Millimeter wave-based switching converter and electronic equipment

Abstract

The utility model discloses a millimeter wave-based switching converter and electronic equipment. The millimeter wave-based switching converter comprises an input sampling circuit, a comparator, a power control circuit, a digital control circuit and a USB protocol controller, the system also comprises a millimeter wave transceiver module. The output end of the input sampling circuit is connected with the input end of the comparator; the output end of the comparator is connected with one end of the millimeter wave transceiver module; the other end of the millimeter wave transceiver module is connected with the input end of the power control circuit; the output end of the power control circuit is connected with the input end of the digital control circuit; the output end of the digital control circuit is connected with the input end of the USB protocol controller; in the switching converter, self-adaptive conversion of a power supply is realized based on the millimeter wave transceiver module, compared with a traditional optical coupler control circuit, the number of elements and the occupied area of a PCB (Printed Circuit Board) can be reduced, and the millimeter wave transceiver module can be integrated in a single chip, so that the integration level is greatly improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of switch converters, in particular to a switch converter and electronic equipment based on millimeter waves. Background Art

[0002] Isolated switching converters are widely used in various offline power supply systems. Isolated switching converters usually include a primary side circuit and a secondary side circuit. By controlling the on and off of the power switch in the primary side circuit, a constant voltage or a constant current is output in the secondary side circuit.

[0003] However, due to the different power environments in different countries and regions around the world, there are also differences in civil voltages, and the voltage application ranges of electrical appliances in different countries are also different. The voltage application ranges of electrical appliances in different countries are generally divided into two types, one is low voltage, such as 100VAC, 110~130VAC; the other is high voltage, such as 220~240VAC. For the same power supply with the same power, different input voltages will generate different heat. Different voltages (different countries) must be distinguished during sales, so the product categories increase, which is inconvenient to manage. Therefore, it is necessary to be able to achieve adaptive power conversion to alleviate the above inconvenience.

[0004] In the existing technical solutions, in order to realize the adaptive conversion of the power supply, it is necessary to add an additional optical coupler control circuit, but this increases the number of components, PCB area and equipment cost. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a millimeter-wave-based switching converter and electronic equipment, which can reduce the number of components of the switching converter, reduce the size of the device, and reduce the cost of the equipment.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is:

[0007] A millimeter-wave based switching converter includes an input sampling circuit, a comparator, a power control circuit, a digital control circuit and a USB protocol controller;

[0008] It also includes a millimeter wave transceiver module;

[0009] The output end of the input sampling circuit is connected to the input end of the comparator;

[0010] The output end of the comparator is connected to one end of the millimeter wave transceiver module;

[0011] The other end of the millimeter wave transceiver module is connected to the input end of the power control circuit;

[0012] The output end of the power control circuit is connected to the input end of the digital control circuit;

[0013] The output end of the digital control circuit is connected to the input end of the USB protocol controller.

[0014] Further, the millimeter wave transceiver module includes a first transceiver module and a second transceiver module;

[0015] The first transceiver module and the second transceiver module communicate via millimeter waves;

[0016] The output end of the comparator is connected to the first transceiver module;

[0017] The second transceiver module is connected to the input end of the power control circuit.

[0018] Furthermore, the output end of the USB protocol controller includes a plurality of constant voltage output ports.

[0019] Furthermore, it also includes a Type-C interface module;

[0020] The output end of the USB protocol controller is connected to the input end of the Type-C interface module.

[0021] Furthermore, it also includes a rectifier circuit;

[0022] The output end of the rectifier circuit is connected to the input end of the input sampling circuit.

[0023] Further, the rectifier circuit includes a first diode, a second diode, a third diode and a fourth diode;

[0024] The cathode of the first diode is connected to the anode of the second diode;

[0025] The cathode of the second diode is connected to the cathode of the third diode and the input end of the input sampling circuit respectively;

[0026] The anode of the fourth diode is connected to the anode of the first diode;

[0027] The cathode of the fourth diode is connected to the anode of the third diode.

[0028] In order to solve the above technical problems, another technical solution adopted by the utility model is:

[0029] An electronic device comprises the above-mentioned millimeter-wave based switching converter.

