JPS6069592U

JPS6069592U - Inductive load current supply circuit

Info

Publication number: JPS6069592U
Application number: JP16187183U
Authority: JP
Inventors: 小野　道成
Original assignee: 株式会社東芝
Priority date: 1983-10-19
Filing date: 1983-10-19
Publication date: 1985-05-17

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

・・　第１図は従来の負荷電流供給回路を示す回路図、
第２図はこの考案に係る誘導性負荷電流供給回路の一実
施例を示す回路図、第３図は上記実施例の動作を説明す
るための波形図、第４図は上記実施例で誘導性負荷に所
要負荷電流を供給する手段を説明するための波形図であ
る。１１．１２・・・・・・出力用トランジスタ、１３・・
・・・・正電源、１４・・・・・・負電源、１５・・・
・・・アナログ駆動信号源、１６・・・・・・負荷、１
７，１８・・・・・・スイッチングトランジスタ、１９
・・・・・・パルス駆動信号源、２０・・・・・・誘導
性負荷、２１，２２・・・・・・転流ダイオード。・・Figure 1 is a circuit diagram showing a conventional load current supply circuit.
Fig. 2 is a circuit diagram showing an embodiment of the inductive load current supply circuit according to this invention, Fig. 3 is a waveform diagram for explaining the operation of the above embodiment, and Fig. 4 is a circuit diagram showing an embodiment of the inductive load current supply circuit according to the invention. FIG. 3 is a waveform diagram for explaining means for supplying a required load current to a load. 11.12... Output transistor, 13...
...Positive power supply, 14...Negative power supply, 15...
...Analog drive signal source, 16...Load, 1
7, 18...Switching transistor, 19
. . . Pulse drive signal source, 20 . . . Inductive load, 21, 22 . . . Commutation diode.

Claims

[Scope of utility model registration request]

A pair of switching transistors that are push-pull connected to an inductive load, and a pulse drive signal for switching the pair of switching transistors in a saturated state is modulated in pulse width in accordance with the required load current to switch the pair of transistors. a pulse drive signal source that supplies the transistor; a power supply that supplies current to the inductive load when one of the pair of switching transistors is turned on; and a power supply that supplies current to the inductive load when one of the pair of switching transistors is turned on; An inductive load current supply circuit comprising: a current commutation element that guides a back electromotive current generated in the inductive load to the inductive load when current is cut off from the inductive load.