CN117674540A - TR assembly power supply control circuit - Google Patents
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Abstract
The invention discloses a TR component power supply control circuit, which comprises a state monitoring circuit, a controller, a sequence control circuit and a power supply modulation circuit, wherein the state monitoring circuit is configured to output a feedback signal corresponding to a working state of a grid power supply to the controller according to the working state; the sequence control circuit is configured to output an operating power supply to the power supply modulation circuit according to the powered-on signal of the gate power supply; the controller is configured to send a control signal of the working power supply to the power supply modulation circuit according to a feedback signal corresponding to the powered state; the power supply modulation circuit is configured to time-share the operating power supply to the transmitting part or the receiving part of the TR assembly according to the control signal. The power-on sequence of the TR component power supply can be ensured to be accurate, and the working efficiency of the TR component is improved.
Description
Technical Field
The invention belongs to the technical field of power supply of TR (transmitter and receiver) components, and particularly relates to a power supply control circuit of a TR component.
Background
Phased array radar plays an important role in improving radar detection performance. In general, a phased array radar includes a plurality of TR (Transmitter and Receiver, transmit and receive) modules, each of which typically has a plurality of power supplies, and the power sequence (including the power sequence) of each power supply needs to meet a preset standard, which may affect the operating state of the TR module or even damage it. At present, the method mainly monitors the power-on sequence of each power supply by manpower, and has the problems of easy error and low efficiency.
Disclosure of Invention
The invention aims to solve the technical problems of easiness in error and low efficiency in manual monitoring of the power-on sequence of each power supply in the prior art, and provides a power supply control circuit for a TR (transmitter-receiver) component, which can improve the accuracy of the power-on sequence of each power supply of the TR component at least to a certain extent and improve the working efficiency of the TR component.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
in a first aspect, the invention provides a TR module power supply control circuit, the TR module comprises a transmitting part and a receiving part, the TR module power supply control circuit comprises a state monitoring circuit, a controller, a sequence control circuit and a power supply modulation circuit, the output end of the state monitoring circuit is connected with the input end of the controller, and the output end of the controller and the output end of the sequence control circuit are connected with the power supply modulation circuit;
the state monitoring circuit is configured to output a feedback signal corresponding to a working state of the grid power supply to the controller according to the working state, wherein the working state comprises a powered-on state and a non-powered-on state;
the sequence control circuit is configured to output a working power supply to the power supply modulation circuit according to the powered-on signal of the grid power supply;
the controller is configured to send a control signal of the operating power supply to the power supply modulation circuit according to a feedback signal corresponding to the powered state;
the power supply modulation circuit is configured to time-share the operating power supply to the transmitting part or the receiving part of the TR assembly according to the control signal.
In one possible design, the feedback signal includes a first level signal corresponding to the powered state and a second level signal corresponding to the unpowered state, the first level signal and the second level signal being different from each other.
In one possible design, the state monitoring circuit includes a first switching circuit and a level output circuit connected;
the first switching circuit is configured to switch to a first state according to a powered state of the gate power supply or to switch to a second state according to a non-powered state of the gate power supply;
the level output circuit is configured to output the first level signal when the first switching circuit is in a first state or to output the second level signal when the first switching circuit is in a second state.
In one possible design, the first switching circuit includes a first NPN transistor Q1;
the first NPN transistor Q1 is configured to switch to a conductive state according to a powered state of the gate power supply or to switch to a non-conductive state according to a non-powered state of the gate power supply.
In one possible design, the sequence control circuit includes a second switching circuit and a first power output circuit connected;
the second switching circuit is configured to switch to a first state according to a powered signal of the gate power supply or to switch to a second state according to a non-powered signal of the gate power supply;
the first power supply output circuit is configured to output the operating power supply to the power supply modulation circuit when the second switching circuit is in a first state.
In one possible design, the second switching circuit includes a second NPN transistor Q2, and the first power output circuit includes a first PMOS transistor;
the second NPN transistor Q2 is configured to switch to a conductive state according to a powered signal of the gate power supply or to switch to a non-conductive state according to a non-powered signal of the gate power supply;
and when the first PMOS tube is configured to be in a conducting state, the second NPN triode Q2 outputs the working power supply to the power supply modulation circuit.
