CN201063454Y - Non-switch tube type pulse charger - Google Patents
Non-switch tube type pulse charger Download PDFInfo
- Publication number
- CN201063454Y CN201063454Y CNU2007201197493U CN200720119749U CN201063454Y CN 201063454 Y CN201063454 Y CN 201063454Y CN U2007201197493 U CNU2007201197493 U CN U2007201197493U CN 200720119749 U CN200720119749 U CN 200720119749U CN 201063454 Y CN201063454 Y CN 201063454Y
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- pulse
- control
- power supply
- switching power
- voltage
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Abstract
The utility model discloses a non-switch tube type pulse charger, comprising a switch power source, a charging control circuit, a charging control/pulse signal generator, a voltage sampling circuit and a coupling isolation unit, wherein, the switch power source charges a to-be-charged rechargeable battery through the charging control circuit; a sampling voltage output end of the voltage sampling circuit is connected with a control end of the charging control/pulse signal generator; the charging control/pulse signal generator outputs pulse control signals to the coupling isolation unit according to the changes of sampling voltage; an output end of the coupling isolation unit is connected with the switch power source, and outputs pulse control signals to control the output voltage of the switch power source to supply power in a pulse mode. As the pulse charger of the utility model saves a power device switching pipe in the charging control circuit, the cost of the charger is reduced. Moreover, the pulse control of the output voltage on the side of the switch power source decreases the failure rate of the charger and improves charging efficiency.
Description
Technical field
The utility model relates to a kind of pulse charger, be specifically related to a kind of in charging control circuit the pulse charger of no switching tube.
Background technology
Existing common charger generally all is constant voltage, the charging of floating charge pattern.The following shortcoming of this charger ubiquity: be difficult to eliminate memory effect, and along with the increase of service time, memory effect is increasing, both has been difficult to charging, is difficult to discharge again, and battery is scrapped in advance, the waste resource is unfavorable for environmental protection.
The battery that has sulfation for lead-acid battery etc. is unsuitable for adopting above-mentioned charging modes, but adopts pulse charging.Existing as shown in Figure 1 pulse type charger all adopts and power device is set as switching tube Q2 in charging control circuit, as: field effect transistor or triode, to realize the pulse current charge pattern.Yet because objectively there is conduction impedance in switching tube, this not only can also can make the charger cost improve because of playing the device heating consumed power.
The utility model content
The technical problem that the utility model solves provides a kind of pulse charger of not having the switch cast at charging control circuit.
The utility model proposes a kind of no switch cast pulse charger, comprising: Switching Power Supply, charging control circuit, charging control/pulse signal generator, voltage sampling circuit, coupling isolated location; Switching Power Supply is treated rechargeable battery by charging control circuit and is charged; Voltage sampling circuit is attempted by the positive and negative terminals of battery to be charged, the sampled voltage output of voltage sampling circuit connects the control end of charging control/pulse signal generator, and charging control/pulse signal generator arrives the coupling isolated location according to the variation output pulse control signal of sampled voltage; The output of coupling isolated location links to each other with Switching Power Supply, and powers with pulse mode by the output voltage of output pulse control signal control switching.
Preferably, described voltage sampling circuit is two resistance that are connected in series, and the link of two resistance is as the output of adopting circuit.
Preferably, when described Switching Power Supply was single switching tube inverse-excitation type switch power-supply, described coupling isolated location was an optical coupler.
Preferably, be provided with the Switching Power Supply control IC in the described Switching Power Supply, the output of described optical coupler links to each other with the Switching Power Supply control IC, and by exporting the sampling pin voltage of pulse control signal control switching control IC, the duty ratio of the switching tube work of Switching Power Supply control IC control switching makes the output voltage of Switching Power Supply power with pulse mode.
Preferably, when described Switching Power Supply is half/full-bridge type Switching Power Supply, described coupling isolated location comprises power control circuit and isolating transformer, charging control/pulse signal generator is exported pulse control signal to power control circuit according to the variation of sampled voltage, power control circuit is sent to Switching Power Supply with pulse control signal by isolating transformer, and the output voltage of Switching Power Supply is powered with pulse mode.
Adopt no switch cast pulse charger of the present utility model,, reduced the cost of charger owing to saved the power device switching tube at charging control circuit.The utility model adopts the pulse control at Switching Power Supply side output voltage, has reduced the failure rate of charger, has improved the efficient of charging.
Description of drawings
Fig. 1 is existing pulse charger circuit theory diagrams;
Fig. 2 is the charger circuit schematic diagram that the utility model adopts the single tube inverse-excitation type switch power-supply;
Fig. 3 is the charger circuit schematic diagram that the utility model adopts half/full-bridge type Switching Power Supply.
Embodiment
To and be elaborated to the utility model in conjunction with the accompanying drawings by specific embodiment below.
