CN208655106U - Alternating current-direct current access, which observes and measures, and capacitor is logical hands over blocking characteristic teaching demonstration circuit - Google Patents
Alternating current-direct current access, which observes and measures, and capacitor is logical hands over blocking characteristic teaching demonstration circuit Download PDFInfo
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- CN208655106U CN208655106U CN201721397481.XU CN201721397481U CN208655106U CN 208655106 U CN208655106 U CN 208655106U CN 201721397481 U CN201721397481 U CN 201721397481U CN 208655106 U CN208655106 U CN 208655106U
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Abstract
A kind of alternating current-direct current access, which observes and measures, and capacitor is logical hands over blocking characteristic teaching demonstration circuit, it imparts knowledge to students for the circuit base of senior middle school and university, its electrical connection for constituting element and interelement by determining described below, the secondary coil (7) of transformer (9) is connected with the second electrolytic capacitor (1), above-mentioned series circuit is in parallel with second resistance (4), above-mentioned parallel circuit is in parallel with the series arm of the first electrolytic capacitor (2) and small bulbs (6), above-mentioned parallel circuit is connected with first resistor (5), above-mentioned series circuit is in parallel with third electrolytic capacitor (3), above-mentioned parallel circuit is in parallel with D.C. regulated power supply (10), primary coil (8) of transformer (9) is in parallel with the second AC power source (11), the beneficial effect is that, illustrate alternating current-direct current by the series-parallel circuit that two linear elements are constituted to demonstrate Access, circuit superposition theorem and capacitor are logical to hand over blocking characteristic.
Description
Technical field
The utility model relates to a kind of electronic circuits of teaching demonstration, can be used for circuit base teaching.
Background technique
Illustrate that alternating current-direct current access, circuit superposition theorem and capacitor are logical with transistor amplifier circuit demonstration and hand over blocking characteristic,
Because leading to a circuit not instead of series-parallel circuit, a two-port network containing transistor.It is therefore contemplated that with not
The series-parallel circuit being made of two linear elements containing transistor illustrates alternating current-direct current access, circuit superposition theorem and electricity to demonstrate
Container is logical to hand over blocking characteristic.
Utility model content
Illustrate the logical friendship blocking characteristic of alternating current-direct current access, circuit superposition theorem and capacitor to be demonstrated with series-parallel circuit,
Used technical solution is: a kind of alternating current-direct current access, which observes and measures, and capacitor is logical hands over blocking characteristic teaching demonstration circuit,
Forming process is first to be connected by the first electrolytic capacitor (2) and small bulbs (6)；Have for demonstration the first electrolytic capacitor (2)
It is logical to hand over blocking characteristic, in the both ends of this series arm while parallel connection direct regulated power supply (10) and the first AC power source (7)；For
Partition DC current enters the first AC power source (7), and the second electrolysis electricity is sealed in branch where the first AC power source (7)
Container (1)；In order to reduce the alternating current for flowing through D.C. regulated power supply (10), in branch where D.C. regulated power supply (10)
Seal in first resistor (5)；In order to obtain DC channel, in the first electrolytic capacitor (2) and the two of small bulbs (6) concatenated branch
Hold second resistance (4) in parallel；In order to obtain the voltage of stable D.C. regulated power supply (10), the two of D.C. regulated power supply (10)
Hold third electrolytic capacitor (3) in parallel；In order to be isolated with external power supply, use the secondary coil (7) of transformer (9) as the first exchange
Power supply (7)；Finally, primary coil (8) of transformer (9) is in parallel with the second AC power source (11).
A kind of alternating current-direct current access, which observes and measures, and capacitor is logical hands over blocking characteristic teaching demonstration circuit, by transformer (9), the
One electrolytic capacitor (2), small bulbs (6), the second electrolytic capacitor (1), first resistor (5), second resistance (4), third electrolysis
Capacitor (3), D.C. regulated power supply (10) and the second AC power source (11) are constituted, and the electrical connection of each element is transformation
The secondary coil (7) of device (9) is connected with the second electrolytic capacitor (1), and above-mentioned series circuit is in parallel with second resistance (4), it is above-mentioned simultaneously
It is in parallel with the series arm of the first electrolytic capacitor (2) and small bulbs (6) to join circuit, above-mentioned parallel circuit and first resistor (5)
Series connection, above-mentioned series circuit is in parallel with third electrolytic capacitor (3), and above-mentioned parallel circuit is in parallel with D.C. regulated power supply (10),
Primary coil (8) of transformer (9) is in parallel with the second AC power source (11), the beneficial effect is that, it is made of two linear elements
Series-parallel circuit illustrates the logical friendship blocking characteristic of alternating current-direct current access, circuit superposition theorem and capacitor to demonstrate.
