JP4629541B2 - 放電灯駆動制御回路 - Google Patents
放電灯駆動制御回路 Download PDFInfo
- Publication number
- JP4629541B2 JP4629541B2 JP2005278647A JP2005278647A JP4629541B2 JP 4629541 B2 JP4629541 B2 JP 4629541B2 JP 2005278647 A JP2005278647 A JP 2005278647A JP 2005278647 A JP2005278647 A JP 2005278647A JP 4629541 B2 JP4629541 B2 JP 4629541B2
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- Prior art keywords
- control circuit
- discharge lamp
- drive
- circuit
- voltage
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Description
インバータ制御回路と、
前記インバータ制御回路により駆動されるスイッチング回路とを有し、
前記スイッチング回路により直流の駆動電源電圧をスイッチングして駆動トランスの一次コイルに供給し、当該駆動トランスの二次コイルに発生する高周波駆動信号により放電灯を駆動する放電灯駆動制御回路において、
前記駆動トランスの前記一次コイルに一方の端子が接続された微分コンデンサと、該微分コンデンサの他方の端子に接続された平滑コンデンサとを具備し、当該平滑コンデンサの両端に発生する直流電圧を安定化させる直流安定化回路を設け、前記直流安定化回路で発生された直流電圧を、前記インバータ制御回路の動作電源電圧としたことを特徴とする。
24 駆動トランス
24−1 一次コイル
25−1〜25−4 スイッチング回路
26 起動回路
27、28 微分用コンデンサ
31、32 整流用ダイオード
33 平滑用コンデンサ
50 インバータ制御回路駆動電圧発生回路
Claims (3)
- インバータ制御回路と、
前記インバータ制御回路により駆動されるスイッチング回路とを有し、
前記スイッチング回路により直流の駆動電源電圧をスイッチングして駆動トランスの一次コイルに供給し、当該駆動トランスの二次コイルに発生する高周波駆動信号により放電灯を駆動する放電灯駆動制御回路において、
前記駆動トランスの前記一次コイルに一方の端子が接続された微分コンデンサと、該微分コンデンサの他方の端子に接続された平滑コンデンサとを具備し、当該平滑コンデンサの両端に発生する直流電圧を安定化させる直流安定化回路を設け、前記直流安定化回路で発生された直流電圧を、前記インバータ制御回路の動作電源電圧としたことを特徴とする放電灯駆動制御回路。 - 起動回路を更に設け、
前記起動回路は、起動時、前記インバータ制御回路に起動用の直流電圧を供給することを特徴とする請求項1に記載の放電灯駆動制御回路。 - 前記微分コンデンサの前記他方の端子と前記平滑コンデンサとの間に整流ダイオードを接続したことを特徴とする請求項1に記載の放電灯駆動制御回路。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005278647A JP4629541B2 (ja) | 2005-09-26 | 2005-09-26 | 放電灯駆動制御回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005278647A JP4629541B2 (ja) | 2005-09-26 | 2005-09-26 | 放電灯駆動制御回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007087906A JP2007087906A (ja) | 2007-04-05 |
JP4629541B2 true JP4629541B2 (ja) | 2011-02-09 |
Family
ID=37974660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005278647A Expired - Fee Related JP4629541B2 (ja) | 2005-09-26 | 2005-09-26 | 放電灯駆動制御回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4629541B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8040068B2 (en) * | 2009-02-05 | 2011-10-18 | Mks Instruments, Inc. | Radio frequency power control system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01180189U (ja) * | 1988-06-06 | 1989-12-25 | ||
JPH04138066A (ja) * | 1990-09-26 | 1992-05-12 | Toshiba Lighting & Technol Corp | 放電灯点灯装置 |
-
2005
- 2005-09-26 JP JP2005278647A patent/JP4629541B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01180189U (ja) * | 1988-06-06 | 1989-12-25 | ||
JPH04138066A (ja) * | 1990-09-26 | 1992-05-12 | Toshiba Lighting & Technol Corp | 放電灯点灯装置 |
Also Published As
Publication number | Publication date |
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JP2007087906A (ja) | 2007-04-05 |
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