TH14871B - A control system that includes switching circuits to provide optimal operation when the operating power is cut off from the control system. - Google Patents

Abstract

The connection for ensuring that the appropriate level of control for the regulated unit is maintained when the supply voltage is moved from the control unit of the control system consists of a switch circuit connected between the control unit and the unit. controlled The regulated unit connects the control signal generated by the regulated unit to the regulated unit when the supply voltage occurs and responds to the interruption of the supply voltage for the unit isolating point. Control the inlet point of the regulated unit in this form. The current line generated by the protection circuit inside the control unit when the supply voltage is applied from the regulated unit will not adversely affect the operation of the unit with it. control

Claims (2)

1. In electronic devices which are switched on and off This device contains A regulated unit that receives the first source voltage even when the equipment is turned off and contains a control device for controlling the specific operation of the regulated unit in response to a connected control signal. With the entry point of the control device The control unit which receives the secondary supply voltage. And generate a control signal at the exit point when the device is turned on; And a switch for connecting the control signal generated at the output point of the control unit to the control device's entry point when the second source voltage occurs. And for separating the control device's entry point from the control unit exit when the second source voltage is lost. A switch that responds to the occurrence of a second source voltage for connecting the control signal generated at the output point of the control unit to the input of the control device. And responds to the absence of a secondary supply voltage for the separation of the control device entry point from the control unit exit point. 2. In electronic devices which are switched on and off This device contains A regulated unit that receives the primary supply voltage even when the equipment is turned off and which consists of a control device which also receives the primary source voltage. Even if the device is turned off, and this controls the specific operation of the regulated device in response to a control signal connected to the input point of the control device. A control unit which receives a secondary supply voltage only when the device is switched on. And generates a control signal at the output point of the control unit only when the device is switched on and switches for connecting the control signal generated at the exit point of the control unit to the entry point of the control device in response to a duty voltage source. Pay second Each for separating the control device's entry point from the control unit's exit point in response to a second failure of the supply voltage. And switches with a first and second point And a control point for controlling the conductivity of the switch between the first and second sequence. The force sequence point is connected to the exit point of the control unit. The second point is connected to the entry point of the control device. And the aforementioned second source voltage is connected to the said control point.