CN104779717A - Magnetic coupling resonant wireless power supply system for three-dimensional stacked chips and control method thereof - Google Patents
Magnetic coupling resonant wireless power supply system for three-dimensional stacked chips and control method thereof Download PDFInfo
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- CN104779717A CN104779717A CN201510210135.5A CN201510210135A CN104779717A CN 104779717 A CN104779717 A CN 104779717A CN 201510210135 A CN201510210135 A CN 201510210135A CN 104779717 A CN104779717 A CN 104779717A
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- power supply
- circuit
- frequency
- magnetic coupling
- control signal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
Abstract
The invention discloses a magnetic coupling resonant wireless power supply system for three-dimensional stacked chips and a control method thereof. The magnetic coupling resonant wireless power supply system is applied to the three-dimensional stacked chips and comprises a power supply, a frequency multiplier circuit, a resonant compensation capacitor, a transmitting inductor, a receiving inductor, a rectification and filtering circuit and a load. A control signal is provided in an off-chip mode. The frequency multiplier circuit on a master chip receives the control signal input in the off-chip mode, electric energy of the power supply is converted into sine-wave current through a primary side circuit of a magnetic coupling resonant circuit, the sine-wave current is transferred to a secondary side circuit, the frequency of the sine-wave current is N times of the frequency of the control signal, and the N represents frequency doubling multiple and is a natural number greater than 0. The rectification and filtering circuit rectifies the sine-wave current transferred by the magnetic coupling resonant circuit into half-sine-wave current and then filters the half-sine-wave current to obtain direct-current voltage, and the direct-current voltage is provided to sub-chips to serve as power supply voltage. By the adoption of the high-frequency wireless electric energy transmission, the requirements for inductance values and sizes of the on-chip inductors are decreased, and on-chip area is saved.
Description
Technical field
The invention belongs to integrated circuit (IC) design and encapsulation field, be specifically related to a kind of magnetic coupling resonance wireless power supply system for 3-D stacks chip and control method thereof.
Background technology
The development of integrated circuit production technology and integrated circuit (IC) design technology makes people can realize more function on same chip, even integrated whole system, i.e. system level chip (system-on-chip, SoC).In recent years, rapidly increase the requirement of System on Chip/SoC performance, add along with systems grow is complicated, make the design cost of System on Chip/SoC more and more higher, the design cycle is more and more longer.Above-mentioned reason impels 3-D stacks chip to be paid close attention to and study.3-D stacks chip (3D stacked ICs), is also stacked in an encapsulation (package) one by one by the method wear down of chip (die) by physics and chemistry.The distance of usual chip chamber is about tens microns.Meanwhile, new challenge is proposed to encapsulation.Conventional package based on metal wire pressure welding is both complicated, can affect again the performance of chip, and under comparing, the wireless interconnected of chip chamber has very large cost advantage.
Non-radiation type magnetic coupling resonance, as novel radio power supply technique, produces by making the resonant object of two same frequencys
Raw very strong intercoupling, and more weak coupling is only had to the receiving terminal of around disresonance frequence.Magnetic coupling resonator system comprises launches resonance coil, secondary reception resonance coil and load.
The Marin Soljacic assistant professor of MIT is the inventor of this system, and its MIT research group demonstrates wireless power, and they have successfully lighted 60W bulb from the distance of 2 meters.Magnetic coupling harmonic technology can realize the Energy Transfer of middle distance (mid-range), and do not need to strengthen magnetic field intensity, in the non-contact power mode of now widely used traditional electromagnetic induction type, power supply source and the power supply target as power receiver side need shared flux amount.Therefore, in order to transferring electric power effectively, need power supply source and power supply target to arrange very close to each other, the aligning be simultaneously coupled is also very important, and transmission range can only increase by strengthening magnetic field intensity.Another important advantage of magnetic resonance coupled system can penetrate various different non-metal barriers exactly simultaneously, and does not affect the index such as energy transmission efficiency, power of system.
