CN2757434Y - Transceiver with power control circuit - Google Patents
Transceiver with power control circuit Download PDFInfo
- Publication number
- CN2757434Y CN2757434Y CNU2004200731102U CN200420073110U CN2757434Y CN 2757434 Y CN2757434 Y CN 2757434Y CN U2004200731102 U CNU2004200731102 U CN U2004200731102U CN 200420073110 U CN200420073110 U CN 200420073110U CN 2757434 Y CN2757434 Y CN 2757434Y
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- CN
- China
- Prior art keywords
- power control
- control circuit
- circuit
- transceiver
- instruction
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a transceiver with a power control circuit, which comprises an MCU, a power control circuit and a transmitting/receiving circuit, wherein the MCU is used for detecting the strength of received data signals and data grouping addresses, and transmitting a first command according to a detecting result; the power control circuit is used for receiving the first command transmitted by the MCU and transmitting a power control signal according to the received command; the transmitting/receiving circuit is used for switching on/off a power supply according to the power control signal from the power control circuit.
Description
Technical field
The utility model relates to a kind of transceiver with power control circuit, particularly a kind of modulator-demodulator with power control circuit.
Background technology
Transceiver is widely used in the communication system now, and it is used to send signal and received signal.Transceiver generally includes a transmission/receiving circuit, a modulation-demodulation circuit and a CPU.Transmission/receiving circuit is used to receive from the signal of outside with signal and sends to the outside.Modulation-demodulation circuit is used for the modulating/demodulating signal, and CPU is used to control the work of whole transceiver.
Usually, the transmission/receiving circuit of transceiver has the power supply that makes its operate as normal.The state that the power supply of transmission/receiving circuit always is in out that is to say, the power supply of transmission/receiving circuit is always powered to transmission/receiving circuit.Be unfavorable for that the situation that sends/receive exists but often have, for example the signal strength signal intensity of the signal of Jie Shouing is not enough, does not perhaps have active data grouping address.When transceiver was in these situations that are unfavorable for sending/receive, this power supply powered also still for transmissions/receiving circuit, thereby causes the excessive and serious waste of power consumption.
Summary of the invention
Technical problem to be solved in the utility model is to solve the excessive problem of power consumption in the existing transceiver.
Transceiver of the present utility model comprises a MCU, it detects the intensity and the packet address of the data-signal that receives, and the result according to this detection sends first instruction, one power control circuit, it receives first instruction that MCU sends, and send a power control signal and a transmission/receiving circuit according to the instruction that receives, it is according to opening/its power supply of dormancy from the power control signal of power control circuit.
The utility model detects the signal strength signal intensity of the signal that receives and the packet address of received signal by MCU, whether the result's decision according to this detection sends the instruction that the power supply that makes transmission/receiving circuit is in resting state, power control circuit is according to the power supply of this commands for controlling transmission/receiving circuit, thereby can realize the saving of electric weight.
Description of drawings
Fig. 1 is the structure chart of Mobitex modulator-demodulator of the present utility model and main frame; And
Fig. 2 is the RF power control circuit figure of power control circuit of the present utility model.
Embodiment
Below, be that example illustrates the utility model with Mobitex (wireless data communication technology of Ericsson's exploitation) modulator-demodulator.
As shown in Figure 1, Mobitex modulator-demodulator 1 of the present utility model is connected on the main frame 2.Mobitex modulator-demodulator 1 comprises an antenna 11, a TX/RX (transmission/reception) circuit 12, a power control circuit 14, a modulation-demodulation circuit 13, a MCU (microprogram control unit) 15, a memory 16 and a host interface 17.Main frame 2 comprises a modem interface 21, a MCU24, a keyboard 22, a display 23 and a memory 25.By being connected between host interface 17 and the modem interface 21, carry out the transmission of data and signal between Mobitex modulator-demodulator 1 and the main frame 2.
The MCU 15 of Mobitex modulator-demodulator 1 links to each other with power control circuit 14, memory 16, modulation-demodulation circuit 13 and host interface 17.Modulation-demodulation circuit 13 is connected between MCU15 and the TX/RX circuit 12, is used for the modulating/demodulating signal.Power control circuit 14 is connected to TX/RX circuit 12 and MCU 15.The instruction that this power control circuit 14 receives from MCU 15, and power control signal is sent to TX/RX circuit 12 corresponding to this instruction.
