In　order　to　realize　the　single-stage　boost　inverter,　a　single-stage　single-phase　current　mode　PWM　inverter　with　source　buffer　was　proposed,　and　its　output　voltage　feedback　compound　single-cycle　control　strategy　under　the　state　quantity　limit　was　proposed.　The　circuit　topology,　control　strategy,　key　circuit　parameter　design,　system　modeling　and　simulation　of　the　inverter　were　analyzed　and　studied,　and　some　important　conclusions　were　obtained.The　inverter　circuit　topology　is　mainly　composed　of　the　energy　storage　inductor,　the　active　buffer　circuit　and　the　current　type　single-phase　inverter　bridge.There　are　three　operating　modes　and　four　circuit　modes.The　purpose　of　limiting　the　state　quantity　of　energy　storage　inductor　current　and　buffer　capacitor　voltage　can　be　achieved　by　flexibly　switching　three　working　modes.The　output　sinusoidal　voltage　was　stabilized　by　compound　single　period　control　of　feedforward　energy　storage　inductor　current　and　feedback　output　voltage.The　experimental　results　of　1　kVA　100　V　DC/220　V　50　Hz　AC　inverter　show　that　the　proposed　inverter　can　realize　single-stage　boost　inverter,　and　has　the　advantages　of　high　quality　output　voltage　waveform,　strong　load　adaptability　and　good　dynamic　performance.　©　2022,　Harbin　University　of　Science　and　Technology　Publication.　All　right　reserved.