Detailed description of the invention
Fig. 1 is the circuit diagram of the utility model.
1. 4. second resistance 5. first of the second 2. first electrolytic capacitor of electrolytic capacitor, 3. third electrolytic capacitor
9. transformer of primary coil of 7. first AC power source of secondary coil, 8. transformer (9) of 6. small bulbs of resistance, 7. transformer (9)
10. 11. second AC power source of D.C. regulated power supply.
Fig. 2 is the voltage waveform at the both ends of the small bulbs (6) measured in specific embodiment with oscillograph DC input coupling.
Fig. 3 is the voltage wave at the both ends of the second resistance (4) measured in specific embodiment with oscillograph DC input coupling
Shape.
Fig. 4 is the voltage wave at the both ends of the first resistor (5) measured in specific embodiment with oscillograph DC input coupling
Shape.
Fig. 5 is the both ends of the secondary coil (7) of the transformer (9) measured in specific embodiment with oscillograph DC input coupling
Voltage waveform.
Fig. 6 is the both ends of the second electrolytic capacitor (1) measured in specific embodiment with oscillograph DC input coupling
Voltage waveform.
Fig. 7 is the both ends of the first electrolytic capacitor (2) measured in specific embodiment with oscillograph DC input coupling
Voltage waveform.
Fig. 8 is the both ends of the third electrolytic capacitor (3) measured in specific embodiment with oscillograph DC input coupling
Voltage waveform.
Fig. 9 is the voltage waveform at the both ends of the small bulbs (6) measured in specific embodiment with the coupling of oscillograph AC input.
Figure 10 is the voltage wave at the both ends of the second resistance (4) measured in specific embodiment with the coupling of oscillograph AC input
Shape.
Figure 11 is the voltage wave at the both ends of the first resistor (5) measured in specific embodiment with the coupling of oscillograph AC input
Shape.
Figure 12 is the two of the secondary coil (7) of the transformer (9) measured in specific embodiment with the coupling of oscillograph AC input
The voltage waveform at end.
Figure 13 is the both ends of the second electrolytic capacitor (1) measured in specific embodiment with the coupling of oscillograph AC input
Voltage waveform.
Figure 14 is the both ends of the first electrolytic capacitor (2) measured in specific embodiment with the coupling of oscillograph AC input
Voltage waveform.
Figure 15 is the both ends of the third electrolytic capacitor (3) measured in specific embodiment with the coupling of oscillograph AC input
Voltage waveform.
Figure 16 is the pc equivalent circuit of Fig. 1 circuit.
Figure 17 is the ac equivalent circuit of Fig. 1 circuit.
Specific embodiment
The parameter of each component marked in Fig. 1 are as follows:
1. the second electrolytic capacitor: 2200uF 35v
2. the first electrolytic capacitor: 2200uF 35v
3. third electrolytic capacitor: 2200uF 35v
4. second resistance: 100 Ω 1W
5. first resistor: 100 Ω 1W
6. small bulbs: 2.5V 0.3A
9. transformer: when unloaded, the voltage ratio of primary coil (8) and secondary coil (7) is 2: 1, the D.C. resistance of primary coil (8)
It is 4 Ω, the D.C. resistance of secondary coil (7) is 1.5 Ω
10. D.C. regulated power supply: voltage output 10V is mentioned by the DC voltage-stabilizing output of First J1202 type student power source
For.
11. the second AC power source: voltage output 6V is mentioned by the alternating voltage output of second J1202 type student power source
For.
