JPH0242397U - - Google Patents
Info
- Publication number
- JPH0242397U JPH0242397U JP12047388U JP12047388U JPH0242397U JP H0242397 U JPH0242397 U JP H0242397U JP 12047388 U JP12047388 U JP 12047388U JP 12047388 U JP12047388 U JP 12047388U JP H0242397 U JPH0242397 U JP H0242397U
- Authority
- JP
- Japan
- Prior art keywords
- diode
- diodes
- anodes
- cathode
- lighting device
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000009499 grossing Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
- Rectifiers (AREA)
Description
第１図はこの考案の一実施例である放電灯点灯
装置における主要部の概略を示すブロツク図、第
２図ａは第１図の倍電圧整流回路の出力電圧を平
滑用の電解コンデンサで平滑した後の電圧波形図
、同図ｂは同図ａの電圧をチヨツパ回路において
非常に短い周期でＯＮ／ＯＦＦさせて短冊状に区
分した電圧波形図、同図ｃは同図ｂの電圧をチヨ
ツパ回路内のチヨークコイルで平滑した後の電圧
波形図、第３図は従来の倍電圧回路を用いた放電
灯点灯装置の主要部の概略構成を示すブロツク図
である。
図中．１０：三相交流電源、１１：ノイズ防止
回路、１２：倍電圧回路、１３：チヨツパ回路、
１４：極性切替回路。
Fig. 1 is a block diagram showing the outline of the main parts of a discharge lamp lighting device which is an embodiment of this invention, and Fig. 2a shows the output voltage of the voltage doubler rectifier circuit in Fig. 1 smoothed by a smoothing electrolytic capacitor. Figure b is a voltage waveform diagram in which the voltage in figure a is divided into strips by turning it on and off in very short cycles in a chopper circuit, Figure c is a voltage waveform diagram in which the voltage in figure b is divided into strips by chopping it FIG. 3 is a diagram showing a voltage waveform after smoothing by a choke coil in the circuit. FIG. 3 is a block diagram showing a schematic configuration of the main parts of a discharge lamp lighting device using a conventional voltage doubler circuit. In the figure. 10: Three-phase AC power supply, 11: Noise prevention circuit, 12: Voltage doubler circuit, 13: Chopper circuit,
14: Polarity switching circuit.
Claims (1)
であつて、この三相交流電源の各入力線には第１
、第２、第３の各ダイオードの各アノードがそれ
ぞれ接続され、これら第１、第２、第３の各ダイ
オードの各カソードには第４、第５、第６の各ダ
イオードの各アノードがそれぞれ接続され、さら
に第１のダイオードのカソードと第２のダイオー
ドのアノードとの間、第２のダイオードのカソー
ドと第３のダイオードのアノードとの間、及び第
３のダイオードのカソードと第１のダイオードの
アノードとの間にそれぞれ第１、第２、第３のコ
ンデンサが接続され、そして、前記第４、第５、
第６の各ダイオードの各カソードを結ぶ側に第４
のコンデンサの一方の端子に接続され、第４のコ
ンデンサの他方の端子に第７、第８、第９の各ダ
イオードの各アノードが接続され、これら第７、
第８、第９の各ダイオードの各カソードにはそれ
ぞれ前記第１、第２、第３の各ダイオードの各ア
ノードがそれぞれ接続された倍電圧回路を有する
ことを特徴とする放電灯点灯装置。 This is a discharge lamp lighting device that is lit by a three-phase AC power source, and each input line of the three-phase AC power source has a first
, the anodes of the second and third diodes are connected to each other, and the anodes of the fourth, fifth and sixth diodes are connected to the cathodes of the first, second and third diodes, respectively. connected between the cathode of the first diode and the anode of the second diode, between the cathode of the second diode and the anode of the third diode, and between the cathode of the third diode and the first diode. first, second, and third capacitors are connected between the anodes of the fourth, fifth, and fourth capacitors, respectively.
A fourth diode is connected to each cathode of each sixth diode.
is connected to one terminal of the capacitor, and the anodes of the seventh, eighth, and ninth diodes are connected to the other terminal of the fourth capacitor.
A discharge lamp lighting device comprising a voltage doubler circuit in which the anodes of the first, second, and third diodes are respectively connected to the cathodes of the eighth and ninth diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12047388U JPH0633676Y2 (en) | 1988-09-16 | 1988-09-16 | Discharge lamp lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12047388U JPH0633676Y2 (en) | 1988-09-16 | 1988-09-16 | Discharge lamp lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0242397U true JPH0242397U (en) | 1990-03-23 |
| JPH0633676Y2 JPH0633676Y2 (en) | 1994-08-31 |
Family
ID=31366613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12047388U Expired - Lifetime JPH0633676Y2 (en) | 1988-09-16 | 1988-09-16 | Discharge lamp lighting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0633676Y2 (en) |
-
1988
- 1988-09-16 JP JP12047388U patent/JPH0633676Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0633676Y2 (en) | 1994-08-31 |