JPH03101179U

JPH03101179U -

Info

Publication number: JPH03101179U
Application number: JP728090U
Authority: JP
Priority date: 1990-01-29
Filing date: 1990-01-29
Publication date: 1991-10-22

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例による電源装置を
示す図、第２図はこの考案によるトランス電流検
出器の一実施例を示す図、第３図はこの考案によ
るトランス電流検出器の他の実施例を示す図、第
４図は電源装置の一例を示す図、第５図はこの考
案による負荷の動作領域の一例を示す図、第６図
は従来の電源装置による負荷の動作領域の一例を
示す図であり、図において、１……直流電源、２
と１２……トランス、３……トランジスタ、４…
…ダイオード、５……コンデンサ、６……整流回
路、７……負荷、８と１３……抵抗、９……パル
ス幅制御回路、１０……ドライブ回路、１１……
トランス電流検出器、１４と１５……端子である
。なお、図中、同一符号は同一、または相当部分
を示す。 Fig. 1 is a diagram showing a power supply device according to an embodiment of this invention, Fig. 2 is a diagram showing an embodiment of a transformer current detector according to this invention, and Fig. 3 is a diagram showing another embodiment of a transformer current detector according to this invention. 4 is a diagram showing an example of a power supply device, FIG. 5 is a diagram showing an example of a load operating range according to this invention, and FIG. 6 is an example of a load operating range by a conventional power supply device. In the figure, 1...DC power supply, 2
and 12...transistor, 3...transistor, 4...
... Diode, 5 ... Capacitor, 6 ... Rectifier circuit, 7 ... Load, 8 and 13 ... Resistor, 9 ... Pulse width control circuit, 10 ... Drive circuit, 11 ...
Transformer current detector, 14 and 15...terminals. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

A power supply device for the purpose of supplying power to a load having impedance characteristics that suddenly changes, such as a discharge phenomenon, includes a DC power supply and a switching element that connects and disconnects the voltage of the DC power supply, and a switching element that connects the voltage of the DC power supply. a transformer whose primary and secondary polarities are reversely connected to each other for transmitting intermittent voltage; a rectifier circuit that rectifies the voltage transmitted from the transformer; a load that receives power output from the rectifier circuit; A resistor that detects the current flowing to the load, a transformer current detector that detects the current flowing to the primary side of the transformer, a drive circuit that drives the switching element, and control of the current, voltage, and power supplied to the load. A pulse width control circuit for the purpose of A power supply device that utilizes a current flowing to the next side, wherein the transformer current detector is comprised of a transformer and a resistor for the purpose of insulating the DC power supply and the pulse width control circuit.