When magnetic coupling harmonic technology is applied in integrated circuit wireless power field, owing to being integrated inductor on sheet, the capacitance of inductance value and parasitic capacitance is difficult to accurate control, makes the product being difficult to realize the former limit inductance value of magnetic coupling resonator system requirement and the capacitance of resonant capacitance equal the product of the inductance value of the receiving inductance of secondary and the parasitic capacitance of receiving inductance.And then cause the efficiency of whole wireless power supply system lower, and the chip area that inductance takies is large.
Summary of the invention
Technical problem to be solved by this invention is the performance for the wireless power supply system for 3-D stacks chip (3D stacked ICs) field related in background technology and the requirement of the chip area taken, and proposes the magnetic coupling resonance wireless power supply system and the control method thereof that are used for 3-D stacks chip.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
A kind of magnetic coupling resonance wireless power supply system for 3-D stacks chip comprises power supply, frequency multiplier circuit, resonance compensation electric capacity, emission inductance, accept inductance, rectification and filter circuit and load, the Same Name of Ends of described emission inductance is connected with one end of frequency multiplier circuit, the different name end of emission inductance is connected with one end of resonance compensation electric capacity, the described resonance compensation electric capacity other end is connected with frequency multiplier circuit, and other three ends of frequency multiplier circuit are connected with the positive pole of control signal, power supply, the negative pole of power supply respectively; The Same Name of Ends of described receiving inductance and the Same Name of Ends of emission inductance are in the same way; The input of receiving inductance two ends access current rectifying and wave filtering circuit, the output of current rectifying and wave filtering circuit is connected with load; Described frequency multiplier circuit comprises 2*N PMOS and 2*N NMOS tube, and wherein after N number of PMOS parallel connection, one end is connected with positive source, and the other end is connected with resonance compensation electric capacity; After N number of PMOS parallel connection, one end is connected with positive source, and the other end is connected with emission inductance Same Name of Ends; After N number of NMOS tube parallel connection, one end is connected with resonance compensation electric capacity, and the other end is connected with power cathode; After N number of NMOS tube parallel connection, one end is connected with emission inductance Same Name of Ends, and the other end is connected with power cathode.
Preferably, described magnetic coupling resonance wireless power supply system also comprises the control signal circuit for generating be connected with frequency multiplier circuit.
The control method of described magnetic coupling resonance wireless power supply system is:
Control signal provides by outside sheet; Frequency multiplier circuit on mother chip receives the control signal inputted by sheet outward, sine-wave current is become to be delivered to secondary circuit by former limit circuit conversion the electric energy of power supply, and sine-wave current frequency is N times of control signal, N is the frequency multiplication multiple of frequency multiplier circuit, N is natural number, N>0; The sine-wave current rectification of magnetic coupling resonant circuit transmission is sinusoidal half-wave current by described current rectifying and wave filtering circuit, then after filtering, obtains direct voltage be supplied to the supply power voltage of sub-chip as load.
Make whole wireless power supply system be operated in resonance condition by described resonance compensation electric capacity, the self-resonant frequency of receiving inductance and the parasitic capacitance of himself is not needed near system operating frequency, and then improve the power efficiency of wireless power.
System operating frequency f
2=N*f
1, wherein f
1be control signal frequency, N is frequency multiplication multiple, and N is natural number, N>0.
