CN202737732U - Zero-voltage switching system of high-power switching tube - Google Patents
Zero-voltage switching system of high-power switching tube Download PDFInfo
- Publication number
- CN202737732U CN202737732U CN2012203917428U CN201220391742U CN202737732U CN 202737732 U CN202737732 U CN 202737732U CN 2012203917428 U CN2012203917428 U CN 2012203917428U CN 201220391742 U CN201220391742 U CN 201220391742U CN 202737732 U CN202737732 U CN 202737732U
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- Prior art keywords
- parallel
- switching tube
- zero
- resistor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model relates to a switching power supply system of an electronic circuit and particularly relates to a zero-voltage control system of a switching tube. In a zero-voltage switching system of a high-power switching tube in the utility model, an A end of the system is connected in parallel to a signal source of a power switching tube, the A end is connected with a resistor R1 and a diode D1 in parallel, the resistor R1 is sequentially connected with a reverse-phase U1A and a reverse-phase trigger U1B in series, the input ends of the resistor R1 and the reverse-phase trigger U1A are respectively connected with a filtering capacitor C1, the negative electrode of the diode D1 is connected to the output end of the reverse-phase trigger U1B, the output end of the reverse-phase trigger U1B is sequentially connected with a resistor R2, an isolation driver U2, a resistor R3 and a transistor Q1 in series, a capacitor C2 is connected in parallel between a C end and an E end of the transistor Q1, and the C end and the E end are respectively connected with the power switching tube in parallel. The zero-voltage switching system of the high-power switching tube has a simple circuit structure and can be adopted to realize zero-voltage switch-off and reduce the switching loss of the switching tube.
Description
Technical field
The utility model relates to a kind of switch power supply system of electronic circuit, relates in particular to a kind of control system of switch tube zero voltage.
Background technology
Along with the fast development of information, the energy, electronic technology, switching circuit is widely used in many fields such as post and telecommunications, communication, electric power, traffic, boats and ships, Aero-Space, emergency lighting.But electric current is large when in use, and in high-frequency on off state, this type of switching tube produces the interference harmonic wave easily, and simultaneously peak current and loss causes high power valve overheated, reduced so widely its life-span.
The utility model content
Technique effect of the present utility model can overcome defects, and a kind of high-power switch tube zero voltage switch system is provided, and it can make and realize its control function under zero-voltage state, not only simply but also reliable.
For achieving the above object, the utility model adopts following technical scheme: the A end of its system is parallel on the signal source of power switch pipe, A end parallel resistance R1 and diode D1, resistance R 1 is connected in series inverter trigger U1A successively, inverter trigger U1B, resistance R 1 is connected respectively a filter capacitor C1 with the input of inverter trigger U1A, the negative pole of diode D1 is received the output of inverter trigger U1B, the output of inverter trigger U1B is resistors in series R2 successively, driver for isolating U2, resistor R3 and transistor Q1, in parallel with capacitor C 2 between the C end of transistor Q1 and the E end, C end and E end be power switch pipe in parallel respectively.
Driver for isolating U2 adopts the P521 model.Transistor Q1 adopts the 2SK5551 model.
High-power switch tube zero voltage switch of the present utility model system, circuit structure is simple, has realized the no-voltage shutoff, reduces the switching tube switching loss.
Description of drawings
Fig. 1 is electrical block diagram of the present utility model.
Embodiment
The A end of high-power switch tube zero voltage switch of the present utility model system is parallel on the signal source of power switch pipe, A end parallel resistance R1 and diode D1, resistance R 1 is connected in series inverter trigger U1A successively, inverter trigger U1B, resistance R 1 is connected respectively a filter capacitor C1 with the input of inverter trigger U1A, the negative pole of diode D1 is received the output of inverter trigger U1B, the output of inverter trigger U1B is resistors in series R2 successively, driver for isolating U2, resistor R3 and transistor Q1, in parallel with capacitor C 2 between the C end of transistor Q1 and the E end, C end and E end be power switch pipe in parallel respectively.
Driver for isolating U2 adopts the P521 model.Transistor Q1 adopts the 2SK5551 model.
The input A of this circuit is parallel on the control signal source of power switch pipe, and corresponding C, E that output C, the E of this circuit is parallel to power switch pipe extremely go up.When the control signal of power switch pipe also is added to the A end of this circuit to the end the time simultaneously, because the switching tube of this circuit is low power MOSPET pipe, so opening speed is faster than high-power switch tube, when cut-offfing signal to the end the time, high power valve turn-offs immediately, and the small-power MOS transistor pipe Q1 in parallel with it does not turn-off, and this moment, switch tube voltage still was 0, postpone to turn-off behind several us, so just realized that high-power switch tube is switch under 0 voltage.Adjusted by R, C value time of delay.
Claims (3)
1. high-power switch tube zero voltage switch system, it is characterized in that, the A end of system is parallel on the signal source of power switch pipe, A end parallel resistance R1 and diode D1, resistance R 1 is connected in series inverter trigger U1A successively, inverter trigger U1B, resistance R 1 is connected respectively a filter capacitor C1 with the input of inverter trigger U1A, the negative pole of diode D1 is received the output of inverter trigger U1B, the output of inverter trigger U1B is resistors in series R2 successively, driver for isolating U2, resistor R3 and transistor Q1, in parallel with capacitor C 2 between the C end of transistor Q1 and the E end, C end and E end be power switch pipe in parallel respectively.
2. high-power switch tube zero voltage switch according to claim 1 system is characterized in that, driver for isolating U2 adopts the P521 model.
3. high-power switch tube zero voltage switch according to claim 1 system is characterized in that, transistor Q1 adopts the 2SK5551 model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203917428U CN202737732U (en) | 2012-08-09 | 2012-08-09 | Zero-voltage switching system of high-power switching tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203917428U CN202737732U (en) | 2012-08-09 | 2012-08-09 | Zero-voltage switching system of high-power switching tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202737732U true CN202737732U (en) | 2013-02-13 |
Family
ID=47663391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203917428U Withdrawn - After Issue CN202737732U (en) | 2012-08-09 | 2012-08-09 | Zero-voltage switching system of high-power switching tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202737732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580455A (en) * | 2012-08-09 | 2014-02-12 | 青岛艾迪森科技有限公司 | Non-voltage switching system of high-power switching tube |
-
2012
- 2012-08-09 CN CN2012203917428U patent/CN202737732U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580455A (en) * | 2012-08-09 | 2014-02-12 | 青岛艾迪森科技有限公司 | Non-voltage switching system of high-power switching tube |
| CN103580455B (en) * | 2012-08-09 | 2015-12-16 | 青岛艾迪森科技有限公司 | High-power switch tube zero voltage switch system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130213 Effective date of abandoning: 20151216 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |