Linear controllable resistor with gradually reducing impedance, electronic circuit and large UPS
A resistor and linear technology, applied in the field of electricity, can solve the problems of high cost of resistors, difficulty in using high-power circuits, complex and fragile results, etc., and achieve the effect of long life of contacts, not easy to burn out, and long service life
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Embodiment 1
[0035] Implementation example 1, such as Figure 1-2 As shown, a linear controllable resistor with gradually decreasing impedance includes an insulating container G11, a conductive liquid G31, a floating body G21, a bottom electrode G51, an upper electrode R11, a resistance layer R1, an electromagnetic coil G41, and the first node O+ of the controlled path , the second node O- of the controlled path, the first node P+ of the control end, and the second node P- of the control end;
[0036] The insulating container G11 has a stable shape. The shape of the insulating container G11 is cylindrical, and the container of the insulating container G11 is cylindrical.
[0037] The conductive liquid G31 is contained in the cavity of the insulating container G11, the volume of the conductive liquid G31 is smaller than the volume of the insulating container G11, and the volume of the conductive liquid G31 is larger than half of the volume of the insulating container G11;
[0038] The elec...
Embodiment 2
[0048] Implementation Example 2: A modification is made on the basis of implementation example 1, so that a tilt switch K1 is connected in series between the bottom electrode G51 and the second node O- of the controlled channel to prevent the resistor from being used when it is placed incorrectly.
Embodiment 3
[0049]Embodiment 3. A large-scale UPS power supply has the linear controllable resistor with decreasing impedance described in Embodiment 1.
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