For obtaining system operating frequency f
2, frequency is the control signal Ai of f1, and the method for designing of Bi, Ei, Di is as follows, wherein i=1, and 2 ..., N: first, makes transistor M
a1with M
e1conducting 1/ (2*f
2) time, electric current is from M
a1flow through C1, L1 and flow to M
e1; Then, transistor M
b1with M
d1conducting 1/ (2*f
2) time, electric current is from M
b1flow through L1, C1 and flow to M
d1, the electric current on L1 and C1 commutates; Then, transistor M
a2with M
e2conducting 1/ (2*f
2) time, electric current is from M
a2flow through C1, L1 and flow to M
e2; Then, transistor M
b2with M
d2conducting 1/ (2*f
2) time, electric current is from M
b2flow through L1, C1 and flow to M
d2; In like manner making each group of PMOS and NMOS tube conducting, is finally transistor M
anwith M
enconducting 1/ (2*f
2) time, be then M
bnwith M
dnconducting 1/ (2*f
2) time; And be transistor M
a1with M
e1conducting 1/ (2*f
2) time, transistor M
b1with M
d1conducting 1/ (2*f
2) time, so circulate, then should have 1/f1=(1/ (2*f
2)) * 4, so f
2=2*f
1.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
Magnetic coupling resonance wireless power supply system of the present invention adopts high-frequency transmission electric energy, substantially reduces the chip area of transmitting and receiving shared by inductance.
Accompanying drawing explanation
Fig. 1 is a kind of magnetic coupling resonance wireless power supply system structural representation for 3-D stacks chip.
Fig. 2 is frequency multiplier circuit schematic diagram (N=2).
Fig. 3 is frequency multiplier circuit control signal oscillogram (N=2).
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Fig. 1, a kind of magnetic coupling resonance wireless power supply system for 3-D stacks chip comprises power supply, frequency multiplier circuit, resonance compensation electric capacity, emission inductance, accept inductance, rectification and filter circuit and load, the Same Name of Ends of described emission inductance is connected with one end of frequency multiplier circuit, the different name end of emission inductance is connected with one end of resonance compensation electric capacity, the described resonance compensation electric capacity other end is connected with frequency multiplier circuit, and other three ends of frequency multiplier circuit are connected with the positive pole of control signal, power supply, the negative pole of power supply respectively; The Same Name of Ends of described receiving inductance and the Same Name of Ends of emission inductance are in the same way; The input of receiving inductance two ends access current rectifying and wave filtering circuit, the output of current rectifying and wave filtering circuit is connected with load; Described frequency multiplier circuit comprises 2*N PMOS and 2*N NMOS tube, and wherein after N number of PMOS parallel connection, one end is connected with positive source, and the other end is connected with resonance compensation electric capacity; After N number of PMOS parallel connection, one end is connected with positive source, and the other end is connected with emission inductance Same Name of Ends; After N number of NMOS tube parallel connection, one end is connected with resonance compensation electric capacity, and the other end is connected with power cathode; After N number of NMOS tube parallel connection, one end is connected with emission inductance Same Name of Ends, and the other end is connected with power cathode.
The preferred embodiments of the present invention, radiating circuit by DC power supply, frequency multiplier circuit, emission inductance L1, resonance compensation electric capacity C1 are formed; Receiving circuit is the load on receiving inductance L2 and rectification circuit filter circuit and sub-chip, the parasitic capacitance of what C2 characterized is receiving inductance.
In another preferred embodiment of the invention, described magnetic coupling resonance wireless power supply system also comprises the control signal circuit for generating be connected with frequency multiplier circuit.
Frequency is that the control signal of f1 inputs to frequency multiplier circuit by outside sheet, it is that the alternating current of f2 exports from the output of frequency multiplier circuit that direct current energy is converted to frequency by frequency multiplier circuit, f2=N*f1, N is the frequency multiplication multiple of frequency multiplier circuit, and the resonance frequency of former edge emitting inductance and resonance building-out capacitor is f2; Receiving inductance L2 receives the energy of magnetic resonance transmission and is load DC electric energy after rectification circuit.Make whole wireless power supply system be operated in resonance condition by described resonance compensation electric capacity, the self-resonant frequency of receiving inductance and the parasitic capacitance of himself is not needed near system operating frequency, and then improve the power efficiency of wireless power.
