Hello,
I was hoping to get some guidance or even direction to sources of solution for this project. Before mocking up a circuit diagram I wanted to know if the concept I was thinking is even physical. I'm not an electric circuit engineer, so forgive for any blaring mistakes.
In short, I'm trying to drive a matrix of elements (like an LED display) with a limited number of power buses N. It's impractical to drive N elements with N buses, i.e. 1000 to 1,000,000 elements as that would require same amount of buses. The elements are somewhat like a diode however they take very little current (less than 1 microamp) and are mainly voltage driven. There are only two ports for each element.
I have an N amount of power buses that can provide -V to V Volts 24 bit (from DAC). I was thinking of laying out rows and columns with these N buses and creating a matrix of voltage nodes. The device would go between these voltage nodes.
Something very similar to the below (the right diagram);
The CS# would be V+ buses and SW# would be V- buses for example.
I've looked high and low but most solutions are tailored for LED displays (like the above picture). The requirement is to power all elements simultaneously with voltages much higher than that of LEDs, i.e. 20 to 40 V. Switches or multiplexing would not work as sequential activation of each element will cause a few problems. I've thought of using a capacitor to hold the charge of each element during sequencing, like active matrix, but this also causes problems.
The way I am approaching this problem is that we know exactly what voltages we want at the nodes, we just need to solve for the N buses. I was thinking of using the impedance matrix from power flow theory to solve for the voltage buses. If I had the correct impedance matrix, would I be able to solve for the correct voltage buses assuming I know what the current is?
Is there some sort of dot matrix driver that's meant to power systems, not LEDs? I'm hoping instead of using this method there may already be a solution out there that's in the form of an IC.
I was hoping to get some guidance or even direction to sources of solution for this project. Before mocking up a circuit diagram I wanted to know if the concept I was thinking is even physical. I'm not an electric circuit engineer, so forgive for any blaring mistakes.
In short, I'm trying to drive a matrix of elements (like an LED display) with a limited number of power buses N. It's impractical to drive N elements with N buses, i.e. 1000 to 1,000,000 elements as that would require same amount of buses. The elements are somewhat like a diode however they take very little current (less than 1 microamp) and are mainly voltage driven. There are only two ports for each element.
I have an N amount of power buses that can provide -V to V Volts 24 bit (from DAC). I was thinking of laying out rows and columns with these N buses and creating a matrix of voltage nodes. The device would go between these voltage nodes.
Something very similar to the below (the right diagram);
The CS# would be V+ buses and SW# would be V- buses for example.
I've looked high and low but most solutions are tailored for LED displays (like the above picture). The requirement is to power all elements simultaneously with voltages much higher than that of LEDs, i.e. 20 to 40 V. Switches or multiplexing would not work as sequential activation of each element will cause a few problems. I've thought of using a capacitor to hold the charge of each element during sequencing, like active matrix, but this also causes problems.
The way I am approaching this problem is that we know exactly what voltages we want at the nodes, we just need to solve for the N buses. I was thinking of using the impedance matrix from power flow theory to solve for the voltage buses. If I had the correct impedance matrix, would I be able to solve for the correct voltage buses assuming I know what the current is?
Is there some sort of dot matrix driver that's meant to power systems, not LEDs? I'm hoping instead of using this method there may already be a solution out there that's in the form of an IC.