Analog I2t Protection Circuit Reduces Complexity

The patent replaces complex, expensive electronic multipliers and integrators with a simple analog circuit consisting of basic operational amplifiers, resistors, and capacitors. This substitution uses inexpensive, readily available components to achieve the I2t trip characteristic without requiring precision electronic computation hardware, thereby reducing device complexity while maintaining functional accuracy.

The patent substitutes electronic computation (multiplication and integration operations) with an analog electrical circuit that naturally performs these mathematical operations through its physical behavior. The circuit uses operational amplifiers configured as integrators and a multiplier-like function achieved through analog voltage multiplication, replacing digital or complex electronic computation with straightforward analog circuitry.

The patent employs simple analog components with low power requirements instead of power-hungry electronic multipliers and integrators. The operational amplifiers, resistors, and capacitors consume minimal power compared to complex electronic computation hardware, thereby achieving the I2t trip characteristic with significantly reduced power consumption.

The patent replaces energy-intensive electronic computation with an analog circuit that performs mathematical operations through passive electrical components. The integrators use capacitors to accumulate charge proportional to the integral of squared current, and the multiplier function is achieved through analog voltage multiplication, both of which consume far less power than active electronic computation.

The patent uses compact analog components (operational amplifiers, resistors, capacitors) that occupy minimal space compared to complex electronic protection circuits. These simple components can be implemented on a small integrated circuit or discrete component layout, significantly reducing the physical size of the protection device while maintaining overcurrent protection functionality.

The patent replaces bulky electronic computation hardware with a compact analog circuit implementation. The integrators and multiplier function are achieved through carefully selected RC time constants and operational amplifier configurations that fit within a small footprint, eliminating the need for large electronic computation units.

The patent specifies the use of inexpensive, commercially available operational amplifiers, resistors, and capacitors instead of costly precision electronic multipliers and integrators. These standard components are mass-produced and readily available, significantly reducing the bill of materials cost while maintaining the required trip characteristic accuracy through proper circuit design.

The patent replaces expensive electronic computation hardware with a simple analog circuit that can be manufactured using standard PCB fabrication or integrated circuit processes. The analog implementation requires fewer precision components and allows for easier tolerance management, reducing manufacturing complexity and cost.