A wireless power transmitter, comprising: a multi-mode drive circuit having a controllable resonant frequency, the multi-mode drive circuit configured to be controlled to have a first resonant frequency to drive wireless power transmission at a first transmit frequency, and configured to be controlled to have a second resonant frequency higher than the first resonant frequency to drive wireless power transmission at a second transmit frequency higher than the first transmit frequency; a first matching network coupled to an output of the multi-mode drive circuit, wherein the first matching network is configured to provide a first signal at the first transmit frequency to a first transmit coil; and a second matching network coupled to the output of the multi-mode drive circuit, wherein the second matching network is configured to provide a second signal at the second transmit frequency to a second transmit coil, wherein the second matching network includes one or more components configured to attenuate signals at the first resonant frequency to inhibit signals at the first resonant frequency from driving the second transmit coil, wherein the first matching network includes one or more components configured to attenuate signals at the second resonant frequency to inhibit signals at the second resonant frequency from driving the first transmit coil, wherein the multi-mode drive circuit has a variable capacitance that is configured to be controlled to change the controllable resonant frequency, wherein the multi-mode drive circuit further comprises: a capacitor (C1a, C2a); and a first switch (Q3, Q4) configured to be controlled to connect or disconnect the capacitor to control whether the capacitor contributes to the variable capacitance, wherein the multi-mode drive circuit has a variable inductance that is configured to be controlled based on a mode of operation of the multi-mode drive circuit, wherein the multi-mode drive circuit further comprises: an inductor (L1a, L2a); and a second switch (S1, S2) configured to be controlled to connect or disconnect the inductor to control whether the inductor contributes to the variable inductance, wherein the second switch is configured to connect the inductor so that the inductor contributes to the variable inductance when the multi-mode drive circuit is controlled to drive wireless power transmission at the first transmit frequency, and wherein the second switch is configured to disconnect the inductor so that the inductor does not contribute to the variable inductance when the multi-mode drive circuit is controlled to drive wireless power transmission at the second transmit frequency. a multi-mode drive circuit having a controllable resonant frequency, the multi-mode drive circuit configured to be controlled to have a first resonant frequency to drive wireless power transmission at a first transmit frequency, and configured to be controlled to have a second resonant frequency higher than the first resonant frequency to drive wireless power transmission at a second transmit frequency higher than the first transmit frequency; a first matching network coupled to an output of the multi-mode drive circuit, wherein the first matching network is configured to provide a first signal at the first transmit frequency to a first transmit coil; and a second matching network coupled to the output of the multi-mode drive circuit, wherein the second matching network is configured to provide a second signal at the second transmit frequency to a second transmit coil, wherein the second matching network includes one or more components configured to attenuate signals at the first resonant frequency to inhibit signals at the first resonant frequency from driving the second transmit coil, wherein the first matching network includes one or more components configured to attenuate signals at the second resonant frequency to inhibit signals at the second resonant frequency from driving the first transmit coil, wherein the multi-mode drive circuit has a variable capacitance that is configured to be controlled to change the controllable resonant frequency, wherein the multi-mode drive circuit further comprises: a capacitor (C1a, C2a); and a first switch (Q3, Q4) configured to be controlled to connect or disconnect the capacitor to control whether the capacitor contributes to the variable capacitance, a capacitor (C1a, C2a); and a first switch (Q3, Q4) configured to be controlled to connect or disconnect the capacitor to control whether the capacitor contributes to the variable capacitance, wherein the multi-mode drive circuit has a variable inductance that is configured to be controlled based on a mode of operation of the multi-mode drive circuit, wherein the multi-mode drive circuit further comprises: an inductor (L1a, L2a); and a second switch (S1, S2) configured to be controlled to connect or disconnect the inductor to control whether the inductor contributes to the variable inductance, an inductor (L1a, L2a); and a second switch (S1, S2) configured to be controlled to connect or disconnect the inductor to control whether the inductor contributes to the variable inductance, wherein the second switch is configured to connect the inductor so that the inductor contributes to the variable inductance when the multi-mode drive circuit is controlled to drive wireless power transmission at the first transmit frequency, and wherein the second switch is configured to disconnect the inductor so that the inductor does not contribute to the variable inductance when the multi-mode drive circuit is controlled to drive wireless power transmission at the second transmit frequency.