As shown in Fig. 2, which show frequency multiplier circuit schematic diagram.For sake of convenience, frequency multiplier circuit schematic diagram during N=2 is only gived in Fig. 2.As shown in Figure 3, which show frequency multiplier circuit control signal oscillogram, Fig. 3 left side is the oscillogram of frequency multiplier circuit voltage Vab and control signal A1, E1, B1, D1, and the right is the oscillogram of Vab and control signal A2, E2, B2, D2.For obtaining system operating frequency f
2, frequency is the control signal A1 of f1, and A2, B1, B2, D1, D2, E1, E2 should design like this: first, makes transistor M
a1with M
e1conducting 1/ (2*f
2) time, electric current is from M
a1flow through C1, L1 and flow to M
e1; Then, transistor M
b1with M
d1conducting 1/ (2*f
2) time, electric current is from M
b1flow through L1, C1 and flow to M
d1, the electric current on L1 and C1 commutates; Then, transistor M
a2with M
e2conducting 1/ (2*f
2) time, electric current is from M
a2flow through C1, L1 and flow to M
e2; Then, transistor M
b2with M
d2conducting 1/ (2*f
2) time, electric current is from M
b2flow through L1, C1 and flow to M
d2; Then be again transistor M
a1with M
e1conducting 1/ (2*f
2) time, be then M
b1with M
d1conducting 1/ (2*f
2) time ... circulation like this.Then should there is 1/f1=(1/ (2*f
2)) * 4, so f
2=2*f
1.
Claims (6)
1. the magnetic coupling resonance wireless power supply system for 3-D stacks chip, it is characterized in that: comprise power supply, frequency multiplier circuit, resonance compensation electric capacity, emission inductance, accept inductance, rectification and filter circuit and load, the Same Name of Ends of described emission inductance is connected with one end of frequency multiplier circuit, the different name end of emission inductance is connected with one end of resonance compensation electric capacity, the described resonance compensation electric capacity other end is connected with frequency multiplier circuit, and other three ends of frequency multiplier circuit are connected with the positive pole of control signal, power supply, the negative pole of power supply respectively; The Same Name of Ends of described receiving inductance and the Same Name of Ends of emission inductance are in the same way; The input of receiving inductance two ends access current rectifying and wave filtering circuit, the output of current rectifying and wave filtering circuit is connected with load; Described frequency multiplier circuit comprises 2*N PMOS and 2*N NMOS tube, and wherein after N number of PMOS parallel connection, one end is connected with positive source, and the other end is connected with resonance compensation electric capacity; After N number of PMOS parallel connection, one end is connected with positive source, and the other end is connected with emission inductance Same Name of Ends; After N number of NMOS tube parallel connection, one end is connected with resonance compensation electric capacity, and the other end is connected with power cathode; After N number of NMOS tube parallel connection, one end is connected with emission inductance Same Name of Ends, and the other end is connected with power cathode.
2. as claimed in claim 1 for the magnetic coupling resonance wireless power supply system of 3-D stacks chip, characterized by further comprising control signal circuit for generating, described control signal circuit for generating provides control signal for described frequency multiplier circuit.
3. a control method for magnetic coupling resonance wireless power supply system as claimed in claim 1, is characterized in that:
Control signal provides by outside sheet; Frequency multiplier circuit on mother chip receives the control signal inputted by sheet outward, sine-wave current is become to be delivered to secondary circuit by former limit circuit conversion the electric energy of power supply, and sine-wave current frequency is N times of control signal, N is the frequency multiplication multiple of frequency multiplier circuit, N is natural number, N>0; The sine-wave current rectification of magnetic coupling resonant circuit transmission is sinusoidal half-wave current by described current rectifying and wave filtering circuit, then after filtering, obtains direct voltage be supplied to the supply power voltage of sub-chip as load.
4. the control method of magnetic coupling resonance wireless power supply system as claimed in claim 3, is characterized in that:
Make whole wireless power supply system be operated in resonance condition by described resonance compensation electric capacity, the self-resonant frequency of receiving inductance and the parasitic capacitance of himself is not needed near system operating frequency, and then improve the power efficiency of wireless power.
