JPS6362850U - - Google Patents
Info
- Publication number
- JPS6362850U JPS6362850U JP15744786U JP15744786U JPS6362850U JP S6362850 U JPS6362850 U JP S6362850U JP 15744786 U JP15744786 U JP 15744786U JP 15744786 U JP15744786 U JP 15744786U JP S6362850 U JPS6362850 U JP S6362850U
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- circuit
- bias
- transformer
- positive
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims 7
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
- Control Of Voltage And Current In General (AREA)
Description
第1図は本考案の一実施例を示す回路図、第2
図はその出力電圧波形図である。
1…直流電源、2…AC出力制御回路、3…発
振回路、4…スイツチング回路、5…トランス、
7…負荷、8…バイアス制御回路、9…バイアス
回路、10…正負両成分検出回路、VR1…第1
の可変抵抗器、VR2…第2の可変抵抗器。
Figure 1 is a circuit diagram showing one embodiment of the present invention, Figure 2 is a circuit diagram showing an embodiment of the present invention.
The figure is a diagram of the output voltage waveform. 1...DC power supply, 2...AC output control circuit, 3...oscillation circuit, 4...switching circuit, 5...transformer,
7...Load, 8...Bias control circuit, 9...Bias circuit, 10...Both positive and negative component detection circuit, VR 1 ...First
variable resistor, VR 2 ...second variable resistor.
Claims (1)
ランスと、このトランスの1次巻線に直流電圧を
断続的に印加するスイツチング回路と、この印加
により該トランスの2次巻線に生じた交流電圧に
直流バイアス電圧を重畳するバイアス回路とを有
し、直流バイアスされた交流出力を負荷に供給す
るようにした複写機用交流高圧電源装置において
、該スイツチング回路駆動用の矩形波信号を発生
する発振回路と、該トランスの2次巻線に生ずる
交流電圧を、該トランスの制御巻線より制御する
AC出力制御回路と、このAC出力制御回路を介
して該交流電圧を調整可能な第1の可変抵抗器と
、該負荷に流れる電流の正成分及び負成分を検出
する正負両成分検出回路と、該バイアス回路にお
ける直流バイアス電圧を調整可能な第2の可変抵
抗器と、この調整に従つてバイアス制御を行うと
共に、該正負両成分検出回路出力の変動に基づい
て負荷電流の正負両成分の差が一定となるように
直流バイアス電圧を修正するバイアス制御回路と
を有することを特徴とする複写機用交流高圧電源
装置。 A transformer comprising a primary winding, a secondary winding, and a control winding, a switching circuit that intermittently applies a DC voltage to the primary winding of the transformer, and a switching circuit that intermittently applies a DC voltage to the primary winding of the transformer. In an AC high-voltage power supply device for a copying machine, which has a bias circuit that superimposes a DC bias voltage on an AC voltage generated by An oscillation circuit that generates a signal, an AC output control circuit that controls the AC voltage generated in the secondary winding of the transformer from the control winding of the transformer, and the AC voltage can be adjusted via the AC output control circuit. a first variable resistor, a positive and negative component detection circuit that detects the positive and negative components of the current flowing through the load, a second variable resistor that can adjust the DC bias voltage in the bias circuit; and a bias control circuit that performs bias control in accordance with the adjustment and corrects the DC bias voltage so that the difference between the positive and negative components of the load current is constant based on fluctuations in the output of the positive and negative component detection circuit. Features: AC high voltage power supply for copying machines.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15744786U JPS6362850U (en) | 1986-10-14 | 1986-10-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15744786U JPS6362850U (en) | 1986-10-14 | 1986-10-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6362850U true JPS6362850U (en) | 1988-04-26 |
Family
ID=31080002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15744786U Pending JPS6362850U (en) | 1986-10-14 | 1986-10-14 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6362850U (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5242219A (en) * | 1975-09-26 | 1977-04-01 | Xerox Corp | High voltage ac power source providing with variable dc bias power source |
JPS5970188A (en) * | 1982-10-13 | 1984-04-20 | Nagano Aichi Denki Kk | Ac power source for electronic copying machine |
-
1986
- 1986-10-14 JP JP15744786U patent/JPS6362850U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5242219A (en) * | 1975-09-26 | 1977-04-01 | Xerox Corp | High voltage ac power source providing with variable dc bias power source |
JPS5970188A (en) * | 1982-10-13 | 1984-04-20 | Nagano Aichi Denki Kk | Ac power source for electronic copying machine |
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