Since the periodic pulsed power is a strong disturbance to the power system, the pulsed power must be suppressed by the pulsed load power supply (PLPS). In general, an additional converter with a storage capacitor is formed as the active capacitor in the original PLPS to reduce storage capacitance and achieve pulsed power decoupling. However, since the introduction of additional converters, the existing PLPS still faces high power loss, large volume, more components, etc. In this article, an active capacitor unit is proposed to be embedded in the original converter to form a new pulsed power suppression topology, in which only two switches and one storage capacitor are introduced to establish an energy storage port with bidirectional power flow characteristics. By doing so, the active capacitor-embedded PLPS (ACE-PLPS) can be developed, which features a compact structure and fewer components. Furthermore, the process of pulsed power decoupling is integrated into the switching states, resulting in a significant reduction in power loss. The implementation topology and control scheme are presented. Design guidelines are also developed. The effectiveness and feasibility of the ACE-PLPS are validated by the experimental results.