Demonstration operation and result are as follows:
Firstly, two student power sources disconnect working power, above-mentioned each element and two student power sources are connected into electricity by Fig. 1
Road, the DC voltage-stabilizing output for adjusting First student power source is 10V and connects its working power, disconnects second student power source
Working power, the positive and negative voltage across poles of third electrolytic capacitor (3) is surveyed with 20V grades of digital multimeter direct current, result is
10V surveys the both end voltage of second resistance (4), and result 5V surveys the both end voltage of first resistor (5), and result 5V surveys second
The positive and negative voltage across poles of electrolytic capacitor (1), result 5V survey the positive and negative voltage across poles of the first electrolytic capacitor (2), as a result
For 5V, the both end voltage of small bulbs (6) is surveyed, result 0V surveys the both end voltage of the secondary coil (7) of transformer (9), and result is
0V.Survey the both end voltage of small bulbs (6) and secondary coil (7) respectively with the DC input coupling of J2458-1 type teaching oscillograph, as a result
It is all 0V.
Then, the ac output voltage for adjusting second student power source is 6V and connects its working power, observes lampet
Bubble (6) brightens.The Y-axis sensitivity for adjusting J2458-1 type oscillograph is 2.5V/ lattice, is surveyed respectively with the DC input coupling of oscillograph
Measure small bulbs (6), second resistance (4), first resistor (5), the secondary coil (7) of transformer (9), the second electrolytic capacitor (1), the
The voltage waveform at the both ends of one electrolytic capacitor (2) and third electrolytic capacitor (3), respectively as Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6,
Shown in Fig. 7 and Fig. 8.
Finally, with the coupling of the AC input of above-mentioned oscillograph survey respectively small bulbs (6), second resistance (4), first resistor (5),
Secondary coil (7), the second electrolytic capacitor (1), the first electrolytic capacitor (2) and the third electrolytic capacitor (3) of transformer (9)
Both ends voltage waveform, respectively as shown in Fig. 9, Figure 10, Figure 11, Figure 12, Figure 13, Figure 14 and Figure 15.
Claims (1)
1. a kind of alternating current-direct current access, which observes and measures, and capacitor is logical hands over blocking characteristic teaching demonstration circuit, by transformer (9), first
Electrolytic capacitor (2), small bulbs (6), the second electrolytic capacitor (1), first resistor (5), second resistance (4), third electrolysis electricity
Container (3), D.C. regulated power supply (10) and the second AC power source (11) are constituted, it is characterised in that: the secondary coil of transformer (9)
(7) it connects with the second electrolytic capacitor (1), above-mentioned series circuit is in parallel with second resistance (4), above-mentioned parallel circuit and the first electricity
The series arm of electrolysis condenser (2) and small bulbs (6) is in parallel, and above-mentioned parallel circuit is connected with first resistor (5), above-mentioned series electrical
Road is in parallel with third electrolytic capacitor (3), and above-mentioned parallel circuit is in parallel with D.C. regulated power supply (10), the former line of transformer (9)
It is in parallel with the second AC power source (11) to enclose (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721397481.XU CN208655106U (en) | 2017-10-16 | 2017-10-16 | Alternating current-direct current access, which observes and measures, and capacitor is logical hands over blocking characteristic teaching demonstration circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721397481.XU CN208655106U (en) | 2017-10-16 | 2017-10-16 | Alternating current-direct current access, which observes and measures, and capacitor is logical hands over blocking characteristic teaching demonstration circuit |
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| Publication Number | Publication Date |
|---|---|
| CN208655106U true CN208655106U (en) | 2019-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721397481.XU Expired - Fee Related CN208655106U (en) | 2017-10-16 | 2017-10-16 | Alternating current-direct current access, which observes and measures, and capacitor is logical hands over blocking characteristic teaching demonstration circuit |
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| CN (1) | CN208655106U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983291A (en) * | 2020-07-06 | 2020-11-24 | 国网山西省电力公司阳泉供电公司 | Secondary circuit engineering insulation detection kit |
-
2017
- 2017-10-16 CN CN201721397481.XU patent/CN208655106U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983291A (en) * | 2020-07-06 | 2020-11-24 | 国网山西省电力公司阳泉供电公司 | Secondary circuit engineering insulation detection kit |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190326 Termination date: 20201016 |