1. A mounting assembly and a mixer connected to the mounting assembly for a bulk container having a neck with a lip, comprising:
a. a rigid lip mount positioned entirely above said lip, said lip mount defining an aperture shaped to engage a housing for a shaft; said lip mount having an underside, said underside having padding at the edge of said lip mount, said padding positioned entirely below said lip mount;
b. a cover for the container, said cover shaped to secure said lip mount to the lip by engaging with the neck, said cover defining an aperture shaped to engage said housing;
wherein said mixer comprises said shaft with said housing, a motor and an impeller, said motor supported by said cover and said lip mount.
2. The mounting assembly of claim 1 wherein said lip mount is disc shaped.
3. The mounting assembly of claim 2 wherein said lip mount is made of metal.
4. The mounting assembly of claim 3 wherein said padding comprises a gasket shaped to support said lip mount on top of said lip.
5. The mounting assembly of claim 1 wherein said lip mount and said housing are secured as one piece.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A high frequency switch comprising:
a signal input terminal;
first and second signal output terminals;
a control terminal to which a control voltage is applied;
a switch provided with: (1) a first switch element having first and second signal electrodes and a first control electrode, said signal input terminal being connected to the first signal electrode, said first signal output terminal being connected to the second signal electrode, and said control terminal being connected to any one of the first and second signal electrodes, and (2) a second switch element having third and fourth signal electrodes and a second control electrode, said signal input terminal being connected to the third signal electrode, said second signal output terminal being connected to the fourth signal electrode, and said control terminal being connected to the second control electrode; and
a reference voltage generation circuit that generates first and second reference voltages, the values of which are different from each other, provides said first reference voltage to the first control electrode, and provides said second reference voltage to any one of the third and fourth signal electrodes of said second switch element, wherein:
on the basis of the relation between said control voltage and said first reference voltage and the relation between said control voltage and said second reference voltage, depending on the value of the control voltage, said first and second switch elements are selectively made conductive,
said first switch element is composed of a first field effect transistor in which any one of the source electrode and the drain electrode serves as said first signal electrode, the other one of the source electrode and the drain electrode serves as said second signal electrode, and the gate electrode serves as said first control electrode,
said second switch element is composed of a second field effect transistor in which any one of the source electrode and the drain electrode serves as said third signal electrode, the other one of the source electrode and the drain electrode serves as said fourth signal electrode, and the gate electrode serves as said second control electrode, and
the difference between said first reference voltage and said second reference voltage equals approximately to the threshold value of said first and second field effect transistors.
2. A high frequency switch according to claim 1, wherein said second reference voltage is higher than said first reference voltage.
3. A high frequency switch according to claim 1, wherein said reference voltage generation circuit comprises a serial circuit of three or more resistors.
4. A high frequency switch according to claim 1, wherein:
the gate electrode of said first field effect transistor and an output terminal of said reference voltage generation circuit are interconnected through a first resistor; and
the gate electrode of said second field effect transistor and said control terminal are connected through a second resistor.
5. An amplifying circuit comprising:
a signal input terminal;
first and second signal output terminals;
a control terminal to which a control voltage is applied;
a switch provided with: (1) a first switch element having first and second signal electrodes and a first control electrode, said signal input terminal being connected to the first signal electrode and said control terminal being connected to any one of the first and second signal electrodes and (2) a second switch element having third and fourth signal electrodes and a second control electrode, said signal input terminal being connected to the third signal electrode and said control terminal being connected to the second control electrode;
a first amplifier having an input terminal connected to the second signal electrode and an output terminal connected to said first signal output terminal;
a second amplifier having an input terminal connected to the fourth signal electrode and an output terminal connected to said second signal output terminal; and
a reference voltage generation circuit that generates first and second reference voltages, provides said first reference voltage to the first control electrode, and provides said second reference voltage to any one of the third and fourth signal electrodes of said second switch element, wherein:
on the basis of the relation between said control voltage and said first reference voltage and the relation between said control voltage and said second reference voltage, depending on the value of the control voltage, said first and second switch elements are selectively made conductive,
when said first switch element is conductive, said first amplifier is made active while said second amplifier is made inactive;
when said second switch element is conductive, said first amplifier is made inactive while said second amplifier is made active,
said first switch element is composed of a first field effect transistor in which any one of the source electrode and the drain electrode serves as said first signal electrode, the other one of the source electrode and the drain electrode serves as said second signal electrode, and the gate electrode serves as said first control electrode,
said second switch element is composed of a second field effect transistor in which any one of the source electrode and the drain electrode serves as said third signal electrode, the other one of the source electrode and the drain electrode serves as said fourth signal electrode, and the gate electrode serves as said second control electrode,
said first amplifier is composed of a third field effect transistor or a first bipolar transistor in which the gate electrode or the base electrode serves as the input terminal of the first amplifier, the drain electrode or the collector electrode serves as the output terminal of the first amplifier, and the source electrode or the emitter electrode is grounded in the sense of high frequency, and
said second amplifier is composed of a fourth field effect transistor or a second bipolar transistor in which the gate electrode or the base electrode serves as the input terminal of the second amplifier, the drain electrode or the collector electrode serves as the output terminal of the second amplifier, and the source electrode or the emitter electrode is grounded in the sense of high frequency.
