diff --git a/phosphor-power-supply/power_supply.hpp b/phosphor-power-supply/power_supply.hpp
new file mode 100644
index 0000000..3bfa77a
--- /dev/null
+++ b/phosphor-power-supply/power_supply.hpp
@@ -0,0 +1,66 @@
+#pragma once
+
+namespace phosphor::power::psu
+{
+/**
+ * @class PowerSupply
+ * Represents a PMBus power supply device.
+ */
+class PowerSupply
+{
+  public:
+    PowerSupply();
+    PowerSupply(const PowerSupply&) = delete;
+    PowerSupply(PowerSupply&&) = delete;
+    PowerSupply& operator=(const PowerSupply&) = delete;
+    PowerSupply& operator=(PowerSupply&&) = delete;
+    ~PowerSupply() = default;
+
+    /**
+     * Power supply specific function to analyze for faults/errors.
+     *
+     * Various PMBus status bits will be checked for fault conditions.
+     * If a certain fault bits are on, the appropriate error will be
+     * committed.
+     */
+    void analyze()
+    {
+    }
+
+    /**
+     * Write PMBus CLEAR_FAULTS
+     *
+     * This function will be called in various situations in order to clear
+     * any fault status bits that may have been set, in order to start over
+     * with a clean state. Presence changes and power state changes will
+     * want to clear any faults logged.
+     */
+    void clearFaults()
+    {
+    }
+
+    /**
+     * @brief Adds properties to the inventory.
+     *
+     * Reads the values from the device and writes them to the
+     * associated power supply D-Bus inventory object.
+     *
+     * This needs to be done on startup, and each time the presence
+     * state changes.
+     *
+     * Properties added:
+     * - Serial Number
+     * - Part Number
+     * - CCIN (Customer Card Identification Number) - added as the Model
+     * - Firmware version
+     */
+    void updateInventory()
+    {
+    }
+
+  private:
+    /** @brief True if a fault has already been found and not cleared */
+    bool faultFound = false;
+};
+
+} // namespace phosphor::power::psu