JPH0343754U - - Google Patents
Info
- Publication number
- JPH0343754U JPH0343754U JP10464289U JP10464289U JPH0343754U JP H0343754 U JPH0343754 U JP H0343754U JP 10464289 U JP10464289 U JP 10464289U JP 10464289 U JP10464289 U JP 10464289U JP H0343754 U JPH0343754 U JP H0343754U
- Authority
- JP
- Japan
- Prior art keywords
- gate
- resistor
- mosfet
- opens
- power mosfet
- 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
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Lasers (AREA)
- Electronic Switches (AREA)
Description
第１図はこの考案の一実施例によるレーザ発振
器用パワーＭＯＳＦＥＴ駆動回路を示す回路図。
第２図は従来のレーザ発振器用パワーＭＯＳＦＥ
Ｔ駆動回路を示し、第２図Ａは回路図、第２図Ｂ
はパワーＭＯＳＦＥＴにより構成されたスイツチ
ング電源を示す図である。
図において、１ＡはパワーＭＯＳＦＥＴ、２は
ＭＯＳＦＥＴドライバ、３ａ，３ｂはインバータ
アーム、４はＰチヤネルＭＯＳＦＥＴ、５はＮチ
ヤネルＭＯＳＦＥＴ、６はプルダウン抵抗、８は
プルアツプ抵抗、９ＡはパワーＭＯＳＦＥＴ駆動
回路、１１は緑色ＬＥＤ、１２は赤色ＬＥＤ、１
４はゲート抵抗用ヒユーズ抵抗、１５はＬＥＤ点
燈用ヒユーズ抵抗である。なお、図中、同一符号
は同一、又は相当部分を示す。
FIG. 1 is a circuit diagram showing a power MOSFET drive circuit for a laser oscillator according to an embodiment of the invention.
Figure 2 shows a conventional power MOSFE for laser oscillators.
The T drive circuit is shown, FIG. 2A is a circuit diagram, and FIG. 2B is
1 is a diagram showing a switching power supply configured by power MOSFETs. In the figure, 1A is a power MOSFET, 2 is a MOSFET driver, 3a and 3b are inverter arms, 4 is a P-channel MOSFET, 5 is an N-channel MOSFET, 6 is a pull-down resistor, 8 is a pull-up resistor, 9A is a power MOSFET drive circuit, 11 is a green LED, 12 is a red LED, 1
4 is a fuse resistor for gate resistance, and 15 is a fuse resistor for LED lighting. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.
Claims (1)
構成するレーザ発振器の電源において、 パワーＭＯＳＦＥＴを駆動するゲート増幅器に
、通電々流によりゲート増幅器を開路とするゲー
ト抵抗と、通電々流によりパワーＭＯＳＦＥＴの
ゲートを開路とするＬＥＤ駆動用抵抗に、ヒユー
ズ抵抗を用い、備えたことを特徴とするレーザ発
振器用パワーＭＯＳＦＥＴ駆動回路。[Scope of Claim for Utility Model Registration] In the power supply of a laser oscillator that constitutes a switching power supply using a power MOSFET, a gate amplifier that drives the power MOSFET is provided with a gate resistor that opens the gate amplifier by a current carrying current, and a gate resistor that opens the gate amplifier by a current carrying current. A power MOSFET drive circuit for a laser oscillator, characterized in that a fuse resistor is used as an LED drive resistor that opens the gate of the MOSFET.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10464289U JPH0343754U (en) | 1989-09-06 | 1989-09-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10464289U JPH0343754U (en) | 1989-09-06 | 1989-09-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0343754U true JPH0343754U (en) | 1991-04-24 |
Family
ID=31653431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10464289U Pending JPH0343754U (en) | 1989-09-06 | 1989-09-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0343754U (en) |
-
1989
- 1989-09-06 JP JP10464289U patent/JPH0343754U/ja active Pending