| Document |
Document Title |
|
JPH08129945A |
PURPOSE: To speedily and reliably stop current-carrying to a heating heater when a contact point of a relay is welded. CONSTITUTION: When a contact point 2A is turned on when a driving signal is not sent out of a control device 18, a con...
|
|
JPH08107632A |
To provide a switching device which exhibits a protective function, even if a power supply voltage is connected with incorrect polarity. At least 1st and 2nd transistors 110 and 120 are provided in a switching device 101 having 1st and 2...
|
|
JPH08503598A |
An automotive battery charger or other electrical device which draws substantial amounts of power is provided with a variable delay mechanism which prevents turn on of the device when power is applied. The duration of the delay is determ...
|
|
JPH0827319B2 |
|
|
JPH0865888A |
PURPOSE: To protect an electric apparatus from a harmful voltage when the electric apparatus is connected to an erroneous power supply. CONSTITUTION: A make/break switch 6 under control of a control circuit 7 is connected in a power-supp...
|
|
JPH0851723A |
To provide a power source unit for presenting a system with an optical source capable of feeding excessive power, which is provided with a protecting circuit momentary surge on an input line at the time of feeding excessive power for the...
|
|
JPH087647B2 |
The invention electronically identifies whether a computer module board is placed in the correct mechanical slot in a computer frame. A conductive line is connected to at least one electronic connector location in each mechanical slot in...
|
|
JPH089552A |
PURPOSE: To reduce the loss of the elective breaking circuit of a parallel running DC power supply, by eliminating the voltage drop of its current sensing circuit through the direct sensing of the current flowing in a MOSFET. CONSTITUTIO...
|
|
JPH089551A |
PURPOSE: To make the recognizing of the fault of an apparatus by a user easy and improve the safety of the apparatus, by reporting the abnormality and defect of the power supply part of the apparatus to the user, and by making the re-ope...
|
|
JPH07118836B2 |
|
|
JPH07322484A |
PURPOSE: To report inverse connection without damaging a rush current suppression resistor when wiring is inverted by connecting a diode in series with a resistor for suppressing rush current and connecting a switch to their both termina...
|
|
JPH07322488A |
PURPOSE: To provide an effective power supply protection circuit in a mobile satellite communication device which is used after it is mounted in an automobile, a streetcar etc. CONSTITUTION: The title circuit is provided with relay switc...
|
|
JPH07106026B2 |
A protective arrangement for an electromagnetic load is disclosed. In this protective arrangement, the load and a control transistor form a series circuit from the battery voltage to ground and a series circuit of a free-wheeling transis...
|
|
JPH07284929A |
PURPOSE: To prevent the defective work without feeding back an abnormal load voltage value by intermitting the output of an electric power for working at the time of occurring the abnormality in the load voltage value caused by the abnor...
|
|
JPH07284274A |
PURPOSE: To prevent the operation of a power supply circuit, when the first switching element is shorted by a failure. CONSTITUTION: This power supply circuit has a rectifying means 1, having an AC voltage input terminal 3 and an output ...
|
|
JPH07509834A |
A reverse-polarity protection is disclosed for coupling an electric circuit (2) to an energy and information conducting conductor system (3). At least one coupling path (5) comprises a controllable element (4) as reverse-polarity protect...
|
|
JPH07509833A |
A reverse-polarity protection is disclosed for coupling an electric circuit (2) to an energy and information conducting conductor system (3). At least one coupling path (5) comprises a controllable element (4) as reverse-polarity protect...
|
|
JPH0746038Y2 |
|
|
JPH07255124A |
PURPOSE: To determine correct phase sequence easily by an arrangement wherein an impedance connects two resistors of equivalent system and one capacitor in Y and the difference of output from analog comparison networks connected, in row,...
|
|
JPH0789005B2 |
A control circuit for a refrigerator combined with a microwave oven includes signal delay selecting and comparing circuitry start sensing circuitry timer circuitry and load driving circuitry in order to properly control operations of the...
|
|
JPH0777686B2 |
A magnet base drill unit in which the driving of the drill motor and the feed motor of the magnet base drill unit is stopped by operation of the switch which operates on the instant when sliding has been produced in the magnet base drill...
|
|
JPH0733556Y2 |
|
|
JPH0739250U |
[Purpose] Provided is a load drive circuit having a function of cutting the energization of the load when the load is short-circuited and capable of preventing abnormal heat generation of the voltage dividing resistor. [Constitution] If ...
|
|
JPH0729543Y2 |
|
|
JPH07505997A |
A drive train for an electric vehicle includes a traction battery, a power drive circuit, a main contactor for connecting and disconnecting the traction battery and the power drive circuit, a voltage detector across contacts of the main ...
|
|
JPH0724909Y2 |
|
|
JPH07143669A |
PURPOSE: To cut off a load from an AC power supply, when a load current leaks to the ground by a method, wherein 1st and 2nd transformers having primary coils are provided so as to generate outputs the phases of which are opposite to the...