[0030] The beneficial effects of the utility model are as follows: in a switching converter, adaptive power conversion is achieved based on a millimeter-wave transceiver module, which can reduce the number of components and PCB footprint compared to a traditional optocoupler control circuit, and the millimeter-wave transceiver module can be integrated into a single chip, greatly improving integration and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 The figure is a schematic structural diagram of a millimeter-wave-based switching converter according to an embodiment of the utility model. DETAILED DESCRIPTION

[0032] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0033] In an alternative embodiment, please refer to Figure 1 , a millimeter-wave based switching converter, comprising an input sampling circuit, a comparator, a power control circuit, a digital control circuit and a USB protocol controller;

[0034] It also includes a millimeter wave transceiver module;

[0035] The output end of the input sampling circuit is connected to the input end of the comparator;

[0036] The output end of the comparator is connected to one end of the millimeter wave transceiver module;

[0037] The other end of the millimeter wave transceiver module is connected to the input end of the power control circuit;

[0038] The output end of the power control circuit is connected to the input end of the digital control circuit;

[0039] The output end of the digital control circuit is connected to the input end of the USB protocol controller.

[0040] Wherein, the millimeter wave transceiver module includes a first transceiver module and a second transceiver module;

[0041] The first transceiver module and the second transceiver module communicate via millimeter waves;

[0042] The output end of the comparator is connected to the first transceiver module;

[0043] The second transceiver module is connected to the input end of the power control circuit.

[0044] In another optional implementation, the output end of the USB protocol controller includes a plurality of constant voltage output ports; and also includes a Type-C interface module;

[0045] The output end of the USB protocol controller is connected to the input end of the Type-C interface module.

[0046] The implementation principle of the above implementation is as follows:

[0047] The voltage is input from HV, passes through the input sampling circuit, and the output sampling voltage Vfb1 is compared with the reference voltage Vref. The comparator CMP outputs the Vis signal, which is transmitted through the millimeter-wave transmitter (TX) on the primary side. Then the millimeter-wave receiver (RX) on the secondary side receives the signal from the millimeter-wave transmitter (TX). The signal Vos of the millimeter-wave receiver is input to the power control circuit, and the power control circuit controls the output power through Vout.

[0048] In another optional embodiment, it also includes a rectifier circuit;

[0049] The output end of the rectifier circuit is connected to the input end of the input sampling circuit;

[0050] Specifically, the rectifier circuit includes a first diode, a second diode, a third diode and a fourth diode;

[0051] The cathode of the first diode is connected to the anode of the second diode;

[0052] The cathode of the second diode is connected to the cathode of the third diode and the input end of the input sampling circuit respectively;

[0053] The anode of the fourth diode is connected to the anode of the first diode;

[0054] The cathode of the fourth diode is connected to the anode of the third diode.

[0055] In another optional embodiment, an electronic device includes a millimeter-wave based switching converter as described in any one of the above embodiments.

[0056] In summary, the utility model provides a millimeter-wave-based switching converter and electronic device. In the switching converter, adaptive power conversion is achieved based on the millimeter-wave transceiver module. Compared with the traditional optocoupler control circuit, the number of components and the PCB footprint can be reduced, and the millimeter-wave transceiver module can be integrated in a single chip, which greatly improves the integration and reduces the cost.

[0057] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A millimeter wave based switching converter, characterized in that: It includes an input sampling circuit, a comparator, a power control circuit, a digital control circuit and a USB protocol controller; It also includes a millimeter wave transceiver module; The output end of the input sampling circuit is connected to the input end of the comparator; The output end of the comparator is connected to one end of the millimeter wave transceiver module; The other end of the millimeter wave transceiver module is connected to the input end of the power control circuit; The output end of the power control circuit is connected to the input end of the digital control circuit; The output end of the digital control circuit is connected to the input end of the USB protocol controller.

2. A millimeter wave based switching converter according to claim 1, characterized in that: The millimeter wave transceiver module includes a first transceiver module and a second transceiver module; The first transceiver module and the second transceiver module communicate via millimeter waves; The output end of the comparator is connected to the first transceiver module; The second transceiver module is connected to the input end of the power control circuit.

3. A millimeter wave based switching converter according to claim 1 or 2, characterized in that: The output end of the USB protocol controller includes a plurality of constant voltage output ports.

4. The millimeter wave based switching converter according to claim 3, characterized in that: It also includes a Type-C interface module; The output end of the USB protocol controller is connected to the input end of the Type-C interface module.

5. A millimeter wave based switching converter according to claim 1 or 2, characterized in that: Also includes a rectifier circuit; The output end of the rectifier circuit is connected to the input end of the input sampling circuit.

6. The millimeter-wave based switching converter according to claim 5, characterized in that: The rectifier circuit includes a first diode, a second diode, a third diode and a fourth diode; The cathode of the first diode is connected to the anode of the second diode; The cathode of the second diode is connected to the cathode of the third diode and the input end of the input sampling circuit respectively; The anode of the fourth diode is connected to the anode of the first diode; The cathode of the fourth diode is connected to the anode of the third diode.

7. An electronic device, characterized in that: It comprises a millimeter-wave based switching converter as claimed in any one of claims 1 to 6.

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