KR100845882B1 - Apparatus for varying output voltage of amplifier of antenna driving unit - Google Patents

Abstract

The present invention relates to a variable output voltage amplifying device of the antenna driving apparatus, and more particularly, in the antenna driving apparatus, the switching is performed according to the presence or absence of the limited area signal output from the antenna assembly is output through the manual mode stage of the phase detection unit A second relay provided between the first resistor and the second resistor to vary the signal level, and connected between the manual mode terminal of the phase detector and the second relay to turn on the second resistance, And a third resistor for dividing the voltage output from the passive mode stage by the resistance value of the second resistor.

Therefore, according to the present invention configured as described above, in the non-limiting region of the manual mode, the motor is operated at a normal speed, and the restoring force of the damper by varying the output applied to the motor from the amplifier so that the motor is operated at a low speed in the limited region. It is possible to prevent the occurrence of mechanical noise due to the motor torque mismatch.

Antenna assembly, passive mode, restricted area, drive speed, deceleration

Description

Amplifying part output voltage variable device of antenna driving device {APPARATUS FOR VARYING OUTPUT VOLTAGE OF AMPLIFIER OF ANTENNA DRIVING UNIT}

1 is a block diagram schematically showing the configuration of a conventional antenna driving apparatus

Figure 2 is a block diagram schematically showing the configuration of the amplifier output voltage variable device of the antenna driving apparatus according to the present invention

<Description of the symbols for the main parts of the drawings>

10 antenna driving device 11 phase detection unit

12: Distribution Resistance 13: First Relay

14: amplifier 15: drive circuit

16: motor 17: external control device

100: amplifying unit output voltage variable device 110: second relay

R1 to R3: First to third resistor SW1: Switch

The present invention relates to a variable output voltage amplifying device of the antenna driving apparatus, and in detail, the output voltage of the amplifying unit for driving the motor of the antenna driving apparatus is varied according to the operation mode region of the antenna driving apparatus in the manual operation mode limited region The present invention relates to an amplifying unit output voltage variable device of an antenna driving device capable of limiting noise.

In general, the antenna of the antenna driving device that controls the shooting of the Balkanpo is divided into a driving mode into a normal mode and a manual mode by an external control device. Each operating mode is further divided into restricted and non-limiting areas. This limited and non-limiting area can be known by the limited area signal received from the antenna assembly.

Referring to FIG. 1, the above-described antenna driving apparatus 10 will be described. The phase detector 11, the distribution resistor 12, the first relay 13, the amplifier 14, and the driving circuit 15 are described. ), A motor 16, and an external control device 17.

The phase detector 11 outputs the sum signal obtained by adding the difference signal and the reference signal in the normal mode to the normal mode stage, and outputs the sum signal of the sum of the fixed difference signal and the reference signal in the manual mode stage in the manual mode. .

The distribution resistor 12 is connected to the passive mode terminal of the phase detector 11 so that the signal output through the passive mode terminal maintains a difference greater than a predetermined level from the signal output from the normal mode terminal. And a second resistor R2.

The first relay 13 is provided between the signal output terminal of the phase detector 11 and the amplifier 14, and is switched in accordance with a control signal output from the external controller 17 to output the signal from the phase detector 11. Optionally pass. Here, the first relay 13 is connected to a contact such that a signal in the normal mode of the phase detector 11 is input to the amplifier 14 in the first off state.                         

The amplifier 14 amplifies and outputs a signal input through the first relay 13, and the driving circuit 15 generates a driving signal through the signal input from the amplifier 14, and the motor 16. Is operated according to the drive signal input from the drive circuit 15 to drive the antenna assembly (not shown).

The external control circuit 17 has a switch SW1 so that a user can select a normal mode and a manual mode according to the selection, and in the manual mode according to the operation of the switch SW1, the first relay 13 is turned on. Turn off the relay in the normal mode.

Referring to FIG. 1, the operation of the antenna driving device is described. First, when the switch SW1 of the external control device 17 is switched to the manual mode, a passage leading to the power supply terminal Vcc, the first relay 13 and the ground is performed. Is activated and the first relay 13 is turned on. Then, since the contact point of the first relay 13 connects the passive mode terminal of the phase detector 11 and the amplifier 14, it is fixed by the first resistor R1 and the second resistor R2, which are the distribution resistors 12. A signal having a difference voltage is applied to the amplifier 14.

Then, the amplifying unit 14 amplifies the input signal and transfers it to the driving circuit 15, the driving circuit 15 generates a driving signal corresponding thereto to drive the motor 16.

However, such a conventional antenna driving device is designed to output a signal having a constant difference voltage at the passive mode stage of the phase detection unit without distinguishing the restricted region and the non-limited region, and the rubber damper attached to the antenna assembly in the restricted region. By the mechanical limit is operated, there is a problem that mechanical noise (oscillation) occurs due to the mismatch of the restoring force of the damper and the motor torque.

Therefore, an object of the present invention is to solve the above problems, the output is applied to the motor from the amplifier so that the motor is operated at a normal speed in the non-limiting region of the manual mode, and the motor is operated at a low speed in the limited region. It is to prevent the occurrence of mechanical noise due to the mismatch of damper restoring force and motor torque.

