PSpice Application Notes

PSpice App Note_Using PSpice to Simulate the Discharge Behavior of Common Batteries

Issue link: https://resources.pcb.cadence.com/i/1480205

Contents of this Issue

Navigation

Page 7 of 15

APPLICATION NOTE 7 Table 1 Cell Parameters Cell Model Parameter Meaning LEAD-ACID CAPACITY Capacity of the battery measured at the 20 hour rate RESISTANCE Mid-discharge cell resistance in ohms CELLS The number of cells that make up the battery(6V = 3 cells, 12V = 6, etc.) Note: These parameters are only needed at a discharge rate greater than 5C to account for cell temperature rise. Since little standardization exists for rating methods between manufacturers, the popular typical parameters are summarized in Table 2 for the most common consumer batteries Table 2 Subcircuit Parameters for the Cell Models Cell Type Capacity(Amp-hour) Resistance(Ohms) Volume(in3) Weight(gm) Cell Number Alkaline Cells Typical subcircuit call for a single Alkaline N cell: X1 +node -node SOC RATE ALKALINE PARAMS: CAPACITY=0.9,RESISTANCE=5 N 0.9 0.8 — — — AAA 1.2 0.6 — — — AA 2.5 0.3 — — — C 7.5 0.2 — — — D 16.4 0.07 — — — Nickel-Cadmium Cells (Standard) 1 Typical subcircuit call for a single NICD N cell: X1 +node -node SOC RATE CELL_TEMP NICD PARAMS: CAPACITY=0.15, RESISTANCE=5, VOLUME=0.2, WT=9 N 0.15 0.027 0.2 9 — AAA 0.18 0.021 0.24 10 — AA 0.48 0.012 0.48 24 — SUBC 1.2 0.005 1.1 50 — C 2 1.8 0.0045 1.6 80 — D 2 4.0 0.0035 3.4 160 — Nickel-Metal-Hydride Cells Typical subcircuit call for a single NIMH AA cell: X1 +node -node SOC RATE NIMH PARAMS: CAPACITY=1.1,RESISTANCE=0.03 AA 1.1 0.03 — — — 4/5A 1.5 0.02(estimated) — — — Lead-Acid Cells Typical subcircuit call for a 6 Volt, 1.3 Amp-hour Lead-Acid battery: X1 +node -node SOC RATE LEADACID PARAMS: CAPACITY=1.3,RESISTANCE=0.06,CELLS=3 6V-1.3A-hr 1.3 0.06 — — 3 6V-4.0A-hr 4.0 0.025 — — 3 6V-6.5A-hr 6.5 0.02 — — 3 6V-10A-hr 10 0.015 — — 3 12V-1.3A-hr 1.3 0.12 — — 6 12V-4.0A-hr 4.0 0.05 — — 6 12V-6.5A-hr 6.5 0.04 — — 6 12V-10A-hr 10 0.03 — — 6

Articles in this issue

Links on this page

view archives of PSpice Application Notes - PSpice App Note_Using PSpice to Simulate the Discharge Behavior of Common Batteries