Charger circuit principle as shown in Figure 2, Switching Power Supply adopts the single tube inverse-excitation type switch power-supply.Circuit mainly comprises: single tube inverse-excitation type switch power-supply, charging control circuit, charging control/pulse signal generator, voltage sampling circuit, coupling isolated location.The isolated location that wherein is coupled adopts optical coupler P1.Switching Power Supply is treated rechargeable battery by charging control circuit and is charged; Voltage sampling circuit is attempted by the positive and negative terminals of battery to be charged, the sampled voltage output of voltage sampling circuit connects the control end of charging control/pulse signal generator, and charging control/pulse signal generator is exported pulse control signal to optical coupler P1 according to the variation of sampled voltage; The output of optical coupler P1 links to each other with Switching Power Supply, and powers with pulse mode by the output voltage of output pulse control signal control switching.As shown in Figure 2, also be provided with the Switching Power Supply control IC in the Switching Power Supply, the output of optical coupler links to each other with the Switching Power Supply control IC, and by exporting the sampling pin voltage of pulse control signal control switching control IC, the duty ratio of the switching tube work of Switching Power Supply control IC control switching makes the output voltage of Switching Power Supply power with pulse mode.Voltage sampling circuit wherein is two resistance R that are connected in series 4, R5, and the link of two resistance is as the output of adopting circuit.
Charger circuit principle as shown in Figure 3, Switching Power Supply adopts half/full-bridge type Switching Power Supply.Circuit mainly comprises: half/full-bridge type Switching Power Supply, charging control circuit, charging control/pulse signal generator, voltage sampling circuit, coupling isolated location.The isolated location that wherein is coupled comprises power control circuit and isolating transformer T2, charging control/pulse signal generator is exported pulse control signal to power control circuit according to the variation of sampled voltage, power control circuit is sent to Switching Power Supply with pulse control signal by isolating transformer T2, and the output voltage of Switching Power Supply is powered with pulse mode.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (5)
1. a no switch cast pulse charger is characterized in that described charger comprises: Switching Power Supply, charging control circuit, charging control/pulse signal generator, voltage sampling circuit, coupling isolated location; Switching Power Supply is treated rechargeable battery by charging control circuit and is charged; Voltage sampling circuit is attempted by the positive and negative terminals of battery to be charged, the sampled voltage output of voltage sampling circuit connects the control end of charging control/pulse signal generator, and charging control/pulse signal generator arrives the coupling isolated location according to the variation output pulse control signal of sampled voltage; The output of coupling isolated location links to each other with Switching Power Supply, and powers with pulse mode by the output voltage of output pulse control signal control switching.
2. no switch cast pulse charger according to claim 1 is characterized in that described voltage sampling circuit is two resistance that are connected in series, and the link of two resistance is as the output of adopting circuit.
3. no switch cast pulse charger according to claim 1 and 2 is characterized in that, when described Switching Power Supply was single switching tube inverse-excitation type switch power-supply, described coupling isolated location was an optical coupler.
4. no switch cast pulse charger according to claim 3, it is characterized in that, be provided with the Switching Power Supply control IC in the described Switching Power Supply, the output of described optical coupler links to each other with the Switching Power Supply control IC, and by exporting the sampling pin voltage of pulse control signal control switching control IC, the duty ratio of the switching tube work of Switching Power Supply control IC control switching makes the output voltage of Switching Power Supply power with pulse mode.
5. no switch cast pulse charger according to claim 1 and 2, it is characterized in that, when described Switching Power Supply is half/full-bridge type Switching Power Supply, described coupling isolated location comprises power control circuit and isolating transformer, charging control/pulse signal generator is exported pulse control signal to power control circuit according to the variation of sampled voltage, power control circuit is sent to Switching Power Supply with pulse control signal by isolating transformer, and the output voltage of Switching Power Supply is powered with pulse mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201197493U CN201063454Y (en) | 2007-04-24 | 2007-04-24 | Non-switch tube type pulse charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201197493U CN201063454Y (en) | 2007-04-24 | 2007-04-24 | Non-switch tube type pulse charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201063454Y true CN201063454Y (en) | 2008-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201197493U Expired - Fee Related CN201063454Y (en) | 2007-04-24 | 2007-04-24 | Non-switch tube type pulse charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201063454Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099138A (en) * | 2015-08-26 | 2015-11-25 | 矽力杰半导体技术(杭州)有限公司 | Power supply circuit based on light-coupled transmission and light-coupled transmission module |
| CN105490540A (en) * | 2014-09-19 | 2016-04-13 | 万国半导体(开曼)股份有限公司 | Constant on-time switching converter |
-
2007
- 2007-04-24 CN CNU2007201197493U patent/CN201063454Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490540A (en) * | 2014-09-19 | 2016-04-13 | 万国半导体(开曼)股份有限公司 | Constant on-time switching converter |
| CN105490540B (en) * | 2014-09-19 | 2019-09-06 | 万国半导体(开曼)股份有限公司 | Fixed turn-on time suitching type conversion equipment |
| CN105099138A (en) * | 2015-08-26 | 2015-11-25 | 矽力杰半导体技术(杭州)有限公司 | Power supply circuit based on light-coupled transmission and light-coupled transmission module |
| CN105099138B (en) * | 2015-08-26 | 2017-12-05 | 矽力杰半导体技术(杭州)有限公司 | Power supply circuit and optocoupler transport module based on optocoupler transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080521 Termination date: 20100424 |