In one possible design, the power supply modulation circuit includes a signal processing circuit and a second power supply output circuit connected;
the signal processing circuit is configured to output a trigger signal corresponding to the control signal to the second power supply output circuit according to the control signal;
the second power output circuit is configured to time-share the operating power to the transmitting or receiving part of the TR assembly according to the trigger signal.
In one possible design, the control signals include a first control signal and a second control signal, the trigger signals include a first trigger signal and a second trigger signal, the signal processing circuit includes a MOS driver, and the second power output circuit includes a second PMOS transistor and a third PMOS transistor;
the MOS driver is configured to send the first trigger signal to the second PMOS tube according to the first control signal or send the second trigger signal to the third PMOS tube according to the second control signal;
the second PMOS tube is configured to supply the working power supply to the transmitting part of the TR component according to the first trigger signal;
the third PMOS transistor is configured to supply the operating power to the receiver of the TR assembly according to the second trigger signal.
The one or more technical schemes provided by the invention at least realize the following technical effects or advantages:
the invention monitors the power-on state of the grid power supply through the state monitoring circuit and feeds the monitoring result back to the controller, the controller gives out a control signal of the working power supply according to the feedback signal, and the sequential control circuit outputs the working power supply to the power supply modulation circuit when the grid power supply is powered on, so that the power-on sequence of the grid power supply is ensured to accord with the preset sequence standard before the working power supply, the accuracy of the power-on sequence is ensured, and the power supply modulation circuit supplies the working power supply to the transmitting part or the receiving part of the TR assembly in a time-sharing manner according to the control signal, so that the mutual exclusion requirement that the transmitting part and the receiving part of the TR assembly are not simultaneously powered on is met, the accuracy of the power-on sequence is further ensured, and the working efficiency of the TR assembly is improved.
Drawings
Fig. 1 is a block diagram of the TR module power supply control circuit in the present embodiment;
FIG. 2 is a schematic circuit diagram of a status monitoring circuit according to an embodiment of the present application;
FIG. 3 is a schematic circuit diagram of a sequence control circuit according to an embodiment of the present application;
fig. 4 is a schematic circuit diagram of a power supply modulation circuit according to an embodiment of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present specification more clear, the technical solutions of the embodiments of the present specification will be clearly and completely described below with reference to the drawings in the embodiments of the present specification, and it is apparent that the described embodiments are some embodiments of the present specification, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are intended to be within the scope of the present invention based on the embodiments herein.
Examples
Firstly, it should be noted that, in general, the phased array radar includes a plurality of TR modules, that is, a plurality of TR modules form a TR module array, and the TR module is used as one of core components of the active phased array radar, and has strict requirements on the power-up sequence or the power-down sequence of each power supply, that is, a preset sequence standard is set, if the power-up sequence or the power-down sequence is incorrect, abnormal operation or even damage of the TR module may be caused, so that ensuring that the power-up sequence or the power-down sequence of each power supply is correct has important significance for ensuring normal operation of the TR module. The power supplies of the TR assembly include, but are not limited to, a gate power supply VG (Voltage Gate), a first operating power supply VDP (Device Power Voltage, device power supply Voltage), and a second operating power supply VEE (Emitter power supply Voltage), and according to the power supply sequence requirement of the TR assembly, the power supply sequence of the gate power supply VG should precede the first operating power supply VDP and the second operating power supply VEE, and the power supply sequence of the first operating power supply VDP and the second operating power supply VEE is not specifically limited.
Based on the foregoing, the embodiments of the present application provide a TR module power supply control circuit, which is used to ensure that the gate power supply VG must power up the TR module before the first operating power supply VDP and the second operating power supply VEE, and the principle thereof will be described in detail below.
Referring to fig. 1, a block diagram of a TR module power control circuit according to an embodiment of the present application is shown.
