rectifier DZ2, described full-bridge rectifier DZ2 is by switching diode D8, switching diode D9, switching diode D10 and switching diode D11 forms, the positive pole of described switching diode D8 and the negative pole of switching diode D10 connect and are first ac input end of described full-bridge rectifier DZ2, the positive pole of described switching diode D9 and the negative pole of switching diode D11 connect and are the second ac input end of described full-bridge rectifier, first ac input end of described full-bridge rectifier connects with the common port of the 36V alternating current of the secondary side winding of transformer T and 18V alternating current, second ac input end of described full-bridge rectifier is connected with the 18V alternating current output of transformer T by power work K switch 2, the negative pole of described switching diode D8 and the negative pole of switching diode D9 connect and are the cathode voltage output of described rectification circuit (11), the positive pole of described switching diode D10 and the positive pole of switching diode D11 connect and are the cathode voltage output of described rectification circuit (11).
6. according to a kind of adjustable D. C regulated with crystal oscillator test function according to claim 5, it is characterized in that: described crystal oscillator test indicating circuit (13) is by resistance R4 and be used to indicate the LED 3 that crystal oscillator test circuit (7) works and form, the positive pole of described LED 3 connects with the cathode voltage output of rectification circuit (11), and the negative pole of described LED 3 is connected with the cathode voltage output of rectification circuit (11) by resistance R4; Be exposed on the outer surface of described housing (1) outside described LED 3.
7. according to a kind of adjustable D. C regulated with crystal oscillator test function according to claim 1, it is characterized in that: the shape of described housing (1) is cuboid.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520862082.0U CN205070830U (en) | 2015-10-31 | 2015-10-31 | Take crystal oscillator testing capabilities's adjustable D.C. regulated power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520862082.0U CN205070830U (en) | 2015-10-31 | 2015-10-31 | Take crystal oscillator testing capabilities's adjustable D.C. regulated power supply |
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| CN205070830U true CN205070830U (en) | 2016-03-02 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414869A (en) * | 2018-06-11 | 2018-08-17 | 南京尤尼泰信息科技有限公司 | A kind of test system suitable for plurality of specifications crystal oscillator |
| CN108414922A (en) * | 2018-06-11 | 2018-08-17 | 南京尤尼泰信息科技有限公司 | A kind of test device suitable for plurality of specifications crystal oscillator |
| CN108500073A (en) * | 2018-05-09 | 2018-09-07 | 中山中舟海洋科技有限公司 | Cold drawing machine with pressure stabilizing function |
| CN110514900A (en) * | 2019-07-23 | 2019-11-29 | 河北远东通信系统工程有限公司 | Constant-temperature crystal oscillator aging Auto-Test System |
| CN112737359A (en) * | 2020-12-24 | 2021-04-30 | 中航贵州飞机有限责任公司 | Constant-voltage constant-current direct-current high-power adjustable power supply module |
-
2015
- 2015-10-31 CN CN201520862082.0U patent/CN205070830U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500073A (en) * | 2018-05-09 | 2018-09-07 | 中山中舟海洋科技有限公司 | Cold drawing machine with pressure stabilizing function |
| CN108414869A (en) * | 2018-06-11 | 2018-08-17 | 南京尤尼泰信息科技有限公司 | A kind of test system suitable for plurality of specifications crystal oscillator |
| CN108414922A (en) * | 2018-06-11 | 2018-08-17 | 南京尤尼泰信息科技有限公司 | A kind of test device suitable for plurality of specifications crystal oscillator |
| CN108414869B (en) * | 2018-06-11 | 2023-09-29 | 南京尤尼泰信息科技有限公司 | Test system suitable for multiple specification crystal oscillator |
| CN110514900A (en) * | 2019-07-23 | 2019-11-29 | 河北远东通信系统工程有限公司 | Constant-temperature crystal oscillator aging Auto-Test System |
| CN112737359A (en) * | 2020-12-24 | 2021-04-30 | 中航贵州飞机有限责任公司 | Constant-voltage constant-current direct-current high-power adjustable power supply module |
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Granted publication date: 20160302 Termination date: 20161031 |