In more detail, MCU15 detects the signal that once it received every predetermined T cycle time.For example, T can be 10 minutes.And MCU15 sends first instruction according to the result of this detection.This first instruction is used to control the state whether whole TX/RX circuit 12 is in out.When MCU15 does not detect active data grouping address, the intensity that perhaps detects the data-signal of this reception not have to surpass a predetermined value, and first instruction that MCU15 sends is a low level.When the intensity that detects the data-signal of active data grouping address and reception as MCU15 surpassed a predetermined value, first instruction that MCU15 sends was high level.In addition, MCU15 sends second instruction and the 3rd instruction according to user's demand.Wherein, second instruction and the 3rd instruction are respectively applied for the state whether transtation mission circuit and receiving circuit are in out of controlling.When the user need send data, second instruction was high level, otherwise is in low level.When the user need receive data, the 3rd instruction was high level, otherwise is in low level.Power control circuit 14 according to this first, second and the 3rd instruction produce the power control signal of TX/RX circuit.
This power control circuit 14 comprises a RF power control circuit 30.An example of the circuit structure of this RF power control circuit 30 as shown in Figure 2.RF power control circuit 30 comprises a voltage-regulation chip 31 and a mains switch chip 32.Voltage-regulation chip 31 is used to regulate supply voltage.Voltage-regulation chip 31 has six pins, and one of them pin connects the PD port, and a pin connects the VL port of powering to RF power control circuit 30, and a pin links to each other with mains switch chip 32, other pin ground connection.When the incoming level of PD port was high level, the pin that is connected with mains switch chip 32 was output as high level.And when the incoming level of PD port was low level, the pin that is connected with mains switch chip 32 was output as low level.Line between a voltage-regulation chip 31 and the mains switch chip 32 stretches out a port VOSC, and this port is used for to the oscillator of TX/RX circuit (figure does not show) power supply.
Import the PD port of RF power control circuit 30 from first instruction of MCU 15.Import the TXEN and the RXEN port of RF power control circuit 30 respectively from the second and the 3rd instruction of MCU 15.
When if the level of PD port is low level, the level of VOSC port becomes low level.At this moment, no matter RXEN and TXEN input is high level or low level, the output level of VRX and VTX port is all low level, thereby makes the power supply of transtation mission circuit and receiving circuit be in resting state.When if the level of PD port is high level, the level of VOSC port is for uprising level.At this moment, if when the level of PD port and RXEN port is high level simultaneously, VRX port output high level, and VTX port output low level, thereby with the power supply opening of receiving circuit, and make the power supply of transtation mission circuit be in resting state; When if the level of PD port and TXEN port is high level simultaneously, VTX port output high level, and VRX port output low level, thereby with the power supply opening of transtation mission circuit, and make the power supply of receiving circuit be in resting state.
For the person of ordinary skill of the art, other advantage and modification all are conspicuous.So, the embodiment that the utility model not merely is defined in the specification to be put down in writing.Therefore, any disengaging by claim and its various changes that are equal to the spirit and scope of the present utility model that partly limit all can realize.
Claims (4)
1. transceiver with power control circuit, it comprises:
One MCU, it detects the intensity and the packet address of the data-signal that receives, and sends first instruction according to the result of this detection;
One power control circuit, it receives first instruction that MCU sends, and sends power control signal according to the instruction that receives; With
One transtation mission circuit and receiving circuit, it is according to opening/its power supply of dormancy from the power control signal of power control circuit.
2. transceiver as claimed in claim 1, wherein this power control circuit comprises a RF power control circuit, this RF control circuit comprises a voltage-regulation chip and a mains switch chip.
3. transceiver as claimed in claim 1, wherein this power control circuit is according to the oscillator in the first commands for controlling transtation mission circuit and the receiving circuit.
4. as any the described transceiver in the claim 1 to 3, wherein this transceiver is a modulator-demodulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200731102U CN2757434Y (en) | 2004-07-01 | 2004-07-01 | Transceiver with power control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2004200731102U CN2757434Y (en) | 2004-07-01 | 2004-07-01 | Transceiver with power control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2757434Y true CN2757434Y (en) | 2006-02-08 |
Family
ID=35965811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2004200731102U Expired - Lifetime CN2757434Y (en) | 2004-07-01 | 2004-07-01 | Transceiver with power control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2757434Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100444528C (en) * | 2004-07-01 | 2008-12-17 | 天宇通信集团有限公司 | Transmit-receiving device and power control circuit and power control method |
| WO2013044481A1 (en) * | 2011-09-29 | 2013-04-04 | Thomson Licensing | Method and apparatus for extending receiving dynamic range of rf transceiver in tdd system |
-
2004
- 2004-07-01 CN CNU2004200731102U patent/CN2757434Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100444528C (en) * | 2004-07-01 | 2008-12-17 | 天宇通信集团有限公司 | Transmit-receiving device and power control circuit and power control method |
| WO2013044481A1 (en) * | 2011-09-29 | 2013-04-04 | Thomson Licensing | Method and apparatus for extending receiving dynamic range of rf transceiver in tdd system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140701 Granted publication date: 20060208 |