|
|
JPH07123588A |
PURPOSE: To prevent continuous operation of a machine while connecting a part of batteries reversely to other batteries by comparing the initial voltage of power supply, immediately after conduction thereof, with a set level and controll...
|
|
JPH0714254B2 |
A relay includes a movable element having first and second portions separated from each other. The first portion can be moved between a first stable position corresponding to a state where contacts are closed and a second stable position...
|
|
JPH079040U |
[Purpose] In a transistor switch circuit that supplies power to a load, a circuit having a simple configuration that prevents the transistor from being destroyed when an overcurrent flows is provided. [Constitution] A first transistor Q1...
|
|
JPH0715869A |
PURPOSE: To inhibit supply of an AC current to a switching power source at the time of a malfunction of an AC power source and a controller by simply suppressing a rush current at the time of ON of a power switch with a low cost. CONSTIT...
|
|
JPH077847A |
PURPOSE: To simplify the selection of fuses and to protect overcurrent without changing the characteristics of a circuit by detecting the voltage drop by overcurrent of a semiconductor switch for turning on/off the power output line of a...
|
|
JPH06105785B2 |
In power integrated circuits having both control circuit components and at least one power device, the circuit components are typically isolated from the power device by placing them in separate "wells" of opposite conductivity type to t...
|
|
JPH06327151A |
PURPOSE: To realize easy and positive protection regardless of the connection mode of a power supply. CONSTITUTION: A diode 12 is turned ON or OFF depending on the fact that a power supply to be connected with a positive power supply 16 ...
|
|
JPH06327145A |
PURPOSE: To prevent an abnormality from spreading from a part of circuit to other parts by a opening a power supply relay based on an abnormality detection signal upon occurrence of abnormality in the circuit of a set thereby entirely in...
|
|
JPH06325654A |
PURPOSE: To provide an electric fault controller to dissolve a danger of melting the electric contacts in the power circuit of a receiver. CONSTITUTION: This failure controller 10 is equipped with an operation mechanism of an electric co...
|
|
JPH0681010U |
[Purpose] By improving the surge voltage cutoff performance of the protection circuit of in-vehicle electronic devices, it is possible to reduce the design withstand voltage of the power supply unit, and to reduce the size and weight. [C...
|
|
JPH06319293A |
PURPOSE: To make it possible to prevent the failures of electric components even though there are some errors in connections of power supply terminals and neutral terminals to an AC power supply by interrupting the uptake of a voltage ex...
|
|
JPH06296323A |
PURPOSE: To provide an abnormal current detecting circuit which can surely detect all of abnormal currents under load with simple arrangement. CONSTITUTION: This abnormal current detecting circuit is provided with a current detecting res...
|
|
JPH06284567A |
PURPOSE: To make it possible to apply electricity again by opening a line inside an equipment after the line was opened without turning off a power supply switch attached to the equipment by connecting a restore button switch operable fr...
|
|
JPH06284571A |
PURPOSE: To provide a rush current prevention circuit equipped with a safety circuit for turning off power supply for preventing the burning of a soft start resistor when an excitation operation failure occurred to a relay for short- cir...
|
|
JPH06284643A |
PURPOSE: To monitor ground fault of field winding without employing any rotary transformer for feeding power to a rotary section and transmitting a detection signal to a fixed section. CONSTITUTION: In the ground fault monitor for the fi...
|
|
JPH0667413B2 |
|
|
JPH06237533A |
PURPOSE: To separate a voltage from an outlet when the outlet is not used by a load by providing a means for detecting a plug in the socket of the outlet and a coupling means that is normally open between a power distribution line and th...
|
|
JPH0652342U |
[Purpose] Provided is a load connection abnormality detector capable of detecting an abnormal state such as a disconnection or ungrounding of a load connection connecting an output generator of a DC power supply device and a load. [Const...
|
|
JPH06197444A |
PURPOSE: To provide an economical, highly reliable, small-sized and light weight electronic protective device for motor from ultra excessive high-temperature condition, which can also be used for an AC line-to-line voltage of various vol...
|
|
JPH06189442A |
PURPOSE: To provide a short-circuit protective circuit for detecting an overcurrent caused by short-circuit of an apparatus using a DC power and limiting the overcurrent to a certain value or less and turning off a power supply if necess...
|
|
JPH0652492B2 |
A mains-voltage discrimination device for adapting a load (8) to a lower or higher alternating-voltage range is described. Discrimination is effected by means of a voltage-dependent resistor (1) which is thermally coupled to a PTC-resist...
|
|
JPH06141477A |
PURPOSE: To provide a battery type power mechanism which has a power breaker circuit capable of preventing the on-off repeat operation occurring when the output voltage of a battery drops below the specified voltage by battery consumptio...
|
|
JPH06133451A |
PURPOSE: To prevent the restarting of a power supply circuit when a thermal guide is once operated and becomes the open state and thereafter a make state is obtained again. CONSTITUTION: When an AC starting voltage (Vcc) 20 is inputted, ...
|