5. the control method of magnetic coupling resonance wireless power supply system as claimed in claim 3, is characterized in that: system operating frequency f
2=N*f
1, wherein f
1be control signal frequency, N is frequency multiplication multiple, and N is natural number, N>0.
6. the control method of magnetic coupling resonance wireless power supply system as claimed in claim 3, is characterized in that:
For obtaining system operating frequency f
2, frequency is the control signal Ai of f1, and the method for designing of Bi, Ei, Di is as follows, wherein i=1, and 2 ..., N: first, makes transistor M
a1with M
e1conducting 1/ (2*f
2) time, electric current is from M
a1flow through C1, L1 and flow to M
e1; Then, transistor M
b1with M
d1conducting 1/ (2*f
2) time, electric current is from M
b1flow through L1, C1 and flow to M
d1, the electric current on L1 and C1 commutates; Then, transistor M
a2with M
e2conducting 1/ (2*f
2) time, electric current is from M
a2flow through C1, L1 and flow to M
e2; Then, transistor M
b2with M
d2conducting 1/ (2*f
2) time, electric current is from M
b2flow through L1, C1 and flow to M
d2; In like manner making each group of PMOS and NMOS tube conducting, is finally transistor M
anwith M
enconducting 1/ (2*f
2) time, be then M
bnwith M
dnconducting 1/ (2*f
2) time; And be transistor M
a1with M
e1conducting 1/ (2*f
2) time, transistor M
b1with M
d1conducting 1/ (2*f
2) time, so circulate, then should have 1/f1=(1/ (2*f
2)) * 4, so f
2=2*f
1.
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|---|---|---|---|
| CN201510210135.5A CN104779717A (en) | 2015-04-29 | 2015-04-29 | Magnetic coupling resonant wireless power supply system for three-dimensional stacked chips and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510210135.5A CN104779717A (en) | 2015-04-29 | 2015-04-29 | Magnetic coupling resonant wireless power supply system for three-dimensional stacked chips and control method thereof |
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|---|---|
| CN104779717A true CN104779717A (en) | 2015-07-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048780A (en) * | 2019-05-23 | 2019-07-23 | 北京有感科技有限责任公司 | The component and its communication means and method of supplying power to of stacked package |
| WO2021073257A1 (en) * | 2019-10-18 | 2021-04-22 | 天津大学 | Multiplexer |
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| CN102857134A (en) * | 2012-10-09 | 2013-01-02 | 中国科学院电工研究所 | High-frequency inverter power supply of wireless power transmission device and frequency doubling control method for inverter power supply |
| CN103779973A (en) * | 2010-04-07 | 2014-05-07 | 松下电器产业株式会社 | Wireless power transmission system, and inductor used in wireless power transmission system |
| EP2747245A1 (en) * | 2011-09-21 | 2014-06-25 | Toyota Jidosha Kabushiki Kaisha | Contactless power transmission device, contactless power receiving device and contactless power transceiver system |
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2015
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779973A (en) * | 2010-04-07 | 2014-05-07 | 松下电器产业株式会社 | Wireless power transmission system, and inductor used in wireless power transmission system |
| EP2747245A1 (en) * | 2011-09-21 | 2014-06-25 | Toyota Jidosha Kabushiki Kaisha | Contactless power transmission device, contactless power receiving device and contactless power transceiver system |
| CN102857134A (en) * | 2012-10-09 | 2013-01-02 | 中国科学院电工研究所 | High-frequency inverter power supply of wireless power transmission device and frequency doubling control method for inverter power supply |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048780A (en) * | 2019-05-23 | 2019-07-23 | 北京有感科技有限责任公司 | The component and its communication means and method of supplying power to of stacked package |
| WO2021073257A1 (en) * | 2019-10-18 | 2021-04-22 | 天津大学 | Multiplexer |
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Application publication date: 20150715 |