As shown in fig. 1, in a first aspect, the present invention provides a TR module power supply control circuit, where the TR module includes a transmitting element and a receiving element, the TR module power supply control circuit includes a state monitoring circuit, a controller, a sequence control circuit, and a power supply modulation circuit, an output end of the state monitoring circuit is connected to an input end of the controller, and an output end of the controller and an output end of the sequence control circuit are connected to the power supply modulation circuit;
the state monitoring circuit is configured to output a feedback signal corresponding to a working state of the grid power supply to the controller according to the working state, wherein the working state comprises a powered-on state and a non-powered-on state;
the sequence control circuit is configured to output a working power supply to the power supply modulation circuit according to the powered-on signal of the grid power supply;
the controller is configured to send a control signal of the operating power supply to the power supply modulation circuit according to a feedback signal corresponding to the powered state;
the power supply modulation circuit is configured to time-share the operating power supply to the transmitting part or the receiving part of the TR assembly according to the control signal.
It will be appreciated that when the operating power supply includes a first operating power supply VDP and a second operating power supply VEE, the sequence control circuit is substantially provided with two, one of the sequence control circuits is configured to output the first operating power supply VDP to the power supply modulating circuit according to the powered signal of the gate power supply, and the other of the sequence control circuits is configured to output the second operating power supply VEE to the power supply modulating circuit according to the powered signal of the gate power supply.
In some embodiments, the controller employs an FPGA (Field Programmable Gate Array ).
It should be noted that, the working principle of the TR module power supply control circuit in the embodiment of the present application specifically includes:
the working state of the grid power supply is used as an input signal of the state monitoring circuit, so that the state monitoring circuit generates a corresponding feedback signal according to the working state of the grid power supply and sends the corresponding feedback signal to the controller; in addition, by taking the power-on signal of the grid power supply and the working power supply as input signals of the sequence control circuit, when the sequence control circuit obtains the power-on signal of the grid power supply, the working power supply is output to the power supply modulation circuit; when the controller knows that the grid signal is powered up according to the feedback signal, namely, the grid signal is powered up to the TR assembly through the circuit board, the working state of the current transmission signal or the working state of the receiving signal of the TR assembly can be obtained through calculation according to the existing algorithm, and then the control signal of the working power supply is generated according to the current working signal of the TR assembly, and the control signal can guide the power supply modulating circuit to transmit the working power supply to the transmitting piece or the receiving piece of the TR assembly so as to meet the mutual exclusion requirement that the transmitting piece and the receiving piece of the TR assembly do not receive power at the same time, the accuracy of the power-up sequence is further ensured, and the working efficiency of the TR assembly is improved.
In one possible design, the feedback signal includes a first level signal corresponding to the powered state and a second level signal corresponding to the unpowered state, the first level signal and the second level signal being different from each other.
For example: the feedback signal includes a low level signal corresponding to the powered state and a high level signal corresponding to the unpowered state, although it will be understood that the level form of the feedback signal is not limited to the above examples and is not illustrated here.
Referring to fig. 2, a schematic circuit diagram of a condition monitoring circuit of an embodiment of the present application is shown.
As shown in fig. 2, in one possible design, the state monitoring circuit includes a first switching circuit and a level output circuit connected;
the first switching circuit is configured to switch to a first state according to a powered state of the gate power supply or to switch to a second state according to a non-powered state of the gate power supply;
the level output circuit is configured to output the first level signal when the first switching circuit is in a first state or to output the second level signal when the first switching circuit is in a second state.
In a specific embodiment, the first switching circuit includes a first NPN transistor Q1;
the first NPN transistor Q1 is configured to switch to a conductive state according to a powered state of the gate power supply or to switch to a non-conductive state according to a non-powered state of the gate power supply.
Specifically, the state monitoring circuit includes a first NPN transistor Q1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, and a first capacitor C1, where the first capacitor C1 may be a multilayer ceramic capacitor; the emitter of the first NPN triode Q1 is respectively connected with the first end of a second resistor R2 and the first end of a third resistor R3, the second end of the second resistor R2 is grounded with the base electrode of the first NPN triode Q1, the second end of the third resistor R3 is used for being connected with a grid power supply VG serving as a negative power supply, the grid power supply VG can be-5V, the collector of the first NPN triode Q1 is respectively connected with the first end of the first resistor R1, the first end of a fourth resistor R4 and the first end of a first capacitor C1, the second end of the first resistor R1 is connected with a working voltage VCC of 3.3V, the second end of the first capacitor C1 is grounded, and the second end of the fourth resistor R4 is connected with the controller.