6. An amplifying circuit according to claim 5, wherein said second reference voltage is higher than said first reference voltage.
7. An amplifying circuit according to claim 5, wherein the difference between said first reference voltage and said second reference voltage equals approximately to the threshold value of said first and second field effect transistors.
8. An amplifying circuit according to claim 5, wherein said reference voltage generation circuit comprises a serial circuit of three or more resistors.
9. An amplifying circuit according to claim 5, wherein said control terminal and any one of the power supply terminals of said first and second amplifiers are connected in common.
10. An amplifying circuit according to claim 5, further comprising:
a third amplifier an output terminal of which is connected to said signal input terminal, wherein:
a signal inputted to an input terminal of said third amplifier is amplified and then provided to said signal input terminal, and
a power supply terminal of said third amplifier is connected in common with a power supply terminal of said reference voltage generation circuit.
11. An amplifying circuit comprising:
a signal input terminal;
first and second signal output terminals;
a control terminal to which a control voltage is applied;
a switch provided with: (1) a first switch element having first and second signal electrodes and a first control electrode, said signal input terminal being connected to the first signal electrode, said first signal output terminal being connected to the second signal electrode, and said control terminal being connected to any one of the first and second signal electrodes and (2) a second switch element having third and fourth signal electrodes and a second control electrode, said signal input terminal being connected to the third signal electrode, said second signal output terminal being connected to the fourth signal electrode, and said control terminal being connected to the second control electrode;
a reference voltage generation circuit for generating first and second reference voltages the values of which are different from each other, providing said first reference voltage to the first control electrode of said first switch element, and providing said second reference voltage to any one of the third and the fourth signal electrodes of said second switch element; and
an amplifier an output terminal of which is connected to said signal input terminal; wherein:
on the basis of the relation between said control voltage and said first reference voltage and the relation between said control voltage and said second reference voltage, depending on the value of the control voltage, said first and second switch elements are selectively made conductive,
a signal inputted to an input terminal of said amplifier is amplified and then provided to said signal input terminal; and
a power supply terminal of said amplifier is connected in common with a power supply terminal of said reference voltage generation circuit.
12. A mobile communication terminal comprising a high frequency switch having the function of selecting the path of a high frequency signal, said high frequency switch comprising:
a signal input terminal;
first and second signal output terminals;
a control terminal to which a control voltage is applied;
a switch provided with: (1) a first switch element having first and second signal electrodes and a first control electrode, said signal input terminal being connected to the first signal electrode, said first signal output terminal being connected to the second signal electrode, and said control terminal being connected to any one of the first and second signal electrodes and (2) a second switch element having third and fourth signal electrodes and a second control electrode, said signal input terminal being connected to the third signal electrode, said second signal output terminal being connected to the fourth signal electrode, and said control terminal being connected to the second control electrode; and
a reference voltage generation circuit for generating first and second reference voltages the values of which are different from each other, providing said first reference voltage to the first control electrode of said first switch element, and providing said second reference voltage to any one of the third and fourth signal electrodes of said second switch element; wherein:
on the basis of the relation between said control voltage and said first reference voltage and the relation between said control voltage and said second reference voltage, depending on the value of the control voltage, said first and second switch elements are selectively made conductive,
said first switch element is composed of a first field effect transistor in which any one of the source electrode and the drain electrode serves as said first signal electrode, the other one of the source electrode and the drain electrode serves as said second signal electrode, and the gate electrode serves as said first control electrode,
said second switch element is composed of a second field effect transistor in which any one of the source electrode and the drain electrode serves as said third signal electrode, the other one of the source electrode and the drain electrode serves as said fourth signal electrode, and the gate electrode serves as said second control electrode, and
the difference between said first reference voltage and said second reference voltage equals approximately to the threshold value of said first and second field effect transistors.
