JP2016135001A5 - - Google Patents
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- Publication number
- JP2016135001A5 JP2016135001A5 JP2015008356A JP2015008356A JP2016135001A5 JP 2016135001 A5 JP2016135001 A5 JP 2016135001A5 JP 2015008356 A JP2015008356 A JP 2015008356A JP 2015008356 A JP2015008356 A JP 2015008356A JP 2016135001 A5 JP2016135001 A5 JP 2016135001A5
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- voltage drop
- voltage
- switching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000001514 detection method Methods 0.000 claims 2
Claims (8)
前記負荷に供給する負荷電流に対する出力電圧の電圧降下特性を少なくとも３つ有する電源回路を備え、
前記電源回路は、前記負荷電流の電流値が特定の状態となった場合に、前記電圧降下特性を切り替えること、
を特徴とする電源装置。 A power supply device for a printer that supplies a direct current to a load based on an alternating current,
A power supply circuit having at least three voltage drop characteristics of an output voltage with respect to a load current supplied to the load;
The power supply circuit switches the voltage drop characteristic when the current value of the load current is in a specific state;
A power supply characterized by.
を特徴とする請求項１記載の電源装置。 The power supply circuit includes a first voltage drop characteristic showing a characteristic that the output voltage drops as the load current increases, and a slope where the output voltage is gentler than the first voltage drop characteristic as the load current increases. in that it has a second voltage drop characteristics showing a descending characteristic, a third voltage drop characteristics showing a characteristic of the output voltage drops with the decrease of the previous SL load current, a,
The power supply device according to claim 1.
前記負荷電流が前記特定の状態となったことを検出し出力を替える検出部と、
前記検出部の出力に基づき、前記電圧降下特性を切り替える切替部と、
を備えることを特徴とする請求項１から請求項３のいずれかに記載の電源装置。 The power supply circuit is
A detecting unit Ru changing the detection output that the load current becomes the specific state,
A switching unit for switching the voltage drop characteristic based on the output of the detection unit;
The power supply device according to any one of claims 1 to 3, further comprising:
前記一次側回路に結合され前記直流電流を前記負荷に供給する二次側回路と、を有し、
前記二次側回路側には、
基準電圧回路と、
前記二次側回路の前記出力電圧を分圧する分圧回路と、
前記分圧回路の分圧電圧と基準電圧と比較する比較回路と、
前記比較回路の比較結果に基づき前記スイッチング回路の周波数を変化させるフィードバック回路と、を備え、
前記切替部は、前記分圧回路の分圧電圧を変化させることで前記電圧降下特性を切り替えること、
を特徴とする請求項請求項５に記載の電源装置。 A primary circuit including the switching circuit,
A secondary circuit coupled to the primary circuit and supplying the direct current to the load;
On the secondary circuit side,
A reference voltage circuit;
A voltage dividing circuit for dividing the output voltage of the secondary side circuit;
A comparison circuit for comparing the divided voltage of the voltage dividing circuit with a reference voltage;
A feedback circuit that changes the frequency of the switching circuit based on the comparison result of the comparison circuit, and
The switching unit switches the voltage drop characteristic by changing a divided voltage of the voltage dividing circuit;
The power supply device according to claim 5 .
を特徴とする請求項１から請求項６のいずれか１項に記載の電源装置。 The power supply device is an AC adapter type in which the power supply circuit is covered by a casing;
The power supply device according to any one of claims 1 to 6, wherein:
前記電源回路は、
前記印刷ヘッドに供給する負荷電流に対する出力電圧の電圧降下特性を少なくとも３つ有し、
前記負荷電流の電流値が特定の状態となった場合に、前記電圧降下特性を切り替えること、
を特徴とするプリンター。 A print head having a plurality of print elements fixed in a direction intersecting with the conveyance direction of the print medium, and a power supply circuit for supplying a direct current to the print head based on an alternating current
The power supply circuit is
Having at least three voltage drop characteristics of an output voltage with respect to a load current supplied to the print head;
When the current value of the load current is in a specific state, switching the voltage drop characteristics,
Printer characterized by.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015008356A JP6455170B2 (en) | 2015-01-20 | 2015-01-20 | Power supply device and printer |
| CN201620016965.4U CN205489774U (en) | 2015-01-20 | 2016-01-08 | Power supply unit and printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015008356A JP6455170B2 (en) | 2015-01-20 | 2015-01-20 | Power supply device and printer |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2016135001A JP2016135001A (en) | 2016-07-25 |
| JP2016135001A5 true JP2016135001A5 (en) | 2018-02-01 |
| JP6455170B2 JP6455170B2 (en) | 2019-01-23 |
Family
ID=56464641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2015008356A Expired - Fee Related JP6455170B2 (en) | 2015-01-20 | 2015-01-20 | Power supply device and printer |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6455170B2 (en) |
| CN (1) | CN205489774U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6751527B2 (en) * | 2016-09-26 | 2020-09-09 | 東芝ライテック株式会社 | Lighting system and power supply |
| JP7069714B2 (en) * | 2017-12-28 | 2022-05-18 | セイコーエプソン株式会社 | Piezoelectric printheads and piezoelectric inkjet printers |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06169566A (en) * | 1992-11-30 | 1994-06-14 | Murata Mfg Co Ltd | Switching power supply device |
| JP3549772B2 (en) * | 1999-05-21 | 2004-08-04 | シャープ株式会社 | Stabilized power supply |
| JP3500631B2 (en) * | 2002-03-29 | 2004-02-23 | サンケン電気株式会社 | Switching power supply |
-
2015
- 2015-01-20 JP JP2015008356A patent/JP6455170B2/en not_active Expired - Fee Related
-
2016
- 2016-01-08 CN CN201620016965.4U patent/CN205489774U/en not_active Expired - Fee Related
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