It should be noted that the working principle of the state monitoring circuit is specifically as follows:
when the gate power supply VG is not powered on, the emitter of the first NPN transistor Q1 does not acquire power input, so that the first NPN transistor Q1 is not turned on, and the operating voltage VCC of 3.3V is output as a high level signal to the controller, so that the controller knows that the gate power supply VG is not powered on; conversely, when the gate power supply VG is powered on, the emitter of the first NPN transistor Q1 acquires the power input, so that the first NPN transistor Q1 is turned on, and the voltage of 0.1V is output to the controller as a low level signal, so that the controller knows that the gate power supply VG is powered on.
Referring to fig. 3, a schematic circuit diagram of a sequence control circuit of an embodiment of the present application is shown.
As shown in fig. 3, in one possible design, the sequence control circuit includes a second switching circuit and a first power output circuit connected;
the second switching circuit is configured to switch to a first state according to a powered signal of the gate power supply or to switch to a second state according to a non-powered signal of the gate power supply;
the first power supply output circuit is configured to output the operating power supply to the power supply modulation circuit when the second switching circuit is in a first state.
Since the TR module is powered up in such a manner that the power-up sequence of the gate power supply VG is required to precede the power-up sequence of the operating power supply VDP or VEE, the power-up state of the gate power supply is used to control the output of the operating power supply, so that the power-up sequence of the gate power supply VG can be ensured to precede the power-up sequence of the operating power supply.
In a specific embodiment, the second switching circuit includes a second NPN transistor Q2, and the first power output circuit includes a first PMOS transistor;
the second NPN transistor Q2 is configured to switch to a conductive state according to a powered signal of the gate power supply or to switch to a non-conductive state according to a non-powered signal of the gate power supply;
and when the first PMOS tube is configured to be in a conducting state, the second NPN triode Q2 outputs the working power supply to the power supply modulation circuit.
Specifically, the sequence control circuit includes a second NPN triode Q2, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a second capacitor C2, and a first PMOS tube U1, where the second capacitor C2 may be a multilayer ceramic capacitor. The emitter of the second NPN transistor Q2 is connected to the first end of the fifth resistor R5 and the first end of the sixth resistor R6, the fifth resistor R5 and the base of the second NPN transistor Q2 are grounded, the second end of the sixth resistor R6 is connected to the gate power source VG serving as a negative power source, the gate power source VG may be-5V, the collector of the second NPN transistor Q2 is connected to the first end of the seventh resistor R7 and the first end of the second capacitor C2, the second end of the seventh resistor R7 is connected to the first end of the first PMOS transistor U1 and is used for connecting an input of a working power source, the second end of the second capacitor C2 is grounded, the second end of the second NPN transistor Q2 is connected to the first end of the second capacitor C2 and the first end of the seventh resistor R7, and the third end of the second NPN transistor Q2 is used for outputting the working power source.
It should be noted that the working principle of the sequence control circuit is specifically as follows:
when the emitter of the second NPN transistor Q2 does not receive the power-on signal of the gate power supply VG, the emitter of the second NPN transistor Q2 does not acquire the power input, so that the second NPN transistor Q2 is not turned on, and further, the second end of the first PMOS transistor U1 is not turned on, and the third end of the first PMOS transistor U1 does not output the working power supply, whereas when the emitter of the second NPN transistor Q2 receives the power-on signal of the gate power supply VG, the emitter of the second NPN transistor Q2 acquires the power input, so that the second NPN transistor Q2 is turned on, and further, the second end of the first PMOS transistor U1 is turned on, and the third end of the first PMOS transistor U1 outputs the working power supply.
Referring to fig. 4, a circuit schematic of a power supply modulation circuit of an embodiment of the present application is shown.
As shown in fig. 4, in one possible design, the power supply modulation circuit includes a signal processing circuit and a second power supply output circuit connected;
the signal processing circuit is configured to output a trigger signal corresponding to the control signal to the second power supply output circuit according to the control signal;
the second power output circuit is configured to time-share the operating power to the transmitting or receiving part of the TR assembly according to the trigger signal.