13. A mobile communication terminal comprising an amplifying circuit having the function of selecting the path of a high frequency signal, said amplifying circuit comprising:
a signal input terminal;
first and second signal output terminals;
a control terminal to which a control voltage is applied;
a switch provided with: (1) a first switch element having first and second signal electrodes and a first control electrode, said signal input terminal being connected to the first signal electrode, and said control terminal being connected to any one of the first and second signal electrodes and (2) a second switch element having third and fourth signal electrodes and a second control electrode, said signal input terminal being connected to the third signal electrode, and said control terminal being connected to the second control electrode;
a first amplifier having an input terminal connected to the second signal electrode of said first switch element and an output terminal connected to said first signal output terminal;
a second amplifier having an input terminal connected to the fourth signal electrode of said second switch element and an output terminal connected to said second signal output terminal; and
a reference voltage generation circuit for generating first and second reference voltages, providing said first reference voltage to the first control electrode of said first switch element, and providing said second reference voltage to any one of the third and fourth signal electrodes of said second switch element; wherein:
on the basis of the relation between said control voltage and said first reference voltage and the relation between said control voltage and said second reference voltage, depending on the value of the control voltage, said first and second switch elements are selectively made conductive,
when said first switch element is conductive, said first amplifier is made active while said second amplifier is made inactive; and when said second switch element is conductive, said first amplifier is made inactive while said second amplifier is made active,
said first switch element is composed of a first field effect transistor in which any one of the source electrode and the drain electrode serves as said first signal electrode, the other one of the source electrode and the drain electrode serves as said second signal electrode, and the gate electrode serves as said first control electrode,
said second switch element is composed of a second field effect transistor in which any one of the source electrode and the drain electrode serves as said third signal electrode, the other one of the source electrode and the drain electrode serves as said fourth signal electrode, and the gate electrode serves as said second control electrode,
said first amplifier is composed of a third field effect transistor or a first bipolar transistor in which the gate electrode or the base electrode serves as the input terminal of the first amplifier, the drain electrode or the collector electrode serves as the output terminal of the first amplifier, and the source electrode or the emitter electrode is grounded in the sense of high frequency, and
said second amplifier is composed of a fourth field effect transistor or a second bipolar transistor in which the gate electrode or the base electrode serves as the input terminal of the second amplifier, the drain electrode or the collector electrode serves as the output terminal of the second amplifier, and the source electrode or the emitter electrode is grounded in the sense of high frequency.
14. A mobile communication terminal comprising an amplifying circuit having the function of selecting the path of a high frequency signal,
said amplifying circuit comprising:
a signal input terminal;
first and second signal output terminals;
a control terminal to which a control voltage is applied;
a switch provided with: (1) a first switch element having first and second signal electrodes and a first control electrode, said signal input terminal being connected to the first signal electrode, said first signal output terminal being connected to the second signal electrode, and said control terminal being connected to any one of the first and second signal electrodes and (2) a second switch element having third and fourth signal electrodes and a second control electrode, said signal input terminal being connected to the third signal electrode, said second signal output terminal being connected to the fourth signal electrode, and said control terminal being connected to the second control electrode;
a reference voltage generation circuit for generating first and second reference voltages the values of which are different from each other, providing said first reference voltage to the first control electrode of said first switch element, and providing said second reference voltage to any one of the third and fourth signal electrodes of said second switch element; and
an amplifier an output terminal of which is connected to said signal input terminal; wherein:
on the basis of the relation between said control voltage and said first reference voltage and the relation between said control voltage and said second reference voltage, depending on the value of the control voltage, said first and second switch elements are selectively made conductive,
a signal inputted to an input terminal of said amplifier is amplified and then provided to said signal input terminal; and
a power supply terminal of said amplifier is connected in common with a power supply terminal of said reference voltage generation circuit.