Features of the present invention for achieving the above object,

A divider resistor comprising a phase detector for outputting signals to the normal mode and the passive mode, respectively, and a first resistor and a second resistor connected to the passive mode of the phase detector to distribute the voltage of the signal output through the passive mode; And a first relay switched according to a control signal output from the outside, and selectively transmitting a signal output from the phase detection unit, an amplifying unit amplifying and outputting a signal input through the first relay, and the amplifying unit. A drive circuit for generating a drive signal through a signal input from the drive circuit; a motor operated according to the drive signal input from the drive circuit to drive the antenna assembly; and a switch for selecting a normal mode and a manual mode. An internal control circuit configured to turn on / off the first relay according to an operation of In the drive system or,

A second relay provided between the first resistor and the second resistor to switch in accordance with the presence or absence of the restricted area signal output from the antenna assembly to vary the signal level output through the passive mode terminal of the phase detector; ,

A third resistor connected between the passive mode terminal of the phase detector and the second relay to divide the voltage output from the passive mode terminal by a self resistance value and a resistance value of the second resistor when the second relay is turned on; It is characterized by including.

Here, the third resistor,

The resistance value is higher than the resistance value of the first resistor.

Hereinafter, the configuration of the amplifying unit output voltage variable device of the antenna driving apparatus according to the present invention will be described in detail with reference to FIG. In FIG. 2, the same parts as those of the antenna driving apparatus shown in FIG. 1 are denoted by the same reference numerals as in FIG. 1, and description thereof will be omitted.

2 is a block diagram schematically illustrating a configuration of an amplifier output voltage variable device of an antenna driving apparatus according to the present invention.

Referring to FIG. 2, the amplifying unit output voltage variable device 100 of the antenna driving apparatus according to the present invention includes a second relay 110 and a third resistor R3.

The second relay 110 is switched in accordance with the presence or absence of the restricted area signal output from the antenna assembly to change the signal level output through the passive mode stage of the phase detector 11 and the first resistor R1 and the second resistor. It is provided between R2.

The third resistor R3 is connected between the manual mode terminal of the phase detector 11 and the second relay 110 so that when the second relay 110 is turned on, the third resistor R3 is applied to the self resistance value and the resistance value of the second resistor R2. This divides the voltage output from the manual mode stage. Here, the third resistor R3 has a resistance value higher than that of the first resistor R1 so that a voltage value lower than the non-limiting region is transferred to the amplifier 14.

Hereinafter, the operation of the amplifier output voltage variable device of the antenna driving apparatus according to the present invention will be described with reference to FIG.

First, when the switch SW1 of the external control device 17 is switched to the manual mode, a path leading to the power supply terminal Vcc, the first relay 13 and the ground is activated, and the first relay 13 is turned on. In this case, when the limited area signal is opened from the antenna assembly and is a non-limiting area, the contact of the first relay 13 connects the passive mode terminal of the phase detector 11 and the amplifier 14 as in the related art. Since the 110 is not operated, the signal output through the passive mode stage is distributed by the first resistor R1 and the second resistor R2, and the divided signal is applied to the amplifier 14.

On the contrary, when the switch SW1 of the external control device 17 is switched to the manual mode, a passage leading to the power supply terminal Vcc, the first relay 13 and the ground is activated, and the first relay 13 is turned on. In this case, when the restricted area signal is grounded from the antenna assembly and is the limited area, the power terminal Vcc and the second relay 110 and the restricted area signal, ie, a path leading to the ground, are activated to turn on the second relay 110. do. Accordingly, the signal output through the passive mode stage is distributed by the third resistor R3 and the second resistor R2, and the divided signal is applied to the amplifier 14.

At this time, since the resistance value of the third resistor R3 is higher than the resistance value of the first resistor R1, a voltage value lower than the non-limiting region is transmitted to the amplifier 14 in the limited region. As a result, since a low voltage value is input to the amplifier 14, the torque of the motor 16 is lowered, thereby lowering the speed of driving the antenna assembly.

Therefore, by using the limited area signal generated by the antenna assembly to drive the antenna assembly by dividing the non-restricted area and the limited area in the amplifier, it is possible to solve the mechanical problem that may occur in the limited area.

As described above, according to the amplifying unit output voltage variable device of the antenna driving apparatus according to the present invention, in the non-limiting region of the manual mode, the motor is operated at a normal speed, and the amplifier is operated at a low speed in the limited region. By varying the output applied to the motor at the can be prevented from generating mechanical noise due to the mismatch between the restoring force of the damper and the motor torque.

Claims (2)

A divider resistor comprising a phase detector for outputting signals to the normal mode and the passive mode, respectively, and a first resistor and a second resistor connected to the passive mode of the phase detector to distribute the voltage of the signal output through the passive mode; And a first relay switched according to a control signal output from the outside, and selectively transmitting a signal output from the phase detection unit, an amplifying unit amplifying and outputting a signal input through the first relay, and the amplifying unit. A drive circuit for generating a drive signal through a signal input from the drive circuit; a motor operated according to the drive signal input from the drive circuit to drive the antenna assembly; and a switch for selecting a normal mode and a manual mode. An internal control circuit configured to turn on / off the first relay according to an operation of In the drive system or, A second relay disposed between the first resistor and the second resistor to switch in accordance with the presence or absence of the restricted area signal output from the antenna assembly to vary the signal level output through the passive mode terminal of the phase detector; A third resistor connected between the passive mode terminal of the phase detector and the second relay to divide the voltage output from the passive mode terminal by a self resistance value and a resistance value of the second resistor when the second relay is turned on; Amplifying unit output voltage variable device of the antenna driving device comprising a. The method of claim 1, The third resistor is, Amplifying unit output voltage variable device of the antenna drive device characterized in that it has a resistance value higher than the resistance value of the first resistor.

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