It should be noted that, because the power-up time of the transceiver and the receiving element of the T/R assembly is time-sharing power-up, that is, when the transmitting element is powered up, the receiving element is not powered up, otherwise, when the receiving element is powered up, the transmitting element is not powered up, that is, the power-up time between the two has a mutual exclusion relationship. Based on this, the embodiment of the application obtains the control signal by providing the signal processing circuit, and generates the trigger signal according to the control signal, so as to trigger the sending part or the receiving part of the TR assembly to be supplied with the working power source in a time-sharing manner.
In a specific embodiment, the control signal includes a first control signal and a second control signal, the trigger signal includes a first trigger signal and a second trigger signal, the signal processing circuit includes a MOS driver, and the second power output circuit includes a second PMOS transistor and a third PMOS transistor;
the MOS driver is configured to send the first trigger signal to the second PMOS tube according to the first control signal or send the second trigger signal to the third PMOS tube according to the second control signal;
the second PMOS tube is configured to supply the working power supply to the transmitting part of the TR component according to the first trigger signal;
the third PMOS transistor is configured to supply the operating power to the receiver of the TR assembly according to the second trigger signal.
Specifically, the power supply modulation circuit includes a MOS driver U2, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a first diode D1, a second diode D2, a second PMOS transistor U3, and a third PMOS transistor U4. The first end of the MOS driver U2 is connected to the ninth resistor R9 and the tenth resistor R10, and then is connected to the 3.3V working voltage VCC, the second end of the MOS driver U2 is connected to the third end of the third capacitor C3, the fourth capacitor C4 and the first PMOS tube U1, the third end of the MOS driver U2 is connected to the first end of the second PMOS tube U3, the second end of the second PMOS tube U3 is connected to the eleventh resistor R11, the fifth capacitor C5 and the third end of the first PMOS tube U1, the fifth capacitor C5 is grounded, the third end of the second PMOS tube U3 is connected to the emitter of the TR component and the cathode of the first PMOS tube D1, the positive electrode of the first PMOS tube D1 is grounded, the fourth end of the MOS driver U2 is connected to the first end of the third PMOS tube U4, the second end of the third PMOS tube U4 is connected to the third end of the third PMOS tube U12, the third PMOS tube C6 and the third end of the third PMOS tube U1, and the cathode of the third PMOS tube D1 are connected to the positive electrode of the third PMOS tube D2.
It should be noted that the working principle of the power supply modulation circuit is specifically as follows:
the controller can send different control signals to the MOS driver through the reverser, for example, send a signal 1 to a pin 7 of the MOS driver and send a signal 0 to a pin 5 of the MOS driver, wherein the signal 1 has the function of triggering the second PMOS tube to output a working power supply to the transmitting element of the TR assembly, so that the second PMOS tube outputs the working power supply to the transmitting element of the TR assembly; similarly, when the signal 0 is sent to the pin 7 of the MOS driver and the signal 1 is sent to the pin 5 of the MOS driver, the signal 1 has the function of triggering the third PMOS tube to output the working power supply to the receiving element of the TR assembly, so that the third PMOS tube outputs the working power supply to the receiving element of the TR assembly
Based on the above disclosure, the embodiment of the application monitors the power-on state of the grid power supply through the state monitoring circuit, feeds back the monitoring result to the controller, gives a control signal of the working power supply according to the feedback signal, and the sequential control circuit outputs the working power supply to the power supply modulating circuit when the grid power supply is powered on, so that the power-on sequence of the grid power supply is ensured to meet the preset sequence standard before the working power supply, the accuracy of the power-on sequence is ensured, and the power supply modulating circuit supplies the working power supply to the transmitting part or the receiving part of the TR assembly in a time-sharing manner according to the control signal, so that the mutual exclusion requirement that the transmitting part and the receiving part of the TR assembly do not receive power at the same time is met, the accuracy of the power-on sequence is further ensured, and the working efficiency of the TR assembly is improved.
It is worth noting that the control circuit adopted in the embodiment of the application is suitable for all TR component chips requiring the power-on sequence of the grid power supply to be earlier than that of the working power supply, the circuit components are realized by adopting common discrete devices, and the hardware cost is low.
Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The power supply control circuit of the TR assembly comprises a transmitting part and a receiving part and is characterized by comprising a state monitoring circuit, a controller, a sequence control circuit and a power supply modulation circuit, wherein the output end of the state monitoring circuit is connected with the input end of the controller, and the output end of the controller and the output end of the sequence control circuit are connected with the power supply modulation circuit;
the state monitoring circuit is configured to output a feedback signal corresponding to a working state of the grid power supply to the controller according to the working state, wherein the working state comprises a powered-on state and a non-powered-on state;
the sequence control circuit is configured to output a working power supply to the power supply modulation circuit according to the powered-on signal of the grid power supply;
the controller is configured to send a control signal of the operating power supply to the power supply modulation circuit according to a feedback signal corresponding to the powered state;
the power supply modulation circuit is configured to time-share the operating power supply to the transmitting part or the receiving part of the TR assembly according to the control signal.
2. The TR assembly power control circuit of claim 1, wherein the feedback signal comprises a first level signal corresponding to the powered state and a second level signal corresponding to the unpowered state, the first level signal and the second level signal being different from each other.
3. The TR assembly power control circuit according to claim 2, wherein the state monitoring circuit comprises a first switching circuit and a level output circuit connected;
the first switching circuit is configured to switch to a first state according to a powered state of the gate power supply or to switch to a second state according to a non-powered state of the gate power supply;
the level output circuit is configured to output the first level signal when the first switching circuit is in a first state or to output the second level signal when the first switching circuit is in a second state.
4. The TR module power control circuit according to claim 3, wherein said first switching circuit comprises a first NPN transistor Q1;
the first NPN transistor Q1 is configured to switch to a conductive state according to a powered state of the gate power supply or to switch to a non-conductive state according to a non-powered state of the gate power supply.
5. The TR assembly power control circuit of claim 1, wherein said sequence control circuit comprises a second switching circuit and a first power output circuit connected;
the second switching circuit is configured to switch to a first state according to a powered signal of the gate power supply or to switch to a second state according to a non-powered signal of the gate power supply;
the first power supply output circuit is configured to output the operating power supply to the power supply modulation circuit when the second switching circuit is in a first state.
6. The TR module power control circuit according to claim 5, wherein the second switching circuit comprises a second NPN transistor Q2, and the first power output circuit comprises a first PMOS transistor;
the second NPN transistor Q2 is configured to switch to a conductive state according to a powered signal of the gate power supply or to switch to a non-conductive state according to a non-powered signal of the gate power supply;
and when the first PMOS tube is configured to be in a conducting state, the second NPN triode Q2 outputs the working power supply to the power supply modulation circuit.
7. The TR assembly power control circuit of claim 1, wherein said power modulation circuit comprises a signal processing circuit and a second power output circuit connected;
the signal processing circuit is configured to output a trigger signal corresponding to the control signal to the second power supply output circuit according to the control signal;
the second power output circuit is configured to time-share the operating power to the transmitting or receiving part of the TR assembly according to the trigger signal.
8. The TR assembly power control circuit of claim 7, wherein the control signal comprises a first control signal and a second control signal, the trigger signal comprises a first trigger signal and a second trigger signal, the signal processing circuit comprises a MOS driver, and the second power output circuit comprises a second PMOS transistor and a third PMOS transistor;
the MOS driver is configured to send the first trigger signal to the second PMOS tube according to the first control signal or send the second trigger signal to the third PMOS tube according to the second control signal;
the second PMOS tube is configured to supply the working power supply to the transmitting part of the TR component according to the first trigger signal;
the third PMOS transistor is configured to supply the operating power to the receiver of the TR assembly according to the second trigger signal.
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| CN202311364215.7A CN117674540A (en) | 2023-10-19 | 2023-10-19 | TR assembly power supply control circuit |
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| CN204044655U (en) * | 2014-08-21 | 2014-12-24 | 南京俊禄科技有限公司 | Marine radar power control |
| CN104536314A (en) * | 2014-12-04 | 2015-04-22 | 潍坊歌尔电子有限公司 | NFC-based startup control circuit, method and electronic device |
| CN109449915A (en) * | 2018-11-06 | 2019-03-08 | 上海航天电子通讯设备研究所 | Circuit is protected in built-in miniaturization suitable for the power-up out of order of TR component |
| CN111258259A (en) * | 2020-04-27 | 2020-06-09 | 浙江航芯源集成电路科技有限公司 | Multi-channel high-integration surface